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ASHRAE Handbook 08 IP 2008

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2008 ASHRAE Handbook HVAC Systems and Equipment (I-P Edition)

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ASHRAE 2008
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1 I-P_S08_Ch01
I-P_S08_Ch01
Fig. 1 Process Flow Diagram
Fig. 1 Process Flow Diagram
Fig. 1 Process Flow Diagram
Fig. 1 Process Flow Diagram
Selecting a System
Selecting a System
2 Additional Goals
Additional Goals
System Constraints
System Constraints
Constructability Constraints
Constructability Constraints
3 Narrowing the Choices
Narrowing the Choices
Selection Report
Selection Report
HVAC Systems and Equipment
HVAC Systems and Equipment
Decentralized System Characteristics
Decentralized System Characteristics
4 Table 1 Sample HVAC System Analysis and Selection Matrix (0 to 10 Score)
Table 1 Sample HVAC System Analysis and Selection Matrix (0 to 10 Score)
Centralized System Characteristics
Centralized System Characteristics
5 Primary Equipment
Primary Equipment
Refrigeration Equipment
Refrigeration Equipment
Heating Equipment
Heating Equipment
Air Delivery Equipment
Air Delivery Equipment
Space Requirements
Space Requirements
6 Equipment Rooms
Equipment Rooms
Fan Rooms
Fan Rooms
Horizontal Distribution
Horizontal Distribution
Vertical Shafts
Vertical Shafts
7 Rooftop Equipment
Rooftop Equipment
Equipment Access
Equipment Access
Air Distribution
Air Distribution
Air Terminal Units
Air Terminal Units
Duct Insulation
Duct Insulation
Ceiling and Floor Plenums
Ceiling and Floor Plenums
8 Pipe Distribution
Pipe Distribution
Pipe Systems
Pipe Systems
Pipe Insulation
Pipe Insulation
Security
Security
Automatic Controls and Building Management System
Automatic Controls and Building Management System
Maintenance Management System
Maintenance Management System
9 Building System Commissioning
Building System Commissioning
References
References
10 I-P_S08_Ch02
I-P_S08_Ch02
System Characteristics
System Characteristics
Advantages
Advantages
11 Disadvantages
Disadvantages
Design Considerations
Design Considerations
Air-Side Economizer
Air-Side Economizer
Water-Side Economizer
Water-Side Economizer
12 Window-Mounted and Through-the-Wall Room HVAC Units and Air-Cooled Heat Pumps
Window-Mounted and Through-the-Wall Room HVAC Units and Air-Cooled Heat Pumps
Advantages
Advantages
Disadvantages
Disadvantages
Design Considerations
Design Considerations
13 Water-Source Heat Pump Systems
Water-Source Heat Pump Systems
Advantages
Advantages
Disadvantages
Disadvantages
Design Considerations
Design Considerations
Fig. 1 Multiple-Unit Systems Using Single-Zone Unitary HVAC Equipment
Fig. 1 Multiple-Unit Systems Using Single-Zone Unitary HVAC Equipment
Fig. 1 Multiple-Unit Systems Using Single-Zone Unitary HVAC Equipment
Fig. 1 Multiple-Unit Systems Using Single-Zone Unitary HVAC Equipment
Multiple-Unit Systems
Multiple-Unit Systems
14 Advantages
Advantages
Disadvantages
Disadvantages
Design Considerations
Design Considerations
Fig. 2 Vertical Self-Contained Unit
Fig. 2 Vertical Self-Contained Unit
Fig. 2 Vertical Self-Contained Unit
Fig. 2 Vertical Self-Contained Unit
Fig. 3 Multiroom, Multistory office Building with Unitary Core and Through-the-Wall Perimeter Air Conditioners (Combination Similar to Figure 1)
Fig. 3 Multiroom, Multistory office Building with Unitary Core and Through-the-Wall Perimeter Air Conditioners (Combination Similar to Figure 1)
Fig. 3 Multiroom, Multistory Office Building with Unitary Core and Through-the-Wall Perimeter Air Conditioners (Combination Similar to Figure 1)
Fig. 3 Multiroom, Multistory Office Building with Unitary Core and Through-the-Wall Perimeter Air Conditioners (Combination Similar to Figure 1)
15 Residential and Light Commercial Split Systems
Residential and Light Commercial Split Systems
Advantages
Advantages
Disadvantages
Disadvantages
Design Considerations
Design Considerations
Commercial Self-Contained (Floor-by-Floor) Systems
Commercial Self-Contained (Floor-by-Floor) Systems
Advantages
Advantages
16 Fig. 4 Commercial Self-Contained Unit with Discharge Plenum
Fig. 4 Commercial Self-Contained Unit with Discharge Plenum
Fig. 4 Commercial Self-Contained Unit with Discharge Plenum
Fig. 4 Commercial Self-Contained Unit with Discharge Plenum
Disadvantages
Disadvantages
Design Considerations
Design Considerations
17 Commercial Outdoor Packaged Systems
Commercial Outdoor Packaged Systems
Advantages
Advantages
Disadvantages
Disadvantages
Design Considerations
Design Considerations
18 Automatic Controls and Building Management Systems
Automatic Controls and Building Management Systems
Maintenance Management
Maintenance Management
Building System Commissioning
Building System Commissioning
19 Bibliography
Bibliography
20 I-P_S08_Ch03
I-P_S08_Ch03
System Characteristics
System Characteristics
Advantages
Advantages
21 Disadvantages
Disadvantages
Design Considerations
Design Considerations
Cooling and Heating Loads
Cooling and Heating Loads
System Flow Design
System Flow Design
22 Fig. 1 Primary Variable-Flow System
Fig. 1 Primary Variable-Flow System
Fig. 1 Primary Variable-Flow System
Fig. 1 Primary Variable-Flow System
Fig. 2 Primary (Limited) Variable-Flow System Using Head Pressure Control
Fig. 2 Primary (Limited) Variable-Flow System Using Head Pressure Control
Fig. 2 Primary (Limited) Variable-Flow System Using Distribution Pressure Control
Fig. 2 Primary (Limited) Variable-Flow System Using Distribution Pressure Control
Energy Recovery and Thermal Storage
Energy Recovery and Thermal Storage
Equipment
Equipment
Primary Refrigeration Equipment
Primary Refrigeration Equipment
23 Fig. 3 Primary/Secondary Pumping Chilled-Water System
Fig. 3 Primary/Secondary Pumping Chilled-Water System
Fig. 3 Primary/Secondary Pumping Chilled-Water System
Fig. 3 Primary/Secondary Pumping Chilled-Water System
Fig. 4 Primary/Secondary Pumping Hot-Water System
Fig. 4 Primary/Secondary Pumping Hot-Water System
Fig. 4 Primary/Secondary Pumping Hot-Water System
Fig. 4 Primary/Secondary Pumping Hot-Water System
Ancillary Refrigeration Equipment
Ancillary Refrigeration Equipment
24 Primary Heating Equipment
Primary Heating Equipment
Ancillary Heating Equipment
Ancillary Heating Equipment
25 Distribution Systems
Distribution Systems
Acoustic, Vibration, and Seismic Considerations
Acoustic, Vibration, and Seismic Considerations
Sound and Vibration
Sound and Vibration
26 Seismic Issues
Seismic Issues
Space Considerations
Space Considerations
27 Location of Central Plant and Equipment
Location of Central Plant and Equipment
Central Plant Security
Central Plant Security
Automatic Controls and Building Management Systems
Automatic Controls and Building Management Systems
28 Instrumentation
Instrumentation
Maintenance Management Systems
Maintenance Management Systems
Building System Commissioning
Building System Commissioning
References
References
29 I-P_S08_Ch04
I-P_S08_Ch04
Advantages
Advantages
Disadvantages
Disadvantages
30 Heating and Cooling Calculations
Heating and Cooling Calculations
Zoning
Zoning
Space Heating
Space Heating
Air Temperature Versus Air Quantity
Air Temperature Versus Air Quantity
31 Space Pressure
Space Pressure
Other Considerations
Other Considerations
First, Operating, and Maintenance Costs
First, Operating, and Maintenance Costs
Energy
Energy
Air-Handling Units
Air-Handling Units
Fig. 1 Typical Air-Handling Unit Configurations
Fig. 1 Typical Air-Handling Unit Configurations
Fig. 1 Typical Air-Handling Unit Configurations
Fig. 1 Typical Air-Handling Unit Configurations
32 Primary Equipment
Primary Equipment
Air-Handling Equipment
Air-Handling Equipment
Central Mechanical Equipment Rooms (MERs)
Central Mechanical Equipment Rooms (MERs)
Decentralized MERs
Decentralized MERs
Fans
Fans
Air-Handling Unit Psychrometric Processes
Air-Handling Unit Psychrometric Processes
Cooling
Cooling
Fig. 2 Direct-Expansion or Chilled Water Cooling and Dehumidification
Fig. 2 Direct-Expansion or Chilled Water Cooling and Dehumidification
Fig. 2 Direct-Expansion or Chilled-Water Cooling and Dehumidification
Fig. 2 Direct-Expansion or Chilled-Water Cooling and Dehumidification
33 Fig. 3 Direct Spray of Water in Airstream Cooling
Fig. 3 Direct Spray of Water in Airstream Cooling
Fig. 3 Direct Spray of Water in Airstream Cooling
Fig. 3 Direct Spray of Water in Airstream Cooling
Heating
Heating
Fig. 4 Indirect Evaporative Cooling
Fig. 4 Indirect Evaporative Cooling
Fig. 4 Supersaturated Evaporative Cooling
Fig. 4 Supersaturated Evaporative Cooling
Fig. 5 Steam, Hot-Water, and Electric Heating, and Direct and Indirect Gas- and Oil-Fired Heat Exchangers
Fig. 5 Steam, Hot-Water, and Electric Heating, and Direct and Indirect Gas- and Oil-Fired Heat Exchangers
Fig. 5 Steam, Hot-Water, and Electric Heating, and Direct and Indirect Gas- and Oil-Fired Heat Exchangers
Fig. 5 Steam, Hot-Water, and Electric Heating, and Direct and Indirect Gas- and Oil-Fired Heat Exchangers
Humidification
Humidification
Dehumidification
Dehumidification
34 Fig. 6 Direct Spray of Recirculated Water
Fig. 6 Direct Spray of Recirculated Water
Fig. 6 Direct Spray Humidification
Fig. 6 Direct Spray Humidification
Fig. 7 Steam Injection Humidification
Fig. 7 Steam Injection Humidification
Fig. 7 Steam Injection Humidification
Fig. 7 Steam Injection Humidification
Fig. 8 Chemical Humidification
Fig. 8 Chemical Humidification
Fig. 8 Chemical Dehumidification
Fig. 8 Chemical Dehumidification
Air Mixing or Blending
Air Mixing or Blending
Air-Handling Unit Components
Air-Handling Unit Components
Return Air Fan
Return Air Fan
35 Relief Air Fan
Relief Air Fan
Automatic Dampers
Automatic Dampers
Relief Openings
Relief Openings
Return Air Dampers
Return Air Dampers
Outside Air Intakes
Outside Air Intakes
Economizers
Economizers
Mixing Plenums
Mixing Plenums
36 Static Air Mixers
Static Air Mixers
Filter Section
Filter Section
Preheat Coil
Preheat Coil
Cooling Coil
Cooling Coil
37 Reheat Coil
Reheat Coil
Humidifiers
Humidifiers
Dehumidifiers
Dehumidifiers
Energy Recovery Devices
Energy Recovery Devices
Sound Control Devices
Sound Control Devices
Supply Air Fan
Supply Air Fan
38 Miscellaneous Components
Miscellaneous Components
Air Distribution
Air Distribution
Ductwork Design
Ductwork Design
Single-Duct Systems
Single-Duct Systems
Constant Volume
Constant Volume
39 Fig. 9 Constant-Volume System with Reheat and Fan-Powered Terminal Unit
Fig. 9 Constant-Volume System with Reheat and Fan-Powered Terminal Unit
Fig. 9 Constant-Volume System with Reheat
Fig. 9 Constant-Volume System with Reheat
Variable Air Volume (VAV)
Variable Air Volume (VAV)
Fig. 10 Variable-Air-Volume System with Reheat and Induction and Fan-Powered Devices
Fig. 10 Variable-Air-Volume System with Reheat and Induction and Fan-Powered Devices
Fig. 10 Variable-Air-Volume System with Reheat and Induction and Fan-Powered Devices
Fig. 10 Variable-Air-Volume System with Reheat and Induction and Fan-Powered Devices
40 Fig. 11 Single-Fan, Dual-Duct System
Fig. 11 Single-Fan, Dual-Duct System
Fig. 11 Single-Fan, Dual-Duct System
Fig. 11 Single-Fan, Dual-Duct System
Dual-Duct Systems
Dual-Duct Systems
Constant Volume
Constant Volume
Variable Air Volume
Variable Air Volume
Fig. 12 Variable Air Volume, Dual Duct, Dual Fan
Fig. 12 Variable Air Volume, Dual Duct, Dual Fan
Fig. 12 Dual-Fan, Dual-Duct System
Fig. 12 Dual-Fan, Dual-Duct System
41 Multizone Systems
Multizone Systems
Fig. 13 Multizone System
Fig. 13 Multizone System
Fig. 13 Multizone System
Fig. 13 Multizone System
Special Systems
Special Systems
Primary/Secondary
Primary/Secondary
42 Fig. 14 Primary/Secondary System
Fig. 14 Primary/Secondary System
Fig. 14 Primary/Secondary System
Fig. 14 Primary/Secondary System
Dedicated Outdoor Air
Dedicated Outdoor Air
Underfloor Air Distribution
Underfloor Air Distribution
Fig. 15 Underfloor Air Displacement
Fig. 15 Underfloor Air Displacement
Fig. 15 Underfloor Air Distribution
Fig. 15 Underfloor Air Distribution
43 Wetted Duct/Supersaturated
Wetted Duct/Supersaturated
Fig. 16 Supersaturated/Wetted Coil
Fig. 16 Supersaturated/Wetted Coil
Fig. 16 Supersaturated/Wetted Coil
Fig. 16 Supersaturated/Wetted Coil
Compressed-Air and Water Spray
Compressed-Air and Water Spray
Low-Temperature
Low-Temperature
Smoke Management
Smoke Management
Terminal Units
Terminal Units
44 Constant-Volume Reheat
Constant-Volume Reheat
Variable Air Volume
Variable Air Volume
45 Terminal Humidifiers
Terminal Humidifiers
Terminal Filters
Terminal Filters
Air Distribution System Controls
Air Distribution System Controls
46 Automatic Controls and Building Management System
Automatic Controls and Building Management System
Maintenance Management System
Maintenance Management System
Building System Commissioning
Building System Commissioning
References
References
Bibliography
Bibliography
47 I-P_S08_Ch05
I-P_S08_Ch05
System Characteristics
System Characteristics
48 Heating and Cooling Calculations
Heating and Cooling Calculations
Space Heating
Space Heating
Central Ventilation Systems
Central Ventilation Systems
Piping Distribution
Piping Distribution
Other Considerations
Other Considerations
First, Operating, and Maintenance Costs
First, Operating, and Maintenance Costs
49 Energy
Energy
System Components and Configurations
System Components and Configurations
Components
Components
Configurations
Configurations
Piping Arrangements
Piping Arrangements
Four-Pipe Distribution
Four-Pipe Distribution
50 Fig. 1 Typical Fan-Coil Unit Arrangements
Fig. 1 Typical Fan-Coil Unit Arrangements
Fig. 1 Typical Fan-Coil Arrangements
Fig. 1 Typical Fan-Coil Arrangements
Two-Pipe Distribution
Two-Pipe Distribution
Three-Pipe Distribution
Three-Pipe Distribution
Fan-Coil Unit Systems
Fan-Coil Unit Systems
51 Fig. 2 Typical Fan-Coil Unit
Fig. 2 Typical Fan-Coil Unit
Fig. 2 Typical Fan-Coil Unit
Fig. 2 Typical Fan-Coil Unit
Types and Location
Types and Location
Ventilation Air Requirements
Ventilation Air Requirements
Selection
Selection
Wiring
Wiring
Condensate
Condensate
52 Capacity Control
Capacity Control
Maintenance
Maintenance
Unit Ventilator Systems
Unit Ventilator Systems
Types and Location
Types and Location
Ventilation Air Requirements
Ventilation Air Requirements
Selection
Selection
Wiring
Wiring
53 Condensate
Condensate
Capacity Control
Capacity Control
Maintenance
Maintenance
Chilled-Beam Systems
Chilled-Beam Systems
Types and Location
Types and Location
Ventilation Air Requirements
Ventilation Air Requirements
Selection
Selection
Wiring
Wiring
Condensate
Condensate
Capacity Control
Capacity Control
Maintenance
Maintenance
54 Radiant-Panel Heating Systems
Radiant-Panel Heating Systems
Types and Location
Types and Location
Ventilation Air Requirements
Ventilation Air Requirements
Selection
Selection
Wiring
Wiring
Capacity Control
Capacity Control
Maintenance
Maintenance
Other Radiant Panel Options
Other Radiant Panel Options
Radiant-Floor Heat Systems
Radiant-Floor Heat Systems
Types and Location
Types and Location
Ventilation Air Requirements
Ventilation Air Requirements
Selection
Selection
Wiring
Wiring
Capacity Control
Capacity Control
Maintenance
Maintenance
Induction-Unit Systems
Induction-Unit Systems
55 Supplemental Heating Units
Supplemental Heating Units
Central Plant Equipment
Central Plant Equipment
Ventilation
Ventilation
Fig. 3 IP
Fig. 3 IP
Fig. 3 Ventilation from Separate Duct System
Fig. 3 Ventilation from Separate Duct System
56 Primary-Air Systems
Primary-Air Systems
Fig. 4 Primary-air System
Fig. 4 Primary-air System
Fig. 4 Primary-Air System
Fig. 4 Primary-Air System
Performance Under Varying Load
Performance Under Varying Load
57 Fig. 5 Solar Radiation Variations with Seasons
Fig. 5 Solar Radiation Variations with Seasons
Fig. 5 Solar Radiation Variations with Seasons
Fig. 5 Solar Radiation Variations with Seasons
Changeover Temperature
Changeover Temperature
Refrigeration Load
Refrigeration Load
58 Two-Pipe Systems with Central Ventilation
Two-Pipe Systems with Central Ventilation
Fig. 6 IP
Fig. 6 IP
Fig. 6 Capacity Ranges of In-Room Terminal Operating on Two-Pipe System
Fig. 6 Capacity Ranges of In-Room Terminal Operating on Two-Pipe System
Critical Design Elements
Critical Design Elements
59 Fig. 7 IP
Fig. 7 IP
Fig. 7 Primary-Air Temperature Versus Outside Air Temperature
Fig. 7 Primary-Air Temperature Versus Outside Air Temperature
Changeover Temperature Considerations
Changeover Temperature Considerations
Fig. 8 IP
Fig. 8 IP
Fig. 8 Psychrometric Chart, Two-Pipe System, Off-Season Cooling
Fig. 8 Psychrometric Chart, Two-Pipe System, Off-Season Cooling
Fig. 9 IP
Fig. 9 IP
Fig. 9 Typical Changeover System Temperature Variation
Fig. 9 Typical Changeover System Temperature Variation
Nonchangeover Design
Nonchangeover Design
60 Fig. 10 IP
Fig. 10 IP
Fig. 10 Typical Nonchangeover System Variations
Fig. 10 Typical Nonchangeover System Variations
Zoning
Zoning
Room Control
Room Control
Evaluation
Evaluation
Electric Heat for Two-Pipe Systems
Electric Heat for Two-Pipe Systems
Four-Pipe Systems
Four-Pipe Systems
61 Fig. 11 Fan Coil Unit Control
Fig. 11 Fan Coil Unit Control
Fig. 11 Fan-Coil Unit Control
Fig. 11 Fan-Coil Unit Control
Zoning
Zoning
Room Control
Room Control
Evaluation
Evaluation
Secondary-Water Distribution
Secondary-Water Distribution
Automatic Controls and Building Management Systems
Automatic Controls and Building Management Systems
62 Maintenance Management Systems
Maintenance Management Systems
Building System Commissioning
Building System Commissioning
References
References
Bibliography
Bibliography
63 I-P_S08_Ch06
I-P_S08_Ch06
Principles of Thermal Radiation
Principles of Thermal Radiation
General Evaluation
General Evaluation
64 Heat Transfer by Panel Surfaces
Heat Transfer by Panel Surfaces
Heat Transfer by Thermal Radiation
Heat Transfer by Thermal Radiation
65 Fig. 1 IP
Fig. 1 IP
Fig. 1 Radiation Heat Flux at Heated Ceiling, Floor, or Wall Panel Surfaces
Fig. 1 Radiation Heat Flux at Heated Ceiling, Floor, or Wall Panel Surfaces
Fig. 2 IP
Fig. 2 IP
Fig. 2 Heat Removed by Radiation at Cooled Ceiling or Wall Panel Surface
Fig. 2 Heat Removed by Radiation at Cooled Ceiling or Wall Panel Surface
Heat Transfer by Natural Convection
Heat Transfer by Natural Convection
66 Fig. 3 IP
Fig. 3 IP
Fig. 3 Natural-Convection Heat Transfer at Floor, Ceiling, and Wall Panel Surfaces
Fig. 3 Natural-Convection Heat Transfer at Floor, Ceiling, and Wall Panel Surfaces
Fig. 4 IP
Fig. 4 IP
Fig. 4 Empirical Data for Heat Removal by Ceiling Cooling Panels from Natural Convection
Fig. 4 Empirical Data for Heat Removal by Ceiling Cooling Panels from Natural Convection
67 Combined Heat Flux (Thermal Radiation and Natural Convection)
Combined Heat Flux (Thermal Radiation and Natural Convection)
Fig. 5 IP
Fig. 5 IP
Fig. 5 Relation of Inside Surface Temperature to Overall Heat Transfer Coefficient
Fig. 5 Relation of Inside Surface Temperature to Overall Heat Transfer Coefficient
Fig. 6 IP
Fig. 6 IP
Fig. 6 Inside Surface Temperature Correction for Exposed Wall at Dry-Bulb Air Temperatures Other Than 70ËšF
Fig. 6 Inside Surface Temperature Correction for Exposed Wall at Dry-Bulb Air Temperatures Other Than 70ËšF
Fig. 7 IP
Fig. 7 IP
Fig. 7 Cooled Ceiling Panel Performance in Uniform Environment with No Infiltration and No Internal Heat Sources
Fig. 7 Cooled Ceiling Panel Performance in Uniform Environment with No Infiltration and No Internal Heat Sources
68 General Design Considerations
General Design Considerations
Panel Thermal Resistance
Panel Thermal Resistance
Table 1 Thermal Resistance of Ceiling Panels
Table 1 Thermal Resistance of Ceiling Panels
69 Effect of Floor Coverings
Effect of Floor Coverings
Table 2 Thermal Conductivity of Typical Tube Material
Table 2 Thermal Conductivity of Typical Tube Material
Table 3 Thermal Resistance of Floor Coverings
Table 3 Thermal Resistance of Floor Coverings
Panel Heat Losses or Gains
Panel Heat Losses or Gains
70 Fig. 8 IP
Fig. 8 IP
Fig. 8 Downward and Edgewise Heat Loss Coefficient for Concrete Floor Slabs on Grade
Fig. 8 Downward and Edgewise Heat Loss Coefficient for Concrete Floor Slabs on Grade
Panel Performance
Panel Performance
Panel Design
Panel Design
71 Fig. 9 IP
Fig. 9 IP
Fig. 9 Design Graph for Sensible Heating and Cooling with Floor and Ceiling Panels
Fig. 9 Design Graph for Sensible Heating and Cooling with Floor and Ceiling Panels
Heating and Cooling Panel Systems
Heating and Cooling Panel Systems
72 Fig. 10 IP
Fig. 10 IP
Fig. 10 Design Graph for Heating with Aluminum Ceiling and Wall Panels
Fig. 10 Design Graph for Heating with Aluminum Ceiling and Wall Panels
Special Cases
Special Cases
73 Hydronic Panel Systems
Hydronic Panel Systems
Design Considerations
Design Considerations
Fig. 11 Both
Fig. 11 Both
Fig. 11 Primary/Secondary Water Distribution System with Mixing Control
Fig. 11 Primary/Secondary Water Distribution System with Mixing Control
74 Fig. 12 Both
Fig. 12 Both
Fig. 12 Split Panel Piping Arrangement for Two-Pipe and Four-Pipe Systems
Fig. 12 Split Panel Piping Arrangement for Two-Pipe and Four-Pipe Systems
75 Hydronic Metal Ceiling Panels
Hydronic Metal Ceiling Panels
Fig. 13 IP
Fig. 13 IP
Fig. 13 Metal Ceiling Panels Attached to Pipe Laterals
Fig. 13 Metal Ceiling Panels Attached to Pipe Laterals
Fig. 14 Both
Fig. 14 Both
Fig. 14 Metal Ceiling Panels Bonded to Copper Tubing
Fig. 14 Metal Ceiling Panels Bonded to Copper Tubing
76 Fig. 15 Both
Fig. 15 Both
Fig. 15 Extruded Aluminum Panels with Integral Copper Tube
Fig. 15 Extruded Aluminum Panels with Integral Copper Tube
Fig. 16 IP
Fig. 16 IP
Fig. 16 Permitted Design Ceiling Surface Temperatures at Various Ceiling Heights
Fig. 16 Permitted Design Ceiling Surface Temperatures at Various Ceiling Heights
Distribution and Layout
Distribution and Layout
Fig. 17 Both
Fig. 17 Both
Fig. 17 Coils in Structural Concrete Slab
Fig. 17 Coils in Structural Concrete Slab
77 Fig. 18 IP
Fig. 18 IP
Fig. 18 Coils in Plaster Above Lath
Fig. 18 Coils in Plaster Above Lath
Fig. 19 Both
Fig. 19 Both
Fig. 19 Coils in Plaster Below Lath
Fig. 19 Coils in Plaster Below Lath
Hydronic Wall Panels
Hydronic Wall Panels
Fig. 20 Both
Fig. 20 Both
Fig. 20 Coils in Floor Slab on Grade
Fig. 20 Coils in Floor Slab on Grade
Hydronic Floor Panels
Hydronic Floor Panels
78 Fig. 21 IP
Fig. 21 IP
Fig. 21 Embedded Tube in Thin Slab
Fig. 21 Embedded Tube in Thin Slab
Fig. 22 Both
Fig. 22 Both
Fig. 22 Tube in Subfloor
Fig. 22 Tube in Subfloor
Fig. 23 Both
Fig. 23 Both
Fig. 23 Tube Under Subfloor
Fig. 23 Tube Under Subfloor
Electrically Heated Panel Systems
Electrically Heated Panel Systems
Electric Ceiling Panels
Electric Ceiling Panels
79 Table 4 Characteristics of Typical Electric Panels
Table 4 Characteristics of Typical Electric Panels
Fig. 24 Both
Fig. 24 Both
Fig. 24 Electric Heating Panels
Fig. 24 Electric Heating Panels
80 Fig. 25 IP
Fig. 25 IP
Fig. 25 Electric Heating Panel for Wet Plaster Ceiling
Fig. 25 Electric Heating Panel for Wet Plaster Ceiling
Electric Wall Panels
Electric Wall Panels
Electric Floor Panels
Electric Floor Panels
81 Fig. 26 IP
Fig. 26 IP
Fig. 26 Electric Heating Cable in Concrete Slab
Fig. 26 Electric Heating Cable in Concrete Slab
Air-Heated or Air-Cooled Panels
Air-Heated or Air-Cooled Panels
Fig. 27 Both
Fig. 27 Both
Fig. 27 Warm Air Floor Panel Construction
Fig. 27 Warm Air Floor Panel Construction
Fig. 28 Both
Fig. 28 Both
Fig. 28 Typical Hybrid Panel Construction
Fig. 28 Typical Hybrid Panel Construction
Controls
Controls
82 Sensible Cooling Panel Controls
Sensible Cooling Panel Controls
Heating Slab Controls
Heating Slab Controls
Hybrid (Load-Sharing) HVAC Systems
Hybrid (Load-Sharing) HVAC Systems
Fig. 29 Both
Fig. 29 Both
Fig. 29 Typical Residential Hybrid HVAC System
Fig. 29 Typical Residential Hybrid HVAC System
83 References
References
Bibliography
Bibliography
84 I-P_S08_Ch07
I-P_S08_Ch07
Fig. 1 Cogeneration Cycles
Fig. 1 Cogeneration Cycles
Fig. 1 CHP Cycles
Fig. 1 CHP Cycles
85 Table 1 Applications and Markets for DG/CHP Systems
Table 1 Applications and Markets for DG/CHP Systems
Terminology
Terminology
86 CHP System Concepts
CHP System Concepts
Custom-Engineered Systems
Custom-Engineered Systems
Packaged and Modular Systems
Packaged and Modular Systems
87 Load Profiling and Prime Mover Selection
Load Profiling and Prime Mover Selection
Peak Shaving
Peak Shaving
Continuous-Duty Standby
Continuous-Duty Standby
Fig. 2 Dual-Service Applications
Fig. 2 Dual-Service Applications
Fig. 2 Dual-Service Applications
Fig. 2 Dual-Service Applications
Power Plant Incremental Heat Rate
Power Plant Incremental Heat Rate
88 Performance Parameters
Performance Parameters
Heating Value
Heating Value
CHP Electric Effectiveness
CHP Electric Effectiveness
Power and Heating Systems
Power and Heating Systems
89 Table 2 Values of a for Conventional Thermal Generation Technologies
Table 2 Values of a for Conventional Thermal Generation Technologies
Fig. 3 Conventional Boiler for Example 1
Fig. 3 Conventional Boiler for Example 1
Fig. 3 Conventional Boiler for Example 1
Fig. 3 Conventional Boiler for Example 1
Fig. 4 Power-Only Generator for Example 1
Fig. 4 Power-Only Generator for Example 1
Fig. 4 Power-Only Generator for Example 1
Fig. 4 Power-Only Generator for Example 1
Fig. 5 Performance Parameters for Combined System for Example 2
Fig. 5 Performance Parameters for Combined System for Example 2
Fig. 5 Performance Parameters for Combined System for Example 2
Fig. 5 Performance Parameters for Combined System for Example 2
Fig. 6 CHP Power and Heating Energy Boundary Diagram for Example 2
Fig. 6 CHP Power and Heating Energy Boundary Diagram for Example 2
Fig. 6 CHP Power and Heating Energy Boundary Diagram for Example 2
Fig. 6 CHP Power and Heating Energy Boundary Diagram for Example 2
90 Fig. 7 Performance Parameters for Example 3
Fig. 7 Performance Parameters for Example 3
Fig. 7 Performance Parameters for Example 3
Fig. 7 Performance Parameters for Example 3
Fig. 8 CHP Power and Direct Heating Energy Boundary Diagram for Example 3
Fig. 8 CHP Power and Direct Heating Energy Boundary Diagram for Example 3
Fig. 8 CHP Power and Direct Heating Energy Boundary Diagram for Example 3
Fig. 8 CHP Power and Direct Heating Energy Boundary Diagram for Example 3
Fig. 9 Performance Parameters for Example 4
Fig. 9 Performance Parameters for Example 4
Fig. 9 Performance Parameters for Example 4
Fig. 9 Performance Parameters for Example 4
Fig. 10 CHP Power and HRSG Heating Without Duct Burner Energy Boundary Diagram for Example 4
Fig. 10 CHP Power and HRSG Heating Without Duct Burner Energy Boundary Diagram for Example 4
Fig. 10 CHP Power and HRSG Heating Without Duct Burner Energy Boundary Diagram for Example 4
Fig. 10 CHP Power and HRSG Heating Without Duct Burner Energy Boundary Diagram for Example 4
Fig. 11 Cofiring Performance Parameters for Example 4
Fig. 11 Cofiring Performance Parameters for Example 4
Fig. 11 Cofiring Performance Parameters for Example 4
Fig. 11 Cofiring Performance Parameters for Example 4
91 Fig. 12 CHP Power and HRSG Heating with Duct Burner Energy Boundary Diagram for Example 5
Fig. 12 CHP Power and HRSG Heating with Duct Burner Energy Boundary Diagram for Example 5
Fig. 12 CHP Power and HRSG Heating with Duct Burner Energy Boundary Diagram for Example 5
Fig. 12 CHP Power and HRSG Heating with Duct Burner Energy Boundary Diagram for Example 5
Table 3 Summary of Results from Examples 1 to 5
Table 3 Summary of Results from Examples 1 to 5
Table 4 Summary of Results Assuming 33% Efficient Combustion Turbine
Table 4 Summary of Results Assuming 33% Efficient Combustion Turbine
Table 5 Typical y Values
Table 5 Typical y Values
Fig. 13 Electric Effectiveness Versus Overall Efficiency
Fig. 13 Electric Effectiveness Versus Overall Efficiency
Fig. 13 Electric Effectiveness hE Versus Overall Efficiency hO
Fig. 13 Electric Effectiveness hE Versus Overall Efficiency hO
Fuel Energy Savings
Fuel Energy Savings
92 Table 6 Summary of Fuel Energy Savings for 25% Power Generator in Examples 1 to 5
Table 6 Summary of Fuel Energy Savings for 25% Power Generator in Examples 1 to 5
Table 7 Summary of Fuel Energy Savings for 33% Power Generator in Examples 1 to 5
Table 7 Summary of Fuel Energy Savings for 33% Power Generator in Examples 1 to 5
Fuel-to-Power Components
Fuel-to-Power Components
Reciprocating Engines
Reciprocating Engines
Types
Types
Table 8 Reciprocating Engine Types by Speed (Available Ratings)
Table 8 Reciprocating Engine Types by Speed (Available Ratings)
93 Performance Characteristics
Performance Characteristics
Fig. 14 Efficiency (HHV) of Spark Ignition Engines
Fig. 14 Efficiency (HHV) of Spark Ignition Engines
Fig. 14 Efficiency (HHV) of Spark Ignition Engines
Fig. 14 Efficiency (HHV) of Spark Ignition Engines
Fig. 15 Heat Rate (HHV) of Spark Ignition Engines
Fig. 15 Heat Rate (HHV) of Spark Ignition Engines
Fig. 15 Heat Rate (HHV) of Spark Ignition Engines
Fig. 15 Heat Rate (HHV) of Spark Ignition Engines
Fuels and Fuel Systems
Fuels and Fuel Systems
94 Fig. 16 Thermal-to-Electric Ratio of Spark Ignition Engines (Jacket and Exhaust Energy)
Fig. 16 Thermal-to-Electric Ratio of Spark Ignition Engines (Jacket and Exhaust Energy)
Fig. 16 Thermal-to-Electric Ratio of Spark Ignition Engines (Jacket and Exhaust Energy)
Fig. 16 Thermal-to-Electric Ratio of Spark Ignition Engines (Jacket and Exhaust Energy)
Fig. 17 Part-Load Heat Rate (HHV) of 1430, 425, and 85 kW Gas Engines
Fig. 17 Part-Load Heat Rate (HHV) of 1430, 425, and 85 kW Gas Engines
Fig. 17 Part-Load Heat Rate (HHV) of 1430, 425, and 85 kW Gas Engines
Fig. 17 Part-Load Heat Rate (HHV) of 1430, 425, and 85 kW Gas Engines
Fig. 18 Part-Load Thermal-to-Electric Ratio of 1430, 425, and 85 kW Gas Engines
Fig. 18 Part-Load Thermal-to-Electric Ratio of 1430, 425, and 85 kW Gas Engines
Fig. 18 Part-Load Thermal-to-Electric Ratio of 1430, 425, and 85 kW Gas Engines
Fig. 18 Part-Load Thermal-to-Electric Ratio of 1430, 425, and 85 kW Gas Engines
95 Table 9 Line Regulator Pressures
Table 9 Line Regulator Pressures
Combustion Air
Combustion Air
Lubricating Systems
Lubricating Systems
96 Table 10 Ventilation Air for Engine Equipment Rooms
Table 10 Ventilation Air for Engine Equipment Rooms
Starting Systems
Starting Systems
Cooling Systems
Cooling Systems
97 Exhaust Systems
Exhaust Systems
98 Table 11 Exhaust Pipe Diameter*
Table 11 Exhaust Pipe Diameter*
Emissions
Emissions
Instruments and Controls
Instruments and Controls
Noise and Vibration
Noise and Vibration
99 Fig. 19 Typical Reciprocating Engine Exhaust Noise Curves
Fig. 19 Typical Reciprocating Engine Exhaust Noise Curves
Fig. 19 Typical Reciprocating Engine Exhaust Noise Curves
Fig. 19 Typical Reciprocating Engine Exhaust Noise Curves
Fig. 20 Typical Attenuation Curves for Engine Silencers
Fig. 20 Typical Attenuation Curves for Engine Silencers
Fig. 20 Typical Attenuation Curves for Engine Silencers
Fig. 20 Typical Attenuation Curves for Engine Silencers
Installation Ventilation Requirements
Installation Ventilation Requirements
100 Table 12 Ventilation Air for Engine Equipment Rooms
Table 12 Ventilation Air for Engine Equipment Rooms
Operation and Maintenance
Operation and Maintenance
Table 13 Recommended Engine Maintenance
Table 13 Recommended Engine Maintenance
101 Combustion Turbines
Combustion Turbines
Types
Types
Advantages
Advantages
Disadvantages
Disadvantages
Gas Turbine Cycle
Gas Turbine Cycle
Fig. 21 Temperature-Entropy Diagram for Brayton Cycle
Fig. 21 Temperature-Entropy Diagram for Brayton Cycle
Fig. 21 Temperature-Entropy Diagram for Brayton Cycle
Fig. 21 Temperature-Entropy Diagram for Brayton Cycle
Components
Components
102 Fig. 22 Simple-Cycle Single-Shaft Turbine
Fig. 22 Simple-Cycle Single-Shaft Turbine
Fig. 22 Simple-Cycle Single-Shaft Turbine
Fig. 22 Simple-Cycle Single-Shaft Turbine
Fig. 23 Split-Shaft Turbines
Fig. 23 Split-Shaft Turbines
Fig. 23 Simple-Cycle Dual-Shaft Turbines
Fig. 23 Simple-Cycle Dual-Shaft Turbines
Performance Characteristics
Performance Characteristics
Fig. 24 Turbine Engine Performance Characteristics
Fig. 24 Turbine Engine Performance Characteristics
Fig. 24 Turbine Engine Performance Characteristics
Fig. 24 Turbine Engine Performance Characteristics
103 Fig. 25 Gas Turbine Refrigeration System Using Exhaust Heat
Fig. 25 Gas Turbine Refrigeration System Using Exhaust Heat
Fig. 25 Gas Turbine Refrigeration System Using Exhaust Heat
Fig. 25 Gas Turbine Refrigeration System Using Exhaust Heat
Fig. 26 CHP System Boundary
Fig. 26 CHP System Boundary
Fig. 26 CHP System Boundary
Fig. 26 CHP System Boundary
Fuels and Fuel Systems
Fuels and Fuel Systems
Combustion Air
Combustion Air
Fig. 27 Relative Turbine Power Output and Heat Rate Versus Inlet Air Temperature
Fig. 27 Relative Turbine Power Output and Heat Rate Versus Inlet Air Temperature
Fig. 27 Relative Turbine Power Output and Heat Rate Versus Inlet Air Temperature
Fig. 27 Relative Turbine Power Output and Heat Rate Versus Inlet Air Temperature
105 Lubricating Systems
Lubricating Systems
Starting Systems
Starting Systems
Exhaust Systems
Exhaust Systems
Emissions
Emissions
Instruments and Controls
Instruments and Controls
Noise and Vibration
Noise and Vibration
Operation and Maintenance
Operation and Maintenance
Fuel Cells
Fuel Cells
Types
Types
106 Table 14 Overview of Fuel Cell Characteristics
Table 14 Overview of Fuel Cell Characteristics
Fig. 28 PAFC Cell
Fig. 28 PAFC Cell
Fig. 28 PAFC Cell
Fig. 28 PAFC Cell
Fig. 29 SOFC Cell
Fig. 29 SOFC Cell
Fig. 29 SOFC Cell
Fig. 29 SOFC Cell
107 Fig. 30 MCFC Cell
Fig. 30 MCFC Cell
Fig. 30 MCFC Cell
Fig. 30 MCFC Cell
Fig. 31 PEMFC Cell
Fig. 31 PEMFC Cell
Fig. 31 PEMFC Cell
Fig. 31 PEMFC Cell
Fig. 32 AFC Cell
Fig. 32 AFC Cell
Fig. 32 AFC Cell
Fig. 32 AFC Cell
108 Thermal-To-Power Components
Thermal-To-Power Components
Steam Turbines
Steam Turbines
Types
Types
Fig. 33 Basic Types of Axial Flow Turbines
Fig. 33 Basic Types of Axial Flow Turbines
Fig. 33 Basic Types of Axial Flow Turbines
Fig. 33 Basic Types of Axial Flow Turbines
109 Performance Characteristics
Performance Characteristics
Fig. 34 Isentropic Versus Actual Turbine Process
Fig. 34 Isentropic Versus Actual Turbine Process
Fig. 34 Isentropic Versus Actual Turbine Process
Fig. 34 Isentropic Versus Actual Turbine Process
110 Fig. 35 Efficiency of Typical Multistage Turbines
Fig. 35 Efficiency of Typical Multistage Turbines
Fig. 35 Efficiency of Typical Multistage Turbines
Fig. 35 Efficiency of Typical Multistage Turbines
Fig. 36 Effect of Inlet Pressure and Superheat on Condensing Turbine
Fig. 36 Effect of Inlet Pressure and Superheat on Condensing Turbine
Fig. 36 Effect of Inlet Pressure and Superheat on Condensing Turbine
Fig. 36 Effect of Inlet Pressure and Superheat on Condensing Turbine
Fig. 37 Effect of Exhaust Pressure on Noncondensing Turbine
Fig. 37 Effect of Exhaust Pressure on Noncondensing Turbine
Fig. 37 Effect of Exhaust Pressure on Noncondensing Turbine
Fig. 37 Effect of Exhaust Pressure on Noncondensing Turbine
Fig. 38 Single-Stage Noncondensing Turbine Efficiency
Fig. 38 Single-Stage Noncondensing Turbine Efficiency
Fig. 38 Single-Stage Noncondensing Turbine Efficiency
Fig. 38 Single-Stage Noncondensing Turbine Efficiency
111 Table 15 Theoretical Steam Rates for Steam Turbines at Common Conditions, lb/kWh
Table 15 Theoretical Steam Rates for Steam Turbines at Common Conditions, lb/kWh
Fig. 39 Effect of Extraction Rate on Condensing Turbine
Fig. 39 Effect of Extraction Rate on Condensing Turbine
Fig. 39 Effect of Extraction Rate on Condensing Turbine
Fig. 39 Effect of Extraction Rate on Condensing Turbine
Fuel Systems
Fuel Systems
Lubricating Oil Systems
Lubricating Oil Systems
112 Power Systems
Power Systems
Exhaust Systems
Exhaust Systems
Instruments and Controls
Instruments and Controls
Fig. 40 Oil Relay Governor
Fig. 40 Oil Relay Governor
Fig. 40 Oil Relay Governor
Fig. 40 Oil Relay Governor
113 Fig. 41 Part-Load Turbine Performance Showing Effect of Auxiliary Valves
Fig. 41 Part-Load Turbine Performance Showing Effect of Auxiliary Valves
Fig. 41 Part-Load Turbine Performance Showing Effect of Auxiliary Valves
Fig. 41 Part-Load Turbine Performance Showing Effect of Auxiliary Valves
Fig. 42 Multivalve Oil Relay Governor
Fig. 42 Multivalve Oil Relay Governor
Fig. 42 Multivalve Oil Relay Governor
Fig. 42 Multivalve Oil Relay Governor
Table 16 NEMA Classification of Speed Governors
Table 16 NEMA Classification of Speed Governors
114 Operation and Maintenance
Operation and Maintenance
Organic Rankine Cycles
Organic Rankine Cycles
Expansion Engines/Turbines
Expansion Engines/Turbines
115 Stirling Engines
Stirling Engines
Types
Types
Fig. 43 Cut-Away Core of a Kinematic Stirling Engine
Fig. 43 Cut-Away Core of a Kinematic Stirling Engine
Fig. 43 Cutaway Core of a Kinematic Stirling Engine
Fig. 43 Cutaway Core of a Kinematic Stirling Engine
Fig. 44 Cut-Away Core of a Free-Piston Stirling Engine
Fig. 44 Cut-Away Core of a Free-Piston Stirling Engine
Fig. 44 Cutaway Core of a Free-Piston Stirling Engine
Fig. 44 Cutaway Core of a Free-Piston Stirling Engine
Performance Characteristics
Performance Characteristics
Fuel Systems
Fuel Systems
Power Systems
Power Systems
116 Exhaust Systems
Exhaust Systems
Coolant Systems
Coolant Systems
Operation and Maintenance
Operation and Maintenance
Thermal-to-Thermal Components
Thermal-to-Thermal Components
Thermal Output Characteristics
Thermal Output Characteristics
Reciprocating Engines
Reciprocating Engines
Fig. 45 Heat Balance for Naturally Aspirated Engine
Fig. 45 Heat Balance for Naturally Aspirated Engine
Fig. 45 Heat Balance for Naturally Aspirated Engine
Fig. 45 Heat Balance for Naturally Aspirated Engine
117 Fig. 46 Heat Balance for Turbocharged Engine
Fig. 46 Heat Balance for Turbocharged Engine
Fig. 46 Heat Balance for Turbocharged Engine
Fig. 46 Heat Balance for Turbocharged Engine
Combustion Turbines
Combustion Turbines
Heat Recovery
Heat Recovery
Reciprocating Engines
Reciprocating Engines
Fig. 47 Hot Water Heat Recovery
Fig. 47 Hot Water Heat Recovery
Fig. 47 Hot-Water Heat Recovery
Fig. 47 Hot-Water Heat Recovery
118 Fig. 48 Hot Water Engine Cooling with Steam Heat Recovery (Forced Recirculation)
Fig. 48 Hot Water Engine Cooling with Steam Heat Recovery (Forced Recirculation)
Fig. 48 Hot-Water Engine Cooling with Steam Heat Recovery (Forced Recirculation)
Fig. 48 Hot-Water Engine Cooling with Steam Heat Recovery (Forced Recirculation)
Fig. 49 Engine Cooling with Gravity Circulation and Steam Heat Recovery
Fig. 49 Engine Cooling with Gravity Circulation and Steam Heat Recovery
Fig. 49 Engine Cooling with Gravity Circulation and Steam Heat Recovery
Fig. 49 Engine Cooling with Gravity Circulation and Steam Heat Recovery
Fig. 50 Lubricant and Aftercooler System
Fig. 50 Lubricant and Aftercooler System
Fig. 50 Lubricant and Aftercooler System
Fig. 50 Lubricant and Aftercooler System
Fig. 51 Exhaust Heat Recovery with Steam Separator
Fig. 51 Exhaust Heat Recovery with Steam Separator
Fig. 51 Exhaust Heat Recovery with Steam Separator
Fig. 51 Exhaust Heat Recovery with Steam Separator
119 Fig. 52 Effect of Soot on Energy Recovery from Flue Gas Recovery Unit on Diesel Engine
Fig. 52 Effect of Soot on Energy Recovery from Flue Gas Recovery Unit on Diesel Engine
Fig. 52 Effect of Soot on Energy Recovery from Flue Gas Recovery Unit on Diesel Engine
Fig. 52 Effect of Soot on Energy Recovery from Flue Gas Recovery Unit on Diesel Engine
Fig. 53 Automatic Boiler System with Overriding Exhaust Temperature Control
Fig. 53 Automatic Boiler System with Overriding Exhaust Temperature Control
Fig. 53 Automatic Boiler System with Overriding Exhaust Temperature Control
Fig. 53 Automatic Boiler System with Overriding Exhaust Temperature Control
Fig. 54 Combined Exhaust and Jacket Water Heat Recovery System
Fig. 54 Combined Exhaust and Jacket Water Heat Recovery System
Fig. 54 Combined Exhaust and Jacket Water Heat Recovery System
Fig. 54 Combined Exhaust and Jacket Water Heat Recovery System
120 Fig. 55 Effect of Lowering Exhaust Temperature below 300ËšF
Fig. 55 Effect of Lowering Exhaust Temperature below 300ËšF
Fig. 55 Effect of Lowering Exhaust Temperature below 300ËšF
Fig. 55 Effect of Lowering Exhaust Temperature below 300ËšF
Table 17 Temperatures Normally Required for Various Heating Applications
Table 17 Temperatures Normally Required for Various Heating Applications
Table 18 Full-Load Exhaust Mass Flows and Temperatures for Various Engines
Table 18 Full-Load Exhaust Mass Flows and Temperatures for Various Engines
Combustion Turbines
Combustion Turbines
Steam Turbines
Steam Turbines
121 Fig. 56 Back Pressure Turbine
Fig. 56 Back Pressure Turbine
Fig. 56 Back-Pressure Turbine
Fig. 56 Back-Pressure Turbine
Fig. 57 Integration of Back Pressure Turbine with Facility
Fig. 57 Integration of Back Pressure Turbine with Facility
Fig. 57 Integration of Back-Pressure Turbine with Facility
Fig. 57 Integration of Back-Pressure Turbine with Facility
Fig. 58 Condensing Automatic Extraction Turbine
Fig. 58 Condensing Automatic Extraction Turbine
Fig. 58 Condensing Automatic Extraction Turbine
Fig. 58 Condensing Automatic Extraction Turbine
122 Fig. 59 Automatic Extraction Turbine Cogeneration System
Fig. 59 Automatic Extraction Turbine Cogeneration System
Fig. 59 Automatic Extraction Turbine CHP System
Fig. 59 Automatic Extraction Turbine CHP System
Fig. 60 Performance Map of Automatic Extraction Turbine
Fig. 60 Performance Map of Automatic Extraction Turbine
Fig. 60 Performance Map of Automatic Extraction Turbine
Fig. 60 Performance Map of Automatic Extraction Turbine
Thermally Activated Technologies
Thermally Activated Technologies
Heat-Activated Chillers
Heat-Activated Chillers
Fig. 61 Hybrid Heat Recovery Absorption Chiller-Heater
Fig. 61 Hybrid Heat Recovery Absorption Chiller-Heater
Fig. 61 Hybrid Heat Recovery Absorption Chiller-Heater
Fig. 61 Hybrid Heat Recovery Absorption Chiller-Heater
123 Desiccant Dehumidification
Desiccant Dehumidification
Hot Water and Steam Heat Recovery
Hot Water and Steam Heat Recovery
Thermal Energy Storage Technologies
Thermal Energy Storage Technologies
Electrical Generators and Components
Electrical Generators and Components
Generators
Generators
124 Fig. 62 Typical Generator Efficiency
Fig. 62 Typical Generator Efficiency
Fig. 62 Typical Generator Efficiency
Fig. 62 Typical Generator Efficiency
125 Table 19 Generator Control Functions
Table 19 Generator Control Functions
System Design
System Design
CHP Electricity-Generating Systems
CHP Electricity-Generating Systems
Thermal Loads
Thermal Loads
Prime Mover Selection
Prime Mover Selection
Fig. 63 Typical Heat Recovery Cycle for Gas Turbine
Fig. 63 Typical Heat Recovery Cycle for Gas Turbine
Fig. 63 Typical Heat Recovery Cycle for Gas Turbine
Fig. 63 Typical Heat Recovery Cycle for Gas Turbine
126 Air Systems
Air Systems
Hydronic Systems
Hydronic Systems
Service Water Heating
Service Water Heating
District Heating and Cooling
District Heating and Cooling
127 Utility Interfacing
Utility Interfacing
Power Quality
Power Quality
Output Energy Streams
Output Energy Streams
128 CHP Shaft-Driven HVAC and Refrigeration Systems
CHP Shaft-Driven HVAC and Refrigeration Systems
Engine-Driven Systems
Engine-Driven Systems
Table 20 Coefficient of Performance (COP) of Engine-Driven Chillers
Table 20 Coefficient of Performance (COP) of Engine-Driven Chillers
129 Fig. 64 Performance Curve for Typical, Gas Engine-Driven, Reciprocating Chiller
Fig. 64 Performance Curve for Typical, Gas Engine-Driven, Reciprocating Chiller
Fig. 64 Performance Curve for Typical 100 Ton, Gas-Engine-Driven, Reciprocating Chiller
Fig. 64 Performance Curve for Typical 100 Ton, Gas-Engine-Driven, Reciprocating Chiller
Table 21 Typical Efficiency of Engine-Driven Refrigeration Equipment (Ammonia Screw Compressor)
Table 21 Typical Efficiency of Engine-Driven Refrigeration Equipment (Ammonia Screw Compressor)
Combustion-Turbine-Driven Systems
Combustion-Turbine-Driven Systems
Fig. 65 Typical Gas Turbine Refrigeration Cycle
Fig. 65 Typical Gas Turbine Refrigeration Cycle
Fig. 65 Typical Gas Turbine Refrigeration Cycle
Fig. 65 Typical Gas Turbine Refrigeration Cycle
130 Steam-Turbine-Driven Systems
Steam-Turbine-Driven Systems
Fig. 66 Condensing Turbine-Driven Centrifugal Compressor
Fig. 66 Condensing Turbine-Driven Centrifugal Compressor
Fig. 66 Condensing Turbine-Driven Centrifugal Compressor
Fig. 66 Condensing Turbine-Driven Centrifugal Compressor
Fig. 67 Combination Centrifugal-Absorption System
Fig. 67 Combination Centrifugal-Absorption System
Fig. 67 Combination Centrifugal-Absorption System
Fig. 67 Combination Centrifugal-Absorption System
131 Codes and Installation
Codes and Installation
General Installation Parameters
General Installation Parameters
Utility Interconnection
Utility Interconnection
Air Permits
Air Permits
132 Building, Zoning, and Fire Codes
Building, Zoning, and Fire Codes
Zoning
Zoning
Building Code/Structural Design
Building Code/Structural Design
Mechanical/Plumbing Code
Mechanical/Plumbing Code
Fire Code
Fire Code
Electrical Connection
Electrical Connection
Economic Feasibility
Economic Feasibility
Economic Assessment
Economic Assessment
133 Preliminary Feasibility Bin Analysis Examples
Preliminary Feasibility Bin Analysis Examples
First Estimates
First Estimates
Load Duration Curve Analysis
Load Duration Curve Analysis
134 Fig. 68 Hypothetical Steam Load Profile
Fig. 68 Hypothetical Steam Load Profile
Fig. 68 Hypothetical Steam Load Profile
Fig. 68 Hypothetical Steam Load Profile
Fig. 69 Load Duration Curve
Fig. 69 Load Duration Curve
Fig. 69 Load Duration Curve
Fig. 69 Load Duration Curve
135 Fig. 70 Load Duration Curve with Multiple Generators
Fig. 70 Load Duration Curve with Multiple Generators
Fig. 70 Load Duration Curve with Multiple Generators
Fig. 70 Load Duration Curve with Multiple Generators
Fig. 71 Hypothetical Peaking Generator
Fig. 71 Hypothetical Peaking Generator
Fig. 71 Hypothetical Peaking Generator
Fig. 71 Hypothetical Peaking Generator
Two-Dimensional Load Duration Curve
Two-Dimensional Load Duration Curve
136 Fig. 72 Example of Two-Dimensional Load Duration Curve
Fig. 72 Example of Two-Dimensional Load Duration Curve
Fig. 72 Example of Two-Dimensional Load Duration Curve
Fig. 72 Example of Two-Dimensional Load Duration Curve
Analysis by Simulations
Analysis by Simulations
References
References
137 Bibliography
Bibliography
138 I-P_S08_Ch08
I-P_S08_Ch08
Terminology
Terminology
Applied Heat Pump Systems
Applied Heat Pump Systems
Heat Pump Cycles
Heat Pump Cycles
139 Fig. 1 Closed Vapor Compression Cycle
Fig. 1 Closed Vapor Compression Cycle
Fig. 1 Closed Vapor Compression Cycle
Fig. 1 Closed Vapor Compression Cycle
Fig. 2 Mechanical Vapor Recompression Cycle with Heat Exchanger
Fig. 2 Mechanical Vapor Recompression Cycle with Heat Exchanger
Fig. 2 Mechanical Vapor Recompression Cycle with Heat Exchanger
Fig. 2 Mechanical Vapor Recompression Cycle with Heat Exchanger
Fig. 3 Open Vapor Recompression Cycle
Fig. 3 Open Vapor Recompression Cycle
Fig. 3 Open Vapor Recompression Cycle
Fig. 3 Open Vapor Recompression Cycle
Fig. 4 Heat-Driven Rankine Cycle
Fig. 4 Heat-Driven Rankine Cycle
Fig. 4 Heat-Driven Rankine Cycle
Fig. 4 Heat-Driven Rankine Cycle
Heat Sources and Sinks
Heat Sources and Sinks
Air
Air
140 Table 1 Heat Pump Sources and Sinks
Table 1 Heat Pump Sources and Sinks
141 Water
Water
Ground
Ground
Solar Energy
Solar Energy
Types of Heat Pumps
Types of Heat Pumps
142 Fig. 5 Heat Pump Types
Fig. 5 Heat Pump Types
143 Heat Pump Components
Heat Pump Components
Compressors
Compressors
144 Fig. 6 Comparison of Parallel and Staged Operation for Air-Source Heat Pumps
Fig. 6 Comparison of Parallel and Staged Operation for Air-Source Heat Pumps
Fig. 6 Comparison of Parallel and Staged Operation for Air-Source Heat Pumps
Fig. 6 Comparison of Parallel and Staged Operation for Air-Source Heat Pumps
Fig. 7 Suction Line Separator for Protection Against Liquid Floodback
Fig. 7 Suction Line Separator for Protection Against Liquid Floodback
Fig. 7 Suction Line Separator for Protection Against Liquid Floodback
Fig. 7 Suction Line Separator for Protection Against Liquid Floodback
Heat Transfer Components
Heat Transfer Components
Fig. 8 Liquid Subcooling Coil in Ventilation Air Supply to Increase Heating Effect and Heating COP
Fig. 8 Liquid Subcooling Coil in Ventilation Air Supply to Increase Heating Effect and Heating COP
Fig. 8 Liquid Subcooling Coil in Ventilation Air Supply to Increase Heating Effect and Heating COP
Fig. 8 Liquid Subcooling Coil in Ventilation Air Supply to Increase Heating Effect and Heating COP
Fig. 9 Typical Increase in Heating Capacity Resulting from Use of Liquid Subcooling Coil
Fig. 9 Typical Increase in Heating Capacity Resulting from Use of Liquid Subcooling Coil
Fig. 9 Typical Increase in Heating Capacity Resulting from Using Liquid Subcooling Coil
Fig. 9 Typical Increase in Heating Capacity Resulting from Using Liquid Subcooling Coil
Refrigeration Components
Refrigeration Components
145 Controls
Controls
Supplemental Heating
Supplemental Heating
Industrial Process Heat Pumps
Industrial Process Heat Pumps
146 Closed-Cycle Systems
Closed-Cycle Systems
Fig. 10 Dehumidification Heat Pump
Fig. 10 Dehumidification Heat Pump
Fig. 10 Dehumidification Heat Pump
Fig. 10 Dehumidification Heat Pump
Fig. 11 Cooling Tower Heat Recovery Heat Pump
Fig. 11 Cooling Tower Heat Recovery Heat Pump
Fig. 11 Cooling Tower Heat Recovery Heat Pump
Fig. 11 Cooling Tower Heat Recovery Heat Pump
147 Fig. 12 Effluent Heat Recovery Heat Pump
Fig. 12 Effluent Heat Recovery Heat Pump
Fig. 12 Effluent Heat Recovery Heat Pump
Fig. 12 Effluent Heat Recovery Heat Pump
Fig. 13 Refrigeration Heat Recovery Heat Pump
Fig. 13 Refrigeration Heat Recovery Heat Pump
Fig. 13 Refrigeration Heat Recovery Heat Pump
Fig. 13 Refrigeration Heat Recovery Heat Pump
148 Fig. 14 Closed-Cycle Vapor Compression System
Fig. 14 Closed-Cycle Vapor Compression System
Fig. 14 Closed-Cycle Vapor Compression System
Fig. 14 Closed-Cycle Vapor Compression System
Fig. 15 Recompression of Boiler-Generated Process Steam
Fig. 15 Recompression of Boiler-Generated Process Steam
Fig. 15 Recompression of Boiler-Generated Process Steam
Fig. 15 Recompression of Boiler-Generated Process Steam
Open-Cycle and Semi-Open-Cycle Heat Pump Systems
Open-Cycle and Semi-Open-Cycle Heat Pump Systems
Fig. 16 Single-Effect Heat Pump Evaporator
Fig. 16 Single-Effect Heat Pump Evaporator
Fig. 16 Single-Effect Heat Pump Evaporator
Fig. 16 Single-Effect Heat Pump Evaporator
149 Fig. 17 Multiple-Effect Heat Pump Evaporator
Fig. 17 Multiple-Effect Heat Pump Evaporator
Fig. 17 Multiple-Effect Heat Pump Evaporator
Fig. 17 Multiple-Effect Heat Pump Evaporator
Fig. 18 Distillation Heat Pump System
Fig. 18 Distillation Heat Pump System
Fig. 18 Distillation Heat Pump System
Fig. 18 Distillation Heat Pump System
Heat Recovery Design Principles
Heat Recovery Design Principles
150 Fig. 19 Heat Recovery Heat Pump System in a Rendering Plant
Fig. 19 Heat Recovery Heat Pump System in a Rendering Plant
Fig. 19 Heat Recovery Heat Pump System in a Rendering Plant
Fig. 19 Heat Recovery Heat Pump System in a Rendering Plant
Fig. 20 Semi-Open Cycle Heat Pump in a Textile Plant
Fig. 20 Semi-Open Cycle Heat Pump in a Textile Plant
Fig. 20 Semi-Open-Cycle Heat Pump in a Textile Plant
Fig. 20 Semi-Open-Cycle Heat Pump in a Textile Plant
Applied Heat Recovery Systems
Applied Heat Recovery Systems
Waste Heat Recovery
Waste Heat Recovery
Fig. 21 Heat Recovery Heat Pump
Fig. 21 Heat Recovery Heat Pump
Fig. 21 Heat Recovery Heat Pump
Fig. 21 Heat Recovery Heat Pump
151 Fig. 22 Heat Recovery Chiller with Double-Bundle Condenser
Fig. 22 Heat Recovery Chiller with Double-Bundle Condenser
Fig. 22 Heat Recovery Chiller with Double-Bundle Condenser
Fig. 22 Heat Recovery Chiller with Double-Bundle Condenser
Fig. 23 Heat Recovery Chiller with Storage Tank
Fig. 23 Heat Recovery Chiller with Storage Tank
Fig. 23 Heat Recovery Chiller with Storage Tank
Fig. 23 Heat Recovery Chiller with Storage Tank
Fig. 24 Multistage (Cascade) Heat Transfer System
Fig. 24 Multistage (Cascade) Heat Transfer System
Fig. 24 Multistage (Cascade) Heat Transfer System
Fig. 24 Multistage (Cascade) Heat Transfer System
Water Loop Heat Pump Systems
Water Loop Heat Pump Systems
Description
Description
152 Fig. 25 Heat Loss and Heat Gain for Exterior Zones During Occupied Periods
Fig. 25 Heat Loss and Heat Gain for Exterior Zones During Occupied Periods
Fig. 25 Heat Loss and Heat Gain for Exterior Zones During Occupied Periods
Fig. 25 Heat Loss and Heat Gain for Exterior Zones During Occupied Periods
Fig. 26 Heat Loss and Heat Gain for Interior Zones During Occupied Periods
Fig. 26 Heat Loss and Heat Gain for Interior Zones During Occupied Periods
Fig. 26 Heat Loss and Heat Gain for Interior Zones During Occupied Periods
Fig. 26 Heat Loss and Heat Gain for Interior Zones During Occupied Periods
Fig. 27 Internal Heat Available for Recovery During Occupied Periods
Fig. 27 Internal Heat Available for Recovery During Occupied Periods
Fig. 27 Internal Heat Available for Recovery During Occupied Periods
Fig. 27 Internal Heat Available for Recovery During Occupied Periods
Fig. 28 Heat Recovery System Using Water-to-Air Heat Pumps in a Closed Loop
Fig. 28 Heat Recovery System Using Water-to-Air Heat Pumps in a Closed Loop
Fig. 28 Heat Recovery System Using Water-to-Air Heat Pumps in a Closed Loop
Fig. 28 Heat Recovery System Using Water-to-Air Heat Pumps in a Closed Loop
153 Fig. 29 Closed-Loop Heat Pump System with Thermal Storage and Optional Solar-Assist Collectors
Fig. 29 Closed-Loop Heat Pump System with Thermal Storage and Optional Solar-Assist Collectors
Fig. 29 Closed-Loop Heat Pump System with Thermal Storage and Optional Solar-Assist Collectors
Fig. 29 Closed-Loop Heat Pump System with Thermal Storage and Optional Solar-Assist Collectors
Fig. 30 Secondary Heat Recovery from WLHP System
Fig. 30 Secondary Heat Recovery from WLHP System
Fig. 30 Secondary Heat Recovery from WLHP System
Fig. 30 Secondary Heat Recovery from WLHP System
Design Considerations
Design Considerations
155 Fig. 31 Cooling Tower with Heat Exchanger
Fig. 31 Cooling Tower with Heat Exchanger
Fig. 31 Cooling Tower with Heat Exchanger
Fig. 31 Cooling Tower with Heat Exchanger
Controls
Controls
Advantages of a WLHP System
Advantages of a WLHP System
Limitations of a WLHP System
Limitations of a WLHP System
Balanced Heat Recovery Systems
Balanced Heat Recovery Systems
Definition
Definition
156 Heat Redistribution
Heat Redistribution
Heat Balance Concept
Heat Balance Concept
Heat Balance Studies
Heat Balance Studies
Fig. 32 Major Load Components
Fig. 32 Major Load Components
Fig. 32 Major Load Components
Fig. 32 Major Load Components
157 Fig. 33 Composite Plot of Loads in Figure 32 (Adjust for Internal Motor Heat)
Fig. 33 Composite Plot of Loads in Figure 32 (Adjust for Internal Motor Heat)
Fig. 33 Composite Plot of Loads in Figure 32 (Adjust for Internal Motor Heat)
Fig. 33 Composite Plot of Loads in Figure 32 (Adjust for Internal Motor Heat)
Fig. 34 Non-Heat-Recovery System
Fig. 34 Non-Heat-Recovery System
Fig. 34 Non-Heat-Recovery System
Fig. 34 Non-Heat-Recovery System
General Applications
General Applications
158 Multiple Buildings
Multiple Buildings
References
References
Bibliography
Bibliography
159 I-P_S08_Ch09
I-P_S08_Ch09
Components
Components
Heating and Cooling Units
Heating and Cooling Units
Accessory Equipment
Accessory Equipment
160 Fig. 1 Both
Fig. 1 Both
Fig. 1 Heating and Cooling Components
Fig. 1 Heating and Cooling Components
Ducts
Ducts
161 Duct Sealing
Duct Sealing
Supply and Return Registers and Grilles
Supply and Return Registers and Grilles
Controls
Controls
Design
Design
162 Estimating Heating and Cooling Loads
Estimating Heating and Cooling Loads
Locating Outlets, Returns, Ducts, and Equipment
Locating Outlets, Returns, Ducts, and Equipment
Fig. 2 Both
Fig. 2 Both
Fig. 2 Preferred Return Locations for Various Supply Outlet Positions
Fig. 2 Preferred Return Locations for Various Supply Outlet Positions
163 Table 1 General Characteristics of Supply Outlets
Table 1 General Characteristics of Supply Outlets
Fig. 3 Both
Fig. 3 Both
Fig. 3 Best Compromise Return Locations for Year-Round Heating and Cooling
Fig. 3 Best Compromise Return Locations for Year-Round Heating and Cooling
Determining Heating and Cooling Loads
Determining Heating and Cooling Loads
Selecting Equipment
Selecting Equipment
Determining Airflow Requirements
Determining Airflow Requirements
164 Detailing the Duct Configuration
Detailing the Duct Configuration
Fig. 4 Both
Fig. 4 Both
Fig. 4 Sample Floor Plans for Locating Ductwork in Second Floor of (A) Two-Story House and (B) Townhouse
Fig. 4 Sample Floor Plans for Locating Ductwork in Second Floor of (A) Two-Story House and (B) Townhouse
165 Fig. 5 Both
Fig. 5 Both
Fig. 5 Sample Floor Plans for One-Story House with (A) Dropped Ceilings, (B) Ducts in Conditioned Spaces, and (C) Right-Sized Air Distribution in Conditioned Spaces
Fig. 5 Sample Floor Plans for One-Story House with (A) Dropped Ceilings, (B) Ducts in Conditioned Spaces, and (C) Right-Sized Air Distribution in Conditioned Spaces
Detailing the Distribution Design
Detailing the Distribution Design
166 Fig. 6 Both
Fig. 6 Both
Fig. 6 (A) Ducts in Unconditioned Spaces and (B) Standard Air Distribution System in Unconditioned Spaces
Fig. 6 (A) Ducts in Unconditioned Spaces and (B) Standard Air Distribution System in Unconditioned Spaces
Table 2 Recommended Division of Duct Pressure Loss
Table 2 Recommended Division of Duct Pressure Loss
Duct Design Recommendations
Duct Design Recommendations
167 Zone Control for Small Systems
Zone Control for Small Systems
Duct Sizing for Zone Damper Systems
Duct Sizing for Zone Damper Systems
Box Plenum Systems Using Flexible Duct
Box Plenum Systems Using Flexible Duct
Embedded Loop Ducts
Embedded Loop Ducts
168 Fig. 7 Both
Fig. 7 Both
Fig. 7 Entrance Fittings to Eliminate Unstable Airflow in Box Plenum
Fig. 7 Entrance Fittings to Eliminate Unstable Airflow in Box Plenum
Fig. 8 IP
Fig. 8 IP
Fig. 8 Dimensions for Efficient Box Plenum
Fig. 8 Dimensions for Efficient Box Plenum
Selecting Supply and Return Grilles and Registers
Selecting Supply and Return Grilles and Registers
Commercial Systems
Commercial Systems
Air Distribution in Small Commercial Buildings
Air Distribution in Small Commercial Buildings
169 Controlling Airflow in New Buildings
Controlling Airflow in New Buildings
Testing for Duct Efficiency
Testing for Duct Efficiency
Data Inputs
Data Inputs
Data Output
Data Output
System Performance
System Performance
170 “HOUSE” Dynamic Simulation Model
“HOUSE” Dynamic Simulation Model
System Performance Factors
System Performance Factors
Equipment-Component Efficiency Factors
Equipment-Component Efficiency Factors
Equipment-System Performance Factors
Equipment-System Performance Factors
Equipment-Load Interaction Factors
Equipment-Load Interaction Factors
Energy Cost Factors
Energy Cost Factors
Implications
Implications
171 Table 3 Definitions of System Performance Factors
Table 3 Definitions of System Performance Factors
172 System Performance Examples
System Performance Examples
Table 4 System Performance Examples
Table 4 System Performance Examples
Table 5 Base Case Assumptions for Simulation Predictions
Table 5 Base Case Assumptions for Simulation Predictions
173 Table 6 Effect of Furnace Type on Annual Heating Performance
Table 6 Effect of Furnace Type on Annual Heating Performance
Table 7 Effect of Climate and Night Setback on Annual Heating Performance
Table 7 Effect of Climate and Night Setback on Annual Heating Performance
Effect of Furnace Type
Effect of Furnace Type
Effect of Climate and Night Setback
Effect of Climate and Night Setback
Effect of Furnace Sizing
Effect of Furnace Sizing
174 Table 8 Effect of Sizing, Setback, and Design Parameters on Annual Heating Performance-Conventional, Natural-Draft Furnace
Table 8 Effect of Sizing, Setback, and Design Parameters on Annual Heating Performance-Conventional, Natural-Draft Furnace
Table 9 Effect of Furnace Sizing on Annual Heating Performance-Condensing Furnace with Preheat
Table 9 Effect of Furnace Sizing on Annual Heating Performance-Condensing Furnace with Preheat
Effects of Furnace Sizing and Night Setback
Effects of Furnace Sizing and Night Setback
Table 10 Effect of Duct Treatment on System Performance
Table 10 Effect of Duct Treatment on System Performance
Table 11 Effect of Duct Treatment and Basement Configuration on System Performance
Table 11 Effect of Duct Treatment and Basement Configuration on System Performance
175 References
References
Bibliography
Bibliography
178 I-P_S08_Ch10
I-P_S08_Ch10
Advantages
Advantages
Fundamentals
Fundamentals
179 Table 1 Properties of Saturated Steam
Table 1 Properties of Saturated Steam
Effects of Water , Air , and Gases
Effects of Water , Air , and Gases
Heat Transfer
Heat Transfer
Basic Steam System Design
Basic Steam System Design
Steam Source
Steam Source
180 Boilers
Boilers
Heat Recovery and Waste Heat Boilers
Heat Recovery and Waste Heat Boilers
Fig. 1 Exhaust Heat Boiler
Fig. 1 Exhaust Heat Boiler
Fig. 1 Exhaust Heat Boiler
Fig. 1 Exhaust Heat Boiler
Heat Exchangers
Heat Exchangers
Boiler Connections
Boiler Connections
Supply Piping
Supply Piping
Return Piping
Return Piping
181 Fig. 2 Typical Boiler Connections
Fig. 2 Typical Boiler Connections
Fig. 2 Typical Boiler Connections
Fig. 2 Typical Boiler Connections
Fig. 3 Boiler with Gravity Return
Fig. 3 Boiler with Gravity Return
Fig. 3 Boiler with Gravity Return
Fig. 3 Boiler with Gravity Return
Design Steam Pressure
Design Steam Pressure
182 Piping
Piping
Supply Piping Design Considerations
Supply Piping Design Considerations
Fig. 4 Method of Dripping Steam Mains
Fig. 4 Method of Dripping Steam Mains
Fig. 4 Method of Dripping Steam Mains
Fig. 4 Method of Dripping Steam Mains
Fig. 5 Trap Discharging to Overhead Return
Fig. 5 Trap Discharging to Overhead Return
Fig. 5 Trap Discharging to Overhead Return
Fig. 5 Trap Discharging to Overhead Return
183 Fig. 6 Trapping Strainers
Fig. 6 Trapping Strainers
Fig. 6 Trapping Strainers
Fig. 6 Trapping Strainers
Terminal Equipment Piping Design Considerations
Terminal Equipment Piping Design Considerations
Fig. 7 Trapping Multiple Coils
Fig. 7 Trapping Multiple Coils
Fig. 7 Trapping Multiple Coils
Fig. 7 Trapping Multiple Coils
Return Piping Design Considerations
Return Piping Design Considerations
Fig. 8 Recommended Steam Trap Piping
Fig. 8 Recommended Steam Trap Piping
Fig. 8 Recommended Steam Trap Piping
Fig. 8 Recommended Steam Trap Piping
Condensate Removal from Temperature-Regulated Equipment
Condensate Removal from Temperature-Regulated Equipment
184 Fig. 9 Trapping Temperature-Regulated Coils
Fig. 9 Trapping Temperature-Regulated Coils
Fig. 9 Trapping Temperature-Regulated Coils
Fig. 9 Trapping Temperature-Regulated Coils
Steam Traps
Steam Traps
Thermostatic Traps
Thermostatic Traps
185 Fig. 10 Thermostatic Traps
Fig. 10 Thermostatic Traps
Fig. 10 Thermostatic Traps
Fig. 10 Thermostatic Traps
Mechanical Traps
Mechanical Traps
186 Kinetic Traps
Kinetic Traps
Pressure-Reducing Valves
Pressure-Reducing Valves
Installation
Installation
Fig. 11 Pressure-Reducing Valve Connections- Low Pressure
Fig. 11 Pressure-Reducing Valve Connections- Low Pressure
Fig. 11 Pressure-Reducing Valve Connections- Low Pressure
Fig. 11 Pressure-Reducing Valve Connections- Low Pressure
187 Fig. 12 Pressure-Reducing Valve Connections- High Pressure
Fig. 12 Pressure-Reducing Valve Connections- High Pressure
Fig. 12 Pressure-Reducing Valve Connections- High Pressure
Fig. 12 Pressure-Reducing Valve Connections- High Pressure
Fig. 13 Steam Supply
Fig. 13 Steam Supply
Fig. 13 Steam Supply
Fig. 13 Steam Supply
Fig. 14 Two-Stage Pressure-Regulating Valve
Fig. 14 Two-Stage Pressure-Regulating Valve
Fig. 14 Two-Stage Pressure-Regulating Valve
Fig. 14 Two-Stage Pressure-Regulating Valve
Valve Size Selection
Valve Size Selection
188 Terminal Equipment
Terminal Equipment
Selection
Selection
Natural Convection Units
Natural Convection Units
Forced-Convection Units
Forced-Convection Units
Convection Steam Heating
Convection Steam Heating
One-Pipe Steam Heating Systems
One-Pipe Steam Heating Systems
189 Fig. 15 One-Pipe System
Fig. 15 One-Pipe System
Fig. 15 One-Pipe System
Fig. 15 One-Pipe System
Two-Pipe Steam Heating Systems
Two-Pipe Steam Heating Systems
Fig. 16 Two-Pipe System
Fig. 16 Two-Pipe System
Fig. 16 Two-Pipe System
Fig. 16 Two-Pipe System
Steam Distribution
Steam Distribution
190 Fig. 17 Inlet Orifice
Fig. 17 Inlet Orifice
Fig. 17 Inlet Orifice
Fig. 17 Inlet Orifice
Fig. 18 Orifice Capacities for Different Pressure Differentials
Fig. 18 Orifice Capacities for Different Pressure Differentials
Fig. 18 Orifice Capacities for Different Pressure Differentials
Fig. 18 Orifice Capacities for Different Pressure Differentials
Temperature Control
Temperature Control
191 Table 2 Pressure Differential Temperature Control
Table 2 Pressure Differential Temperature Control
Heat Recovery
Heat Recovery
Fig. 19 Flash Steam
Fig. 19 Flash Steam
Fig. 19 Flash Steam
Fig. 19 Flash Steam
Fig. 20 Flash Tank Diameters
Fig. 20 Flash Tank Diameters
Fig. 20 Flash Tank Diameters
Fig. 20 Flash Tank Diameters
Flash Steam
Flash Steam
192 Fig. 21 Vertical Flash Tank
Fig. 21 Vertical Flash Tank
Fig. 21 Vertical Flash Tank
Fig. 21 Vertical Flash Tank
Direct Heat Recovery
Direct Heat Recovery
Combined Steam and Water Systems
Combined Steam and Water Systems
Commissioning
Commissioning
References
References
193 I-P_S08_Ch11
I-P_S08_Ch11
Applicability
Applicability
Components
Components
Fig. 1 Major Components of District Heating System
Fig. 1 Major Components of District Heating System
Fig. 1 Major Components of District Heating System
Fig. 1 Major Components of District Heating System
Benefits
Benefits
Environmental Benefits
Environmental Benefits
194 Consumer Economic Benefits
Consumer Economic Benefits
Producer Economics
Producer Economics
Initial Capital Investment
Initial Capital Investment
195 Central Plant
Central Plant
Heating and Cooling Production
Heating and Cooling Production
Heating Medium
Heating Medium
Heat Production
Heat Production
196 Cooling Supply
Cooling Supply
Thermal Storage
Thermal Storage
Auxiliaries
Auxiliaries
197 Fig. 2 Layout for Hot Water/Chilled Water Plant
Fig. 2 Layout for Hot Water/Chilled Water Plant
Fig. 2 Layout for Hot-Water/Chilled-Water Plant
Fig. 2 Layout for Hot-Water/Chilled-Water Plant
Distribution Design Considerations
Distribution Design Considerations
Constant Flow
Constant Flow
Fig. 3 Constant Flow Primary Distribution with Secondary Pumping
Fig. 3 Constant Flow Primary Distribution with Secondary Pumping
Fig. 3 Constant-Flow Primary Distribution with Secondary Pumping
Fig. 3 Constant-Flow Primary Distribution with Secondary Pumping
Variable Flow
Variable Flow
198 Fig. 4 Variable Flow Primary/Secondary Systems
Fig. 4 Variable Flow Primary/Secondary Systems
Fig. 4 Variable-Flow Primary/Secondary Systems
Fig. 4 Variable-Flow Primary/Secondary Systems
Design Guidelines
Design Guidelines
Distribution System
Distribution System
Hydraulic Considerations
Hydraulic Considerations
Objectives of Hydraulic Design
Objectives of Hydraulic Design
199 Water Hammer
Water Hammer
Pressure Losses
Pressure Losses
Pipe Sizing
Pipe Sizing
Network Calculations
Network Calculations
Condensate Drainage and Return
Condensate Drainage and Return
200 Thermal Considerations
Thermal Considerations
Thermal Design Conditions
Thermal Design Conditions
Thermal Properties of Pipe Insulation and Soil
Thermal Properties of Pipe Insulation and Soil
Table 1 Comparison of Commonly Used Insulations in Underground Piping Systems
Table 1 Comparison of Commonly Used Insulations in Underground Piping Systems
201 Table 2 Effect of Moisture on Underground Piping System Insulations
Table 2 Effect of Moisture on Underground Piping System Insulations
Table 3 Soil Thermal Conductivities
Table 3 Soil Thermal Conductivities
Methods of Heat Transfer Analysis
Methods of Heat Transfer Analysis
202 Calculation of Undisturbed Soil Temperatures
Calculation of Undisturbed Soil Temperatures
203 Convective Heat Transfer at Ground Surface
Convective Heat Transfer at Ground Surface
Single Uninsulated Buried Pipe
Single Uninsulated Buried Pipe
Fig. 5 Single Uninsulated Buried Pipe
Fig. 5 Single Uninsulated Buried Pipe
Fig. 5 Single Uninsulated Buried Pipe
Fig. 5 Single Uninsulated Buried Pipe
Single Buried Insulated Pipe
Single Buried Insulated Pipe
204 Fig. 6 Single Buried Insulated Pipe
Fig. 6 Single Buried Insulated Pipe
Fig. 6 Single Insulated Buried Pipe
Fig. 6 Single Insulated Buried Pipe
Single Buried Pipe in Conduit with Air Space
Single Buried Pipe in Conduit with Air Space
Single Buried Pipe with Composite Insulation
Single Buried Pipe with Composite Insulation
205 Two Pipes Buried in Common Conduit with Air Space
Two Pipes Buried in Common Conduit with Air Space
Fig. 7 Two Pipes Buried in Common Conduit with Air Space
Fig. 7 Two Pipes Buried in Common Conduit with Air Space
Fig. 7 Two Pipes Buried in Common Conduit with Air Space
Fig. 7 Two Pipes Buried in Common Conduit with Air Space
206 Two Buried Pipes or Conduits
Two Buried Pipes or Conduits
Fig. 8 Two Buried Pipes or Conduits
Fig. 8 Two Buried Pipes or Conduits
Fig. 8 Two Buried Pipes or Conduits
Fig. 8 Two Buried Pipes or Conduits
207 Pipes in Buried Trenches or Tunnels
Pipes in Buried Trenches or Tunnels
Fig. 9 Pipes in Buried Trenches or Tunnels
Fig. 9 Pipes in Buried Trenches or Tunnels
Fig. 9 Pipes in Buried Trenches or Tunnels
Fig. 9 Pipes in Buried Trenches or Tunnels
208 Pipes in Shallow Trenches
Pipes in Shallow Trenches
Buried Pipes with Other Geometries
Buried Pipes with Other Geometries
209 Pipes in Air
Pipes in Air
Economical Thickness for Pipe Insulation
Economical Thickness for Pipe Insulation
210 Expansion Provisions
Expansion Provisions
Pipe Supports, Guides, and Anchors
Pipe Supports, Guides, and Anchors
Distribution System Construction
Distribution System Construction
211 Piping Materials and Standards
Piping Materials and Standards
Aboveground Systems
Aboveground Systems
212 Underground Systems
Underground Systems
Fig. 10 Walk-Through Tunnel
Fig. 10 Walk-Through Tunnel
Fig. 10 Walk-Through Tunnel
Fig. 10 Walk-Through Tunnel
213 Fig. 11 Concrete Surface Trench
Fig. 11 Concrete Surface Trench
Fig. 11 Concrete Surface Trench
Fig. 11 Concrete Surface Trench
Fig. 12 Deep-Bury Small Tunnel
Fig. 12 Deep-Bury Small Tunnel
Fig. 12 Deep-Bury Small Tunnel
Fig. 12 Deep-Bury Small Tunnel
Fig. 13 Poured Insulation System
Fig. 13 Poured Insulation System
Fig. 13 Poured Insulation System
Fig. 13 Poured Insulation System
214 Fig. 14 Field Installed Direct-Buried Cellular Glass Insulated System
Fig. 14 Field Installed Direct-Buried Cellular Glass Insulated System
Fig. 14 Field-Installed, Direct-Buried Cellular Glass Insulated System
Fig. 14 Field-Installed, Direct-Buried Cellular Glass Insulated System
Conduits
Conduits
Fig. 15 Conduit System Components
Fig. 15 Conduit System Components
Fig. 15 Conduit System Components
Fig. 15 Conduit System Components
215 Fig. 16 Corrosion Rate in Aggressive Environment Similar to Mild Steel Casings in Soil
Fig. 16 Corrosion Rate in Aggressive Environment Similar to Mild Steel Casings in Soil
Fig. 16 Corrosion Rate in Aggressive Environment Similar to Mild Steel Casings in Soil
Fig. 16 Corrosion Rate in Aggressive Environment Similar to Mild Steel Casings in Soil
Fig. 17 Conduit System with Annular Air Space and Single Carrier Pipe
Fig. 17 Conduit System with Annular Air Space and Single Carrier Pipe
Fig. 17 Conduit System with Annular Air Space and Single Carrier Pipe
Fig. 17 Conduit System with Annular Air Space and Single Carrier Pipe
Fig. 18 Conduit System with Two Carrier Pipes and Annular Air Space
Fig. 18 Conduit System with Two Carrier Pipes and Annular Air Space
Fig. 18 Conduit System with Two Carrier Pipes and Annular Air Space
Fig. 18 Conduit System with Two Carrier Pipes and Annular Air Space
Fig. 19 Conduit System with Single Carrier Pipe and No Air Space
Fig. 19 Conduit System with Single Carrier Pipe and No Air Space
Fig. 19 Conduit System with Single Carrier Pipe and No Air Space (WSL)
Fig. 19 Conduit System with Single Carrier Pipe and No Air Space (WSL)
216 Fig. 20 Conduit Casing Temperature Versus Soil Thermal Conductivity
Fig. 20 Conduit Casing Temperature Versus Soil Thermal Conductivity
Fig. 20 Conduit Casing Temperature Versus Soil Thermal Conductivity
Fig. 20 Conduit Casing Temperature Versus Soil Thermal Conductivity
Cathodic Protection of Direct-Buried Conduits
Cathodic Protection of Direct-Buried Conduits
217 Leak Detection
Leak Detection
Valve Vaults and Entry Pits
Valve Vaults and Entry Pits
219 Consumer Interconnections
Consumer Interconnections
Direct Connection
Direct Connection
Fig. 21 Direct Connection of Building System to District Hot Water
Fig. 21 Direct Connection of Building System to District Hot Water
Fig. 21 Direct Connection of Building System to District Hot Water
Fig. 21 Direct Connection of Building System to District Hot Water
220 Indirect Connection
Indirect Connection
Components
Components
Heat Exchangers
Heat Exchangers
Fig. 22 Basic Heating System Schematic
Fig. 22 Basic Heating System Schematic
Fig. 22 Basic Heating-System Schematic
Fig. 22 Basic Heating-System Schematic
221 Flow Control Devices
Flow Control Devices
Instrumentation
Instrumentation
Controller
Controller
222 Pressure Control Devices
Pressure Control Devices
Fig. 23 District/Building Interconnection with Heat Recovery Steam System
Fig. 23 District/Building Interconnection with Heat Recovery Steam System
Fig. 23 District/Building Interconnection with Heat Recovery Steam System
Fig. 23 District/Building Interconnection with Heat Recovery Steam System
Heating Connections
Heating Connections
Steam Connections
Steam Connections
Fig. 24 District/Building Interconnection with Heat Exchange Steam System
Fig. 24 District/Building Interconnection with Heat Exchange Steam System
Fig. 24 District/Building Interconnection with Heat Exchange Steam System
Fig. 24 District/Building Interconnection with Heat Exchange Steam System
223 Fig. 25 District/Building Indirect Interconnection Hot Water System
Fig. 25 District/Building Indirect Interconnection Hot Water System
Fig. 25 District/Building Indirect Interconnection Hot-Water System
Fig. 25 District/Building Indirect Interconnection Hot-Water System
Fig. 26 District/Building Direct Interconnection Hot Water System
Fig. 26 District/Building Direct Interconnection Hot Water System
Fig. 26 District/Building Direct Interconnection Hot-Water System
Fig. 26 District/Building Direct Interconnection Hot-Water System
Hot-Water Connections
Hot-Water Connections
Fig. 27 Building Indirect Connection for Both Heating and Domestic Hot Water
Fig. 27 Building Indirect Connection for Both Heating and Domestic Hot Water
Fig. 27 Building Indirect Connection for Both Heating and Domestic Hot Water
Fig. 27 Building Indirect Connection for Both Heating and Domestic Hot Water
224 Building Conversion to District Heating
Building Conversion to District Heating
Table 4 Conversion Suitability of Heating System by Type
Table 4 Conversion Suitability of Heating System by Type
Chilled-Water Connections
Chilled-Water Connections
Fig. 28 Typical Chilled Water Piping and Metering Diagram
Fig. 28 Typical Chilled Water Piping and Metering Diagram
Fig. 28 Typical Chilled-Water Piping and Metering Diagram
Fig. 28 Typical Chilled-Water Piping and Metering Diagram
225 Temperature Differential Control
Temperature Differential Control
Metering
Metering
226 Table 5 Flowmeter Characteristics
Table 5 Flowmeter Characteristics
Operation and Maintenance
Operation and Maintenance
References
References
227 Bibliography
Bibliography
228 I-P_S08_Ch12
I-P_S08_Ch12
Principles
Principles
Temperature Classifications
Temperature Classifications
229 Closed Water Systems
Closed Water Systems
Fig. 1 Hydronic System-Fundamental Components
Fig. 1 Hydronic System-Fundamental Components
Fig. 1 Fundamental Components of Hydronic System
Fig. 1 Fundamental Components of Hydronic System
Method of Design
Method of Design
Thermal Components
Thermal Components
Loads
Loads
230 Terminal Heating and Cooling Units
Terminal Heating and Cooling Units
231 Source
Source
Expansion Chamber
Expansion Chamber
232 Fig. 2 Henry’s Constant Versus Temperature for Air and Water
Fig. 2 Henry’s Constant Versus Temperature for Air and Water
Fig. 2 Henry’s Constant Versus Temperature for Air and Water
Fig. 2 Henry’s Constant Versus Temperature for Air and Water
Fig. 3 Solubility Versus Temperature and Pressure for Air/Water Solutions
Fig. 3 Solubility Versus Temperature and Pressure for Air/Water Solutions
Fig. 3 Solubility Versus Temperature and Pressure for Air/Water Solutions
Fig. 3 Solubility Versus Temperature and Pressure for Air/Water Solutions
233 Hydraulic Components
Hydraulic Components
Pump or Pumping System
Pump or Pumping System
Fig. 4 Pump Curve and System Curve
Fig. 4 Pump Curve and System Curve
Fig. 4 Example of Manufacturer’s Published Pump Curve
Fig. 4 Example of Manufacturer’s Published Pump Curve
Fig. 5 Shift of System Curve due to Circuit Unbalance
Fig. 5 Shift of System Curve due to Circuit Unbalance
Fig. 5 Pump Curve and System Curve
Fig. 5 Pump Curve and System Curve
Fig. 6 Operating Conditions for Parallel Pump Installation
Fig. 6 Operating Conditions for Parallel Pump Installation
Fig. 6 Shift of System Curve Caused by Circuit Unbalance
Fig. 6 Shift of System Curve Caused by Circuit Unbalance
234 Fig. 7 General Pump Operating Condition Effects
Fig. 7 General Pump Operating Condition Effects
Fig. 7 General Pump Operating Condition Effects
Fig. 7 General Pump Operating Condition Effects
Fig. 8 Operating Conditions for Series Pump Installation
Fig. 8 Operating Conditions for Series Pump Installation
Fig. 8 Operating Conditions for Parallel-Pump Installation
Fig. 8 Operating Conditions for Parallel-Pump Installation
Fig. 9 Operating Conditions for Series Pump Installation
Fig. 9 Operating Conditions for Series Pump Installation
Fig. 9 Operating Conditions for Series-Pump Installation
Fig. 9 Operating Conditions for Series-Pump Installation
235 Fig. 10 Compound Pumping (Primary-Secondary Pumping)
Fig. 10 Compound Pumping (Primary-Secondary Pumping)
Fig. 10 Compound Pumping (Primary-Secondary Pumping)
Fig. 10 Compound Pumping (Primary-Secondary Pumping)
Variable-Speed Pumping Application
Variable-Speed Pumping Application
236 Fig. 11 Example of Variable-Speed Pump System Schematic
Fig. 11 Example of Variable-Speed Pump System Schematic
Fig. 11 Example of Variable-Speed Pump System Schematic
Fig. 11 Example of Variable-Speed Pump System Schematic
Fig. 12 Example of Variable-Speed Pump and System Curves
Fig. 12 Example of Variable-Speed Pump and System Curves
Fig. 12 Example of Variable-Speed Pump and System Curves
Fig. 12 Example of Variable-Speed Pump and System Curves
Fig. 13 System Curve with System Static Pressure (Control Area)
Fig. 13 System Curve with System Static Pressure (Control Area)
Fig. 13 System Curve with System Static Pressure (Control Area)
Fig. 13 System Curve with System Static Pressure (Control Area)
237 Pump Connection
Pump Connection
Distribution System
Distribution System
238 Fig. 14 Typical System Curves for Closed System
Fig. 14 Typical System Curves for Closed System
Fig. 14 Typical System Curves for Closed System
Fig. 14 Typical System Curves for Closed System
Expansion Chamber
Expansion Chamber
Fig. 15 Tank Pressure Related to “System” Pressure
Fig. 15 Tank Pressure Related to “System” Pressure
Fig. 15 Tank Pressure Related to System Pressure
Fig. 15 Tank Pressure Related to System Pressure
Fig. 16 Effect of Expansion Tank Location with Respect to Pump Pressure
Fig. 16 Effect of Expansion Tank Location with Respect to Pump Pressure
Fig. 16 Effect of Expansion Tank Location with Respect to Pump Pressure
Fig. 16 Effect of Expansion Tank Location with Respect to Pump Pressure
Piping Circuits
Piping Circuits
239 Fig. 17 Flow Diagram of Simple Series Circuit
Fig. 17 Flow Diagram of Simple Series Circuit
Fig. 17 Flow Diagram of Simple Series Circuit
Fig. 17 Flow Diagram of Simple Series Circuit
Fig. 18 Series Loop System
Fig. 18 Series Loop System
Fig. 18 Series Loop System
Fig. 18 Series Loop System
Fig. 19 One-Pipe Diverting Tee System
Fig. 19 One-Pipe Diverting Tee System
Fig. 19 One-Pipe Diverting Tee System
Fig. 19 One-Pipe Diverting Tee System
Fig. 20 Series Circuit with Load Pumps
Fig. 20 Series Circuit with Load Pumps
Fig. 20 Series Circuit with Load Pumps
Fig. 20 Series Circuit with Load Pumps
240 Fig. 21 Direct- and Reverse-Return Two-Pipe Systems
Fig. 21 Direct- and Reverse-Return Two-Pipe Systems
Fig. 21 Direct- and Reverse-Return Two-Pipe Systems
Fig. 21 Direct- and Reverse-Return Two-Pipe Systems
Capacity Control of Load System
Capacity Control of Load System
Fig. 22 Load Control Valves
Fig. 22 Load Control Valves
Fig. 22 Load Control Valves
Fig. 22 Load Control Valves
241 Fig. 23 System Flow with Two-Way and Three-Way Valves
Fig. 23 System Flow with Two-Way and Three-Way Valves
Fig. 23 System Flow with Two-Way and Three-Way Valves
Fig. 23 System Flow with Two-Way and Three-Way Valves
Sizing Control Valves
Sizing Control Valves
Fig. 24 Chilled-Water Coil Heat Transfer Characteristic
Fig. 24 Chilled-Water Coil Heat Transfer Characteristic
Fig. 24 Chilled-Water Coil Heat Transfer Characteristic
Fig. 24 Chilled-Water Coil Heat Transfer Characteristic
Fig. 25 Equal-Percentage Valve Characteristic with Authority
Fig. 25 Equal-Percentage Valve Characteristic with Authority
Fig. 25 Equal-Percentage Valve Characteristic with Authority
Fig. 25 Equal-Percentage Valve Characteristic with Authority
242 Fig. 26 Control Valve and Coil Response, Inherent and 50% Authority
Fig. 26 Control Valve and Coil Response, Inherent and 50% Authority
Fig. 26 Control Valve and Coil Response, Inherent and 50% Authority
Fig. 26 Control Valve and Coil Response, Inherent and 50% Authority
Fig. 27 Control Valve and Coil Response, 33% Authority
Fig. 27 Control Valve and Coil Response, 33% Authority
Fig. 27 Control Valve and Coil Response, 33% Authority
Fig. 27 Control Valve and Coil Response, 33% Authority
Fig. 28 Coil Valve and Coil Response, 10% Authority
Fig. 28 Coil Valve and Coil Response, 10% Authority
Fig. 28 Coil Valve and Coil Response, 10% Authority
Fig. 28 Coil Valve and Coil Response, 10% Authority
243 Fig. 29 Load Pumps with Valve Control
Fig. 29 Load Pumps with Valve Control
Fig. 29 Load Pumps with Valve Control
Fig. 29 Load Pumps with Valve Control
Alternatives to Control Valves
Alternatives to Control Valves
Fig. 30 Schematic of Variable-Speed Pump Coil Control
Fig. 30 Schematic of Variable-Speed Pump Coil Control
Fig. 30 Schematic of Variable-Speed Pump Coil Control
Fig. 30 Schematic of Variable-Speed Pump Coil Control
Low-Temperature Heating Systems
Low-Temperature Heating Systems
Nonresidential Heating Systems
Nonresidential Heating Systems
244 Fig. 31 Example of Series-Connected Loading
Fig. 31 Example of Series-Connected Loading
Fig. 31 Example of Series-Connected Loading
Fig. 31 Example of Series-Connected Loading
Fig. 32 Heat Emission Versus Flow Characteristic of Typical Hot Water Heating Coil
Fig. 32 Heat Emission Versus Flow Characteristic of Typical Hot Water Heating Coil
Fig. 32 Heat Emission Versus Flow Characteristic of Typical Hot Water Heating Coil
Fig. 32 Heat Emission Versus Flow Characteristic of Typical Hot Water Heating Coil
Chilled-Water Systems
Chilled-Water Systems
Table 1 Chilled-Water Coil Performance
Table 1 Chilled-Water Coil Performance
245 Fig. 33 Generic Chilled-Water Coil Heat Transfer Characteristic
Fig. 33 Generic Chilled-Water Coil Heat Transfer Characteristic
Fig. 33 Generic Chilled-Water Coil Heat Transfer Characteristic
Fig. 33 Generic Chilled-Water Coil Heat Transfer Characteristic
Fig. 34 Recommendations for Coil Flow Tolerance to Maintain 97.5% Design Heat Transfer
Fig. 34 Recommendations for Coil Flow Tolerance to Maintain 97.5% Design Heat Transfer
Fig. 34 Recommendations for Coil Flow Tolerance to Maintain 97% Design Heat Transfer
Fig. 34 Recommendations for Coil Flow Tolerance to Maintain 97% Design Heat Transfer
246 Fig. 35 Constant Flow Chilled Water System
Fig. 35 Constant Flow Chilled Water System
Fig. 35 Constant-Flow Chilled-Water System
Fig. 35 Constant-Flow Chilled-Water System
Fig. 36 Variable Flow Chilled Water System
Fig. 36 Variable Flow Chilled Water System
Fig. 36 Variable-Flow Chilled-Water System
Fig. 36 Variable-Flow Chilled-Water System
Dual-Temperature Systems
Dual-Temperature Systems
Two-Pipe Systems
Two-Pipe Systems
Fig. 37 Simplified Diagram of Two-Pipe System
Fig. 37 Simplified Diagram of Two-Pipe System
Fig. 37 Simplified Diagram of Two-Pipe System
Fig. 37 Simplified Diagram of Two-Pipe System
247 Four-Pipe Common Load Systems
Four-Pipe Common Load Systems
Fig. 38 Four-Pipe Common Load System
Fig. 38 Four-Pipe Common Load System
Fig. 38 Four-Pipe Common Load System
Fig. 38 Four-Pipe Common Load System
Four-Pipe Independent Load Systems
Four-Pipe Independent Load Systems
Fig. 39 Four-Pipe Independent Load System
Fig. 39 Four-Pipe Independent Load System
Fig. 39 Four-Pipe Independent Load System
Fig. 39 Four-Pipe Independent Load System
Other Design Considerations
Other Design Considerations
Makeup and Fill Water Systems
Makeup and Fill Water Systems
Safety Relief Valves
Safety Relief Valves
Fig. 40 Typical Makeup Water and Expansion Tank Piping Configuration for Plain Steel Expansion Tank
Fig. 40 Typical Makeup Water and Expansion Tank Piping Configuration for Plain Steel Expansion Tank
Fig. 40 Typical Makeup Water and Expansion Tank Piping Configuration for Plain Steel Expansion Tank
Fig. 40 Typical Makeup Water and Expansion Tank Piping Configuration for Plain Steel Expansion Tank
248 Fig. 41 Pressure Increase Resulting from Thermal Expansion as Function of Temperature Increase
Fig. 41 Pressure Increase Resulting from Thermal Expansion as Function of Temperature Increase
Fig. 41 Pressure Increase Resulting from Thermal Expansion as Function of Temperature Increase
Fig. 41 Pressure Increase Resulting from Thermal Expansion as Function of Temperature Increase
Air Elimination
Air Elimination
Drain and Shutoff
Drain and Shutoff
Balance Fittings
Balance Fittings
249 Pitch
Pitch
Strainers
Strainers
Thermometers
Thermometers
Flexible Connectors and Pipe Expansion Compensation
Flexible Connectors and Pipe Expansion Compensation
Gage Cocks
Gage Cocks
Insulation
Insulation
Condensate Drains
Condensate Drains
Common Pipe
Common Pipe
Other Design Procedures
Other Design Procedures
Preliminary Equipment Layout
Preliminary Equipment Layout
Fig. 12 Combined Coil/Fill Evaporative Condenser
Fig. 12 Combined Coil/Fill Evaporative Condenser
250 Final Pipe Sizing and Pressure Drop Determination
Final Pipe Sizing and Pressure Drop Determination
Freeze Prevention
Freeze Prevention
Antifreeze Solutions
Antifreeze Solutions
Effect on Heat Transfer and Flow
Effect on Heat Transfer and Flow
Effect on Heat Source or Chiller
Effect on Heat Source or Chiller
251 Fig. 42 Example of Effect of Aqueous Ethylene Glycol Solutions on Heat Exchanger Output
Fig. 42 Example of Effect of Aqueous Ethylene Glycol Solutions on Heat Exchanger Output
Fig. 42 Example of Effect of Aqueous Ethylene Glycol Solutions on Heat Exchanger Output
Fig. 42 Example of Effect of Aqueous Ethylene Glycol Solutions on Heat Exchanger Output
Effect on Terminal Units
Effect on Terminal Units
Effect on Pump Performance
Effect on Pump Performance
Fig. 43 Effect of Viscosity on Pump Characteristics
Fig. 43 Effect of Viscosity on Pump Characteristics
Fig. 43 Effect of Viscosity on Pump Characteristics
Fig. 43 Effect of Viscosity on Pump Characteristics
Fig. 44 Pressure Drop Correction for Glycol Solutions
Fig. 44 Pressure Drop Correction for Glycol Solutions
Fig. 44 Pressure Drop Correction for Glycol Solutions
Fig. 44 Pressure Drop Correction for Glycol Solutions
Effect on Piping Pressure Loss
Effect on Piping Pressure Loss
Installation and Maintenance
Installation and Maintenance
252 References
References
Bibliography
Bibliography
253 I-P_S08_Ch13
I-P_S08_Ch13
Once-Through City Water Systems
Once-Through City Water Systems
Fig. 1 Condenser Connections for Once-Through City Water System
Fig. 1 Condenser Connections for Once-Through City Water System
Fig. 1 Condenser Connections for Once-Through City Water System
Fig. 1 Condenser Connections for Once-Through City Water System
Open Cooling Tower Systems
Open Cooling Tower Systems
254 Fig. 2 Cooling Tower Piping System
Fig. 2 Cooling Tower Piping System
Fig. 2 Cooling Tower Piping System
Fig. 2 Cooling Tower Piping System
Air and Vapor Precautions
Air and Vapor Precautions
Piping Practice
Piping Practice
Fig. 3 Schematic Piping Layout Showing Static and Suction Head
Fig. 3 Schematic Piping Layout Showing Static and Suction Head
Fig. 3 Schematic Piping Layout Showing Static and Suction Head
Fig. 3 Schematic Piping Layout Showing Static and Suction Head
Water Treatment
Water Treatment
255 Freeze Protection
Freeze Protection
Fig. 4 Cooling Tower Piping to Avoid Freeze-Up
Fig. 4 Cooling Tower Piping to Avoid Freeze-Up
Fig. 4 Cooling Tower Piping to Avoid Freeze-Up
Fig. 4 Cooling Tower Piping to Avoid Freeze-Up
Low-Temperature (Water Economizer) Systems
Low-Temperature (Water Economizer) Systems
Fig. 5 Closed-Circuit Cooler System
Fig. 5 Closed-Circuit Cooler System
Fig. 5 Closed-Circuit Cooler System
Fig. 5 Closed-Circuit Cooler System
Closed-Circuit Evaporative Coolers
Closed-Circuit Evaporative Coolers
Overpressure caused by Thermal Fluid Expansion
Overpressure caused by Thermal Fluid Expansion
256 I-P_S08_Ch14
I-P_S08_Ch14
Fig. 1 Relation of Saturation Pressure and Enthalpy to Water Temperature
Fig. 1 Relation of Saturation Pressure and Enthalpy to Water Temperature
Fig. 1 Relation of Saturation Pressure and Enthalpy to Water Temperature
Fig. 1 Relation of Saturation Pressure and Enthalpy to Water Temperature
System Characteristics
System Characteristics
257 Basic System
Basic System
Fig. 2 Elements of High-Temperature Water System
Fig. 2 Elements of High-Temperature Water System
Fig. 2 Elements of High-Temperature Water System
Fig. 2 Elements of High-Temperature Water System
Design Considerations
Design Considerations
Direct-Fired High-Temperature Water Generators
Direct-Fired High-Temperature Water Generators
258 Table 1 Properties of Water, 212 to 400ËšF
Table 1 Properties of Water, 212 to 400ËšF
Fig. 3 Density and Specific Heat of Water
Fig. 3 Density and Specific Heat of Water
Fig. 3 Density and Specific Heat of Water
Fig. 3 Density and Specific Heat of Water
Fig. 4 Arrangement of Boiler Piping
Fig. 4 Arrangement of Boiler Piping
Fig. 4 Arrangement of Boiler Piping
Fig. 4 Arrangement of Boiler Piping
259 Fig. 5 Piping Connections for Two or More Boilers in HTW System Pressurized by Steam
Fig. 5 Piping Connections for Two or More Boilers in HTW System Pressurized by Steam
Fig. 5 Piping Connections for Two or More Boilers in HTW System Pressurized by Steam
Fig. 5 Piping Connections for Two or More Boilers in HTW System Pressurized by Steam
Expansion and Pressurization
Expansion and Pressurization
Fig. 6 HTW Piping for Combined (One-Pump) System (Steam Pressurized)
Fig. 6 HTW Piping for Combined (One-Pump) System (Steam Pressurized)
Fig. 6 HTW Piping for Combined (One-Pump) System (Steam Pressurized)
Fig. 6 HTW Piping for Combined (One-Pump) System (Steam Pressurized)
260 Fig. 7 HTW Piping for Separate (Two-Pump) System (Steam Pressurized)
Fig. 7 HTW Piping for Separate (Two-Pump) System (Steam Pressurized)
Fig. 7 HTW Piping for Separate (Two-Pump) System (Steam Pressurized)
Fig. 7 HTW Piping for Separate (Two-Pump) System (Steam Pressurized)
Fig. 8 Inert Gas Pressurization for One-Pump System
Fig. 8 Inert Gas Pressurization for One-Pump System
Fig. 8 Inert Gas Pressurization for One-Pump System
Fig. 8 Inert Gas Pressurization for One-Pump System
Fig. 9 Inert Gas Pressurization for Two-Pump System
Fig. 9 Inert Gas Pressurization for Two-Pump System
Fig. 9 Inert Gas Pressurization for Two-Pump System
Fig. 9 Inert Gas Pressurization for Two-Pump System
261 Fig. 10 Inert Gas Pressurization Using Variable Gas Quantity with Gas Recovery
Fig. 10 Inert Gas Pressurization Using Variable Gas Quantity with Gas Recovery
Fig. 10 Inert Gas Pressurization Using Variable Gas Quantity with Gas Recovery
Fig. 10 Inert Gas Pressurization Using Variable Gas Quantity with Gas Recovery
Direct-Contact Heaters (Cascades)
Direct-Contact Heaters (Cascades)
Fig. 11 Cascade HTW System
Fig. 11 Cascade HTW System
Fig. 11 Cascade HTW System
Fig. 11 Cascade HTW System
Fig. 12 Cascade HTW System Combined with Boiler Feedwater Preheating
Fig. 12 Cascade HTW System Combined with Boiler Feedwater Preheating
Fig. 12 Cascade HTW System Combined with Boiler Feedwater Preheating
Fig. 12 Cascade HTW System Combined with Boiler Feedwater Preheating
System Circulating Pumps
System Circulating Pumps
262 Fig. 13 Typical HTW System with Push-Pull Pumping
Fig. 13 Typical HTW System with Push-Pull Pumping
Fig. 13 Typical HTW System with Push-Pull Pumping
Fig. 13 Typical HTW System with Push-Pull Pumping
Distribution Piping Design
Distribution Piping Design
263 Heat Exchangers
Heat Exchangers
Air Heating Coils
Air Heating Coils
Space Heating Equipment
Space Heating Equipment
Instrumentation and Controls
Instrumentation and Controls
264 Fig. 14 Control Diagram for HTW Generator
Fig. 14 Control Diagram for HTW Generator
Fig. 14 Control Diagram for HTW Generator
Fig. 14 Control Diagram for HTW Generator
Water Treatment
Water Treatment
Fig. 15 Heat Exchanger Connections
Fig. 15 Heat Exchanger Connections
Fig. 15 Heat Exchanger Connections
Fig. 15 Heat Exchanger Connections
Heat Storage
Heat Storage
Safety Considerations
Safety Considerations
References
References
265 Bibliography
Bibliography
266 I-P_S08_Ch15
I-P_S08_Ch15
Energy Conservation
Energy Conservation
Infrared Energy Sources
Infrared Energy Sources
Gas Infrared
Gas Infrared
267 Fig. 1 Both
Fig. 1 Both
Fig. 1 Types of Gas-Fired Infrared Heaters
Fig. 1 Types of Gas-Fired Infrared Heaters
Table 1 Characteristics of Typical Gas-Fired Infrared Heaters
Table 1 Characteristics of Typical Gas-Fired Infrared Heaters
Electric Infrared
Electric Infrared
268 Fig. 2 Both
Fig. 2 Both
Fig. 2 Common Electric Infrared Heaters
Fig. 2 Common Electric Infrared Heaters
Table 2 Characteristics of Four Electric Infrared Elements
Table 2 Characteristics of Four Electric Infrared Elements
Oil Infrared
Oil Infrared
System Efficiency
System Efficiency
269 Reflectors
Reflectors
Controls
Controls
Precautions
Precautions
270 Maintenance
Maintenance
Design Considerations for Beam Radiant Heaters
Design Considerations for Beam Radiant Heaters
Fig. 3 IP
Fig. 3 IP
Fig. 3 Relative Absorptance and Reflectance of Skin and Typical Clothing Surfaces
Fig. 3 Relative Absorptance and Reflectance of Skin and Typical Clothing Surfaces
271 Fig. 4 Both
Fig. 4 Both
Fig. 4 Projected Area Factor for Seated Persons, Nude and Clothed
Fig. 4 Projected Area Factor for Seated Persons, Nude and Clothed
Fig. 5 Both
Fig. 5 Both
Fig. 5 Projected Area Factor for Standing Persons, Nude and Clothed
Fig. 5 Projected Area Factor for Standing Persons, Nude and Clothed
Fig. 6 IP
Fig. 6 IP
Fig. 6 Radiant Heat Flux Distribution Curve of Typical Narrow-Beam High-Intensity Electric Infrared Heaters
Fig. 6 Radiant Heat Flux Distribution Curve of Typical Narrow-Beam High-Intensity Electric Infrared Heaters
Fig. 7 IP
Fig. 7 IP
Fig. 7 Radiant Heat Flux Distribution Curve of Typical Broad-Beam High-Intensity Electric Infrared Heaters
Fig. 7 Radiant Heat Flux Distribution Curve of Typical Broad-Beam High-Intensity Electric Infrared Heaters
272 Fig. 8 IP
Fig. 8 IP
Fig. 8 Radiant Heat Flux Distribution Curve of Typical Narrow-Beam High-Intensity Atmospheric Gas-Fired Infrared Heaters
Fig. 8 Radiant Heat Flux Distribution Curve of Typical Narrow-Beam High-Intensity Atmospheric Gas-Fired Infrared Heaters
Fig. 9 IP
Fig. 9 IP
Fig. 9 Radiant Heat Flux Distribution Curve of Typical Broad-Beam High-Intensity Atmospheric Gas-Fired Infrared Heaters
Fig. 9 Radiant Heat Flux Distribution Curve of Typical Broad-Beam High-Intensity Atmospheric Gas-Fired Infrared Heaters
Fig. 10 IP
Fig. 10 IP
Fig. 10 Calculation of Total ERF from Three Gas-Fired Heaters on Worker Standing at Positions A Through E
Fig. 10 Calculation of Total ERF from Three Gas-Fired Heaters on Worker Standing at Positions A Through E
273 References
References
Bibliography
Bibliography
274 I-P_S08_Ch16
I-P_S08_Ch16
Fig. 1 Relative Germicidal Efficiency
Fig. 1 Relative Germicidal Efficiency
Fig. 1 Relative Germicidal Efficiency
Fig. 1 Relative Germicidal Efficiency
Terminology
Terminology
275 UVGI Fundamentals
UVGI Fundamentals
Microbial Dose Response
Microbial Dose Response
Susceptibility of Microorganisms to UV Energy
Susceptibility of Microorganisms to UV Energy
Fig. 2 General Ranking of Susceptibility to UVC Inactivation of Microorganisms by Group
Fig. 2 General Ranking of Susceptibility to UVC Inactivation of Microorganisms by Group
Fig. 2 General Ranking of Susceptibility to UVC Inactivation of Microorganisms by Group
Fig. 2 General Ranking of Susceptibility to UVC Inactivation of Microorganisms by Group
276 Table 1 Representative Members of Organism Groups
Table 1 Representative Members of Organism Groups
Lamps and Ballasts
Lamps and Ballasts
Types of Germicidal Lamps
Types of Germicidal Lamps
Fig. 3 Typical UVGI Lamp
Fig. 3 Typical UVGI Lamp
Fig. 3 Typical UVGI Lamp
Fig. 3 Typical UVGI Lamp
277 Germicidal Lamp Ballasts
Germicidal Lamp Ballasts
278 Germicidal Lamp Cooling and Heating Effects
Germicidal Lamp Cooling and Heating Effects
Fig. 4 Example of Lamp Efficiency as Function of Cold-Spot Temperature
Fig. 4 Example of Lamp Efficiency as Function of Cold-Spot Temperature
Fig. 4 Example of Lamp Efficiency as Function of Cold-Spot Temperature
Fig. 4 Example of Lamp Efficiency as Function of Cold-Spot Temperature
Fig. 5 Windchill Effect on UVC Lamp Efficiency
Fig. 5 Windchill Effect on UVC Lamp Efficiency
Fig. 5 Windchill Effect on UVC Lamp Efficiency
Fig. 5 Windchill Effect on UVC Lamp Efficiency
Germicidal Lamp Aging
Germicidal Lamp Aging
UVGI Lamp Irradiance
UVGI Lamp Irradiance
Fig. 6
Fig. 6
Fig. 6 Diagram of Irradiance Calculation
Fig. 6 Diagram of Irradiance Calculation
Application
Application
Ultraviolet Fixture Configurations
Ultraviolet Fixture Configurations
279 In-Duct Airstream Disinfection
In-Duct Airstream Disinfection
Table 2 Material Reflectivity
Table 2 Material Reflectivity
Air Handler Component Surface Disinfection
Air Handler Component Surface Disinfection
280 Table 3 Advantages and Disadvantages of UVC Fixture Location Relative to Coil
Table 3 Advantages and Disadvantages of UVC Fixture Location Relative to Coil
Fig. 7 UV Lamps Upstream or Downstream of Coil and Drain Pan
Fig. 7 UV Lamps Upstream or Downstream of Coil and Drain Pan
Fig. 7 UV Lamps Upstream or Downstream of Coil and Drain Pan
Fig. 7 UV Lamps Upstream or Downstream of Coil and Drain Pan
Fig. 8 Typical Installation at Coil
Fig. 8 Typical Installation at Coil
Fig. 8 Horizontal Lamp Placement for Coil Surface Disinfection
Fig. 8 Horizontal Lamp Placement for Coil Surface Disinfection
Upper-Air UVGI Systems
Upper-Air UVGI Systems
Fig. 9 Typical Elevation View
Fig. 9 Typical Elevation View
Fig. 9 Typical Elevation View
Fig. 9 Typical Elevation View
281 Fig. 10 Room Distribution
Fig. 10 Room Distribution
Fig. 10 Room Distribution
Fig. 10 Room Distribution
UV Photodegradation of Materials
UV Photodegradation of Materials
Maintenance
Maintenance
Lamp Replacement
Lamp Replacement
Lamp Disposal
Lamp Disposal
Visual Inspection
Visual Inspection
Safety
Safety
Hazards of Ultraviolet Radiation to Humans
Hazards of Ultraviolet Radiation to Humans
282 Sources of UV Exposure
Sources of UV Exposure
Exposure Limits
Exposure Limits
Table 4 Permissible Exposure Times for Given Effective Irradiance Levels of UVC Energy at 253.7 nm
Table 4 Permissible Exposure Times for Given Effective Irradiance Levels of UVC Energy at 253.7 nm
UV Radiation Measurements
UV Radiation Measurements
Safety Design Guidance
Safety Design Guidance
283 Personnel Safety Training
Personnel Safety Training
Lamp Breakage
Lamp Breakage
Unit Conversions
Unit Conversions
References
References
285 I-P_S08_Ch17
I-P_S08_Ch17
Fig. 1 Effect of Ambient Temperature on CT Output
Fig. 1 Effect of Ambient Temperature on CT Output
Fig. 1 Effect of Ambient Temperature on CT Output
Fig. 1 Effect of Ambient Temperature on CT Output
Fig. 2 Effect of Ambient Temperature on CT Heat Rate
Fig. 2 Effect of Ambient Temperature on CT Heat Rate
Fig. 2 Effect of Ambient Temperature on CT Heat Rate
Fig. 2 Effect of Ambient Temperature on CT Heat Rate
Fig. 3 Effects of Ambient Temperature on Thermal Energy, Mass Flow Rate and Temperature of CT Exhaust Gases
Fig. 3 Effects of Ambient Temperature on Thermal Energy, Mass Flow Rate and Temperature of CT Exhaust Gases
Fig. 3 Effects of Ambient Temperature on Thermal Energy, Mass Flow Rate and Temperature of CT Exhaust Gases
Fig. 3 Effects of Ambient Temperature on Thermal Energy, Mass Flow Rate and Temperature of CT Exhaust Gases
286 Fig. 4 Typical Hourly Power Demand Profile
Fig. 4 Typical Hourly Power Demand Profile
Fig. 4 Typical Hourly Power Demand Profile
Fig. 4 Typical Hourly Power Demand Profile
Fig. 5 Example of Daily System Load and Electric Energy Pricing Profiles
Fig. 5 Example of Daily System Load and Electric Energy Pricing Profiles
Fig. 5 Example of Daily System Load and Electric Energy Pricing Profiles
Fig. 5 Example of Daily System Load and Electric Energy Pricing Profiles
Advantages
Advantages
Economic Benefits
Economic Benefits
Environmental Benefits
Environmental Benefits
Disadvantages
Disadvantages
Definition and Theory
Definition and Theory
287 Table 1 Examples of Emissions from Typical Combined- Cycle, Simple-Cycle, and Steam Turbine Systems
Table 1 Examples of Emissions from Typical Combined- Cycle, Simple-Cycle, and Steam Turbine Systems
Fig. 6 Schematic Flow Diagram of Typical Combustion Turbine System
Fig. 6 Schematic Flow Diagram of Typical Combustion Turbine System
Fig. 6 Schematic Flow Diagram of Typical Combustion Turbine System
Fig. 6 Schematic Flow Diagram of Typical Combustion Turbine System
System Types
System Types
Evaporative Systems
Evaporative Systems
288 Chiller Systems
Chiller Systems
LNG Vaporization Systems
LNG Vaporization Systems
Calculation of Power Capacity Enhancement and Economics
Calculation of Power Capacity Enhancement and Economics
290 References
References
Bibliography
Bibliography
291 I-P_S08_Ch18
I-P_S08_Ch18
Building Code Requirements
Building Code Requirements
Fig. 1 Hierarchy of Building Codes and Standards
Fig. 1 Hierarchy of Building Codes and Standards
Fig. 1 Hierarchy of Building Codes and Standards
Fig. 1 Hierarchy of Building Codes and Standards
Classifications
Classifications
292 Table 1 Recommended Duct Seal Levels*
Table 1 Recommended Duct Seal Levels*
Table 2 Duct Seal Levels*
Table 2 Duct Seal Levels*
Duct Cleaning
Duct Cleaning
Leakage
Leakage
Table 3 Residential Metal Duct Construction1
Table 3 Residential Metal Duct Construction1
Residential Duct Construction
Residential Duct Construction
Commercial Duct Construction
Commercial Duct Construction
Materials
Materials
Rectangular and Round Ducts
Rectangular and Round Ducts
293 Table 4A Galvanized Sheet Thickness
Table 4A Galvanized Sheet Thickness
Table 4B Uncoated Steel Sheet Thickness
Table 4B Uncoated Steel Sheet Thickness
Table 4C Stainless Steel Sheet Thickness
Table 4C Stainless Steel Sheet Thickness
Table 5 Steel Angle Weight per Unit Length (Approximate)
Table 5 Steel Angle Weight per Unit Length (Approximate)
Flat Oval Ducts
Flat Oval Ducts
Fibrous Glass Ducts
Fibrous Glass Ducts
Flexible Ducts
Flexible Ducts
294 Plenums and Apparatus Casings
Plenums and Apparatus Casings
Acoustical Treatment
Acoustical Treatment
Hangers
Hangers
Industrial Duct Construction
Industrial Duct Construction
Materials
Materials
295 Round Ducts
Round Ducts
Rectangular Ducts
Rectangular Ducts
Construction Details
Construction Details
Hangers
Hangers
Antimicrobial-Treated Ducts
Antimicrobial-Treated Ducts
Duct Construction for Grease- and Moisture-Laden Vapors
Duct Construction for Grease- and Moisture-Laden Vapors
Rigid Plastic Ducts
Rigid Plastic Ducts
296 Fabric Ducts
Fabric Ducts
Underground Ducts
Underground Ducts
Ducts Outside Buildings
Ducts Outside Buildings
Seismic Qualification
Seismic Qualification
Sheet Metal Welding
Sheet Metal Welding
Thermal Insulation
Thermal Insulation
Master Specifications
Master Specifications
References
References
298 Bibliography
Bibliography
299 I-P_S08_Ch19
I-P_S08_Ch19
Fig. 1 Designations for Inlet and Outlet
Fig. 1 Designations for Inlet and Outlet
Supply Outlets
Supply Outlets
Fully Mixed Systems
Fully Mixed Systems
300 Fig. 2 Classification of Air Distribution Strategies
Fig. 2 Classification of Air Distribution Strategies
Fig. 2 Classification of Air Distribution Strategies
Fig. 2 Classification of Air Distribution Strategies
Outlet Selection Procedure
Outlet Selection Procedure
Factors that Influence Selection
Factors that Influence Selection
301 Fully Stratified Systems
Fully Stratified Systems
Outlet Selection Procedure
Outlet Selection Procedure
Factors that Influence Selection
Factors that Influence Selection
Partially Mixed Systems
Partially Mixed Systems
302 Outlet Selection Procedures
Outlet Selection Procedures
Factors that Influence Selection
Factors that Influence Selection
Types of Supply Air Outlets
Types of Supply Air Outlets
Grilles
Grilles
303 Table 1 Typical Applications for Supply Air Outlets
Table 1 Typical Applications for Supply Air Outlets
Fig. 3 Accessory Controls for Supply Air Grilles
Fig. 3 Accessory Controls for Supply Air Grilles
Fig. 3 Accessory Controls for Supply Air Grilles
Fig. 3 Accessory Controls for Supply Air Grilles
304 Nozzles
Nozzles
Diffusers
Diffusers
305 Fig. 4 Accessory Controls for Ceiling Diffusers
Fig. 4 Accessory Controls for Ceiling Diffusers
Fig. 4 Accessory Controls for Ceiling Diffusers
Fig. 4 Accessory Controls for Ceiling Diffusers
Return and Exhaust Air Inlets
Return and Exhaust Air Inlets
Types of Inlets
Types of Inlets
V-Bar Grille
V-Bar Grille
Lightproof Grille
Lightproof Grille
Stamped Grilles
Stamped Grilles
Eggcrate and Perforated-Face Grilles
Eggcrate and Perforated-Face Grilles
Applications
Applications
306 Terminal Units
Terminal Units
General
General
Single-Duct Terminal Units
Single-Duct Terminal Units
Dual-Duct Terminal Units
Dual-Duct Terminal Units
Air-to-Air Induction Terminal Units
Air-to-Air Induction Terminal Units
307 Chilled Beams
Chilled Beams
Fan-Powered Terminal Units
Fan-Powered Terminal Units
308 Bypass Terminal Units
Bypass Terminal Units
References
References
Bibliography
Bibliography
309 I-P_S08_Ch20
I-P_S08_Ch20
Types of Fans
Types of Fans
Fig. 1 Centrifugal Fan Components
Fig. 1 Centrifugal Fan Components
Fig. 1 Centrifugal Fan Components
Fig. 1 Centrifugal Fan Components
Fig. 2 Axial Fan Components
Fig. 2 Axial Fan Components
Fig. 2 Axial Fan Components
Fig. 2 Axial Fan Components
Principles of Operation
Principles of Operation
310 Table 1 Types of Fans
Table 1 Types of Fans
311 Table 1 Types of Fans (Concluded)
Table 1 Types of Fans (Concluded)
312 Testing and Rating
Testing and Rating
Fig. 3 Method of Obtaining Fan Performance Curves
Fig. 3 Method of Obtaining Fan Performance Curves
Fig. 3 Method of Obtaining Fan Performance Curves
Fig. 3 Method of Obtaining Fan Performance Curves
Fan Laws
Fan Laws
Table 2 Fan Laws
Table 2 Fan Laws
313 Fig. 4 IP
Fig. 4 IP
Fig. 4 Example Application of Fan Laws
Fig. 4 Example Application of Fan Laws
Fig. 5 Pressure Relationships of Fan with Outlet System Only
Fig. 5 Pressure Relationships of Fan with Outlet System Only
Fig. 5 Pressure Relationships of Fan with Outlet System Only
Fig. 5 Pressure Relationships of Fan with Outlet System Only
Fan and System Pressure Relationships
Fan and System Pressure Relationships
Fig. 6 Pressure Relationships of Fan with Inlet System Only
Fig. 6 Pressure Relationships of Fan with Inlet System Only
Fig. 6 Pressure Relationships of Fan with Inlet System Only
Fig. 6 Pressure Relationships of Fan with Inlet System Only
Fig. 7 Pressure Relationships of Fan with Equal-Sized Inlet and Outlet Systems
Fig. 7 Pressure Relationships of Fan with Equal-Sized Inlet and Outlet Systems
Fig. 7 Pressure Relationships of Fan with Equal-Sized Inlet and Outlet Systems
Fig. 7 Pressure Relationships of Fan with Equal-Sized Inlet and Outlet Systems
Fig. 8 Pressure Relationships of Fan with Diverging Cone Outlet
Fig. 8 Pressure Relationships of Fan with Diverging Cone Outlet
Fig. 8 Pressure Relationships of Fan with Diverging Cone Outlet
Fig. 8 Pressure Relationships of Fan with Diverging Cone Outlet
314 Temperature Rise Across Fans
Temperature Rise Across Fans
Duct System Characteristics
Duct System Characteristics
Fig. 9 Simple Duct System with Resistance to Flow Represented by Three 90Ëš Elbows
Fig. 9 Simple Duct System with Resistance to Flow Represented by Three 90Ëš Elbows
Fig. 9 Simple Duct System with Resistance to Flow Represented by Three 90Ëš Elbows
Fig. 9 Simple Duct System with Resistance to Flow Represented by Three 90Ëš Elbows
Fig. 10 IP
Fig. 10 IP
Fig. 10 Example System Total Pressure Loss (DP ) Curves
Fig. 10 Example System Total Pressure Loss (DP ) Curves
Fig. 11 Both
Fig. 11 Both
Fig. 11 Resistance Added to Duct System of Figure 9
Fig. 11 Resistance Added to Duct System of Figure 9
315 Fig. 12 Both
Fig. 12 Both
Fig. 12 Resistance Removed from Duct System of Figure 9
Fig. 12 Resistance Removed from Duct System of Figure 9
System Effects
System Effects
Selection
Selection
Fig. 13 IP
Fig. 13 IP
Fig. 13 Conventional Fan Performance Curve Used by Most Manufacturers
Fig. 13 Conventional Fan Performance Curve Used by Most Manufacturers
Parallel Fan Operation
Parallel Fan Operation
316 Fig. 14 IP
Fig. 14 IP
Fig. 14 Desirable Combination of Ptf and DP Curves
Fig. 14 Desirable Combination of Ptf and DP Curves
Fig. 15 IP
Fig. 15 IP
Fig. 15 Two Forward-Curved Centrifugal Fans in Parallel Operation
Fig. 15 Two Forward-Curved Centrifugal Fans in Parallel Operation
Noise
Noise
Vibration
Vibration
Vibration Isolation
Vibration Isolation
Arrangement and Installation
Arrangement and Installation
317 Fan Isolation
Fan Isolation
Control
Control
Fig. 16 Effect of Inlet Vane Control on Backward- Curved Centrifugal Fan Performance
Fig. 16 Effect of Inlet Vane Control on Backward- Curved Centrifugal Fan Performance
Fig. 16 Effect of Inlet Vane Control on Backward- Curved Centrifugal Fan Performance
Fig. 16 Effect of Inlet Vane Control on Backward- Curved Centrifugal Fan Performance
Fig. 17 Effect of Blade Pitch on Controllable Pitch Vaneaxial Fan Performance
Fig. 17 Effect of Blade Pitch on Controllable Pitch Vaneaxial Fan Performance
Fig. 17 Effect of Blade Pitch on Controllable-Pitch Vaneaxial Fan Performance
Fig. 17 Effect of Blade Pitch on Controllable-Pitch Vaneaxial Fan Performance
Symbols
Symbols
References
References
318 Bibliography
Bibliography
319 I-P_S08_Ch21
I-P_S08_Ch21
Environmental Conditions
Environmental Conditions
Human Comfort
Human Comfort
Fig. 1 Optimum Humidity Range for Human Comfort and Health
Fig. 1 Optimum Humidity Range for Human Comfort and Health
Fig. 1 Optimum Humidity Range for Human Comfort and Health
Fig. 1 Optimum Humidity Range for Human Comfort and Health
Prevention and Treatment of Disease
Prevention and Treatment of Disease
Potential Bacterial Growth
Potential Bacterial Growth
Electronic Equipment
Electronic Equipment
Process Control and Materials Storage
Process Control and Materials Storage
320 Static Electricity
Static Electricity
Sound Wave Transmission
Sound Wave Transmission
Miscellaneous
Miscellaneous
Enclosure Characteristics
Enclosure Characteristics
Vapor Retarders
Vapor Retarders
Visible Condensation
Visible Condensation
Fig. 2 Limiting Relative Humidity for No Window Condensation
Fig. 2 Limiting Relative Humidity for No Window Condensation
Fig. 2 Limiting Relative Humidity for No Window Condensation
Fig. 2 Limiting Relative Humidity for No Window Condensation
321 Table 1 Maximum Relative Humidity In a Space for No Condensation on Windows
Table 1 Maximum Relative Humidity In a Space for No Condensation on Windows
Concealed Condensation
Concealed Condensation
Energy Considerations
Energy Considerations
Load Calculations
Load Calculations
Design Conditions
Design Conditions
322 Ventilation Rate
Ventilation Rate
Additional Moisture Losses
Additional Moisture Losses
Internal Moisture Gains
Internal Moisture Gains
Supply Water for Humidifiers
Supply Water for Humidifiers
Scaling
Scaling
Equipment
Equipment
323 Residential Humidifiers for Central Air Systems
Residential Humidifiers for Central Air Systems
Fig. 3 Residential Humidifiers
Fig. 3 Residential Humidifiers
Fig. 3 Residential Humidifiers
Fig. 3 Residential Humidifiers
Residential Humidifiers for Nonducted Applications
Residential Humidifiers for Nonducted Applications
324 Fig. 4 Industrial Humidifiers
Fig. 4 Industrial Humidifiers
Fig. 4 Industrial Humidifiers
Fig. 4 Industrial Humidifiers
Industrial and Commercial Humidifiers for Central Air Systems
Industrial and Commercial Humidifiers for Central Air Systems
325 Controls
Controls
Mechanical Controls
Mechanical Controls
Electronic Controllers
Electronic Controllers
326 Fig. 5 Recommended Humidity Controller Location
Fig. 5 Recommended Humidity Controller Location
Fig. 5 Recommended Humidity Controller Location
Fig. 5 Recommended Humidity Controller Location
Humidity Control in Variable Air Volume (VAV) Systems
Humidity Control in Variable Air Volume (VAV) Systems
Control Location
Control Location
References
References
Bibliography
Bibliography
327 I-P_S08_Ch22
I-P_S08_Ch22
Uses for Coils
Uses for Coils
Coil Construction and Arrangement
Coil Construction and Arrangement
Fig. 1 Typical Water Circuit Arrangement
Fig. 1 Typical Water Circuit Arrangement
328 Water and Aqueous Glycol Coils
Water and Aqueous Glycol Coils
Direct-Expansion Coils
Direct-Expansion Coils
329 Control of Coils
Control of Coils
Fig. 2 Arrangements for Coils with Multiple Thermostatic Expansion Valves
Fig. 2 Arrangements for Coils with Multiple Thermostatic Expansion Valves
Fig. 2 Arrangements for Coils with Multiple Thermostatic Expansion Valves
Fig. 2 Arrangements for Coils with Multiple Thermostatic Expansion Valves
Flow Arrangement
Flow Arrangement
330 Fig. 3 Typical Coil Hand Designation
Fig. 3 Typical Coil Hand Designation
Fig. 3 Typical Coil Hand Designation
Fig. 3 Typical Coil Hand Designation
Applications
Applications
Fig. 4 Typical Arrangement of Cooling Coil Assembly in Built-Up or Packaged Central Station Air Handler
Fig. 4 Typical Arrangement of Cooling Coil Assembly in Built-Up or Packaged Central Station Air Handler
Fig. 4 Typical Arrangement of Cooling Coil Assembly in Built-Up or Packaged Central Station Air Handler
Fig. 4 Typical Arrangement of Cooling Coil Assembly in Built-Up or Packaged Central Station Air Handler
Fig. 5 Coil Bank Arrangement with Intermediate Condensate Pan
Fig. 5 Coil Bank Arrangement with Intermediate Condensate Pan
Fig. 5 Coil Bank Arrangement with Intermediate Condensate Pan
Fig. 5 Coil Bank Arrangement with Intermediate Condensate Pan
331 Fig. 6 Sprayed-Coil System with Air Bypass
Fig. 6 Sprayed-Coil System with Air Bypass
Fig. 6 Sprayed-Coil System with Air Bypass
Fig. 6 Sprayed-Coil System with Air Bypass
Coil Selection
Coil Selection
332 Performance and Ratings
Performance and Ratings
Airflow Resistance
Airflow Resistance
Heat Transfer
Heat Transfer
333 Performance of Sensible Cooling Coils
Performance of Sensible Cooling Coils
335 Performance of Dehumidifying Coils
Performance of Dehumidifying Coils
336 Fig. 7 Two-Component Driving Force Between Dehumidifying Air and Coolant
Fig. 7 Two-Component Driving Force Between Dehumidifying Air and Coolant
Fig. 7 Two-Component Driving Force Between Dehumidifying Air and Coolant
Fig. 7 Two-Component Driving Force Between Dehumidifying Air and Coolant
Fig. 8 Surface Temperature Chart
Fig. 8 Surface Temperature Chart
Fig. 8 Surface Temperature Chart
Fig. 8 Surface Temperature Chart
Fig. 9 Thermal Diagram for General Case When Coil Surface Operates Partially Dry
Fig. 9 Thermal Diagram for General Case When Coil Surface Operates Partially Dry
Fig. 9 Thermal Diagram for General Case When Coil Surface Operates Partially Dry
Fig. 9 Thermal Diagram for General Case When Coil Surface Operates Partially Dry
338 Fig. 10 Leaving Air Dry-Bulb Temperature Determination for Air-Cooling and Dehumidifying Coils
Fig. 10 Leaving Air Dry-Bulb Temperature Determination for Air-Cooling and Dehumidifying Coils
Fig. 10 Leaving Air Dry-Bulb Temperature Determination for Air-Cooling and Dehumidifying Coils
Fig. 10 Leaving Air Dry-Bulb Temperature Determination for Air-Cooling and Dehumidifying Coils
Fig. 11 Typical Total Metal Thermal Resistance of Fin and Tube Assembly
Fig. 11 Typical Total Metal Thermal Resistance of Fin and Tube Assembly
Fig. 11 Typical Total Metal Thermal Resistance of Fin and Tube Assembly
Fig. 11 Typical Total Metal Thermal Resistance of Fin and Tube Assembly
339 Fig. 12 Typical Air-Side Application Rating Data Determined Experimentally for Cooling and Dehumidifying Water Coils
Fig. 12 Typical Air-Side Application Rating Data Determined Experimentally for Cooling and Dehumidifying Water Coils
Fig. 12 Typical Air-Side Application Rating Data Determined Experimentally for Cooling and Dehumidifying Water Coils
Fig. 12 Typical Air-Side Application Rating Data Determined Experimentally for Cooling and Dehumidifying Water Coils
340 Determining Refrigeration Load
Determining Refrigeration Load
Fig. 13 Psychrometric Performance of Cooling and Dehumidifying Coil
Fig. 13 Psychrometric Performance of Cooling and Dehumidifying Coil
Fig. 13 Psychrometric Performance of Cooling and Dehumidifying Coil
Fig. 13 Psychrometric Performance of Cooling and Dehumidifying Coil
341 Maintenance
Maintenance
342 Symbols
Symbols
References
References
Bibliography
Bibliography
343 I-P_S08_Ch23
I-P_S08_Ch23
Methods of Dehumidification
Methods of Dehumidification
Fig. 1 Methods of Dehumidification
Fig. 1 Methods of Dehumidification
Fig. 1 Methods of Dehumidification
Fig. 1 Methods of Dehumidification
Compression
Compression
344 Cooling
Cooling
Liquid Desiccants
Liquid Desiccants
Fig. 2 Flow Diagram for Liquid-Absorbent Dehumidifier
Fig. 2 Flow Diagram for Liquid-Absorbent Dehumidifier
Fig. 2 Flow Diagram for Liquid-Absorbent Dehumidifier
Fig. 2 Flow Diagram for Liquid-Absorbent Dehumidifier
Fig. 3 Flow Diagram for Liquid-Absorbent Unit with Extended Surface Air Contact Medium
Fig. 3 Flow Diagram for Liquid-Absorbent Unit with Extended Surface Air Contact Medium
Fig. 3 Flow Diagram for Liquid-Absorbent Unit with Extended Surface Air Contact Medium
Fig. 3 Flow Diagram for Liquid-Absorbent Unit with Extended Surface Air Contact Medium
Fig. 4 Lithium Chloride Equilibrium
Fig. 4 Lithium Chloride Equilibrium
Fig. 4 Lithium Chloride Equilibrium
Fig. 4 Lithium Chloride Equilibrium
Solid Sorption
Solid Sorption
Desiccant Dehumidification
Desiccant Dehumidification
345 Liquid-Desiccant Equipment
Liquid-Desiccant Equipment
Heat Removal
Heat Removal
Regeneration
Regeneration
Fig. 5 Liquid Desiccant System with Multiple Conditioners
Fig. 5 Liquid Desiccant System with Multiple Conditioners
Fig. 5 Liquid Desiccant System with Multiple Conditioners
Fig. 5 Liquid Desiccant System with Multiple Conditioners
346 Fig. 6 Liquid Desiccant Regenerator Capacity
Fig. 6 Liquid Desiccant Regenerator Capacity
Fig. 6 Liquid Desiccant Regenerator Capacity
Fig. 6 Liquid Desiccant Regenerator Capacity
Solid-Sorption Equipment
Solid-Sorption Equipment
Rotary Solid-Desiccant Dehumidifiers
Rotary Solid-Desiccant Dehumidifiers
Operation
Operation
Fig. 7 Typical Rotary Dehumidification Wheel
Fig. 7 Typical Rotary Dehumidification Wheel
Fig. 7 Typical Rotary Dehumidification Wheel
Fig. 7 Typical Rotary Dehumidification Wheel
347 Fig. 8 Effect of Changes in Process Air Velocity on Dehumidifier Outlet Moisture
Fig. 8 Effect of Changes in Process Air Velocity on Dehumidifier Outlet Moisture
Fig. 8 Effect of Changes in Process Air Velocity on Dehumidifier Outlet Moisture
Fig. 8 Effect of Changes in Process Air Velocity on Dehumidifier Outlet Moisture
Fig. 9 Effect of Changes in Process Air Inlet Moisture on Dehumidifier Outlet Moisture
Fig. 9 Effect of Changes in Process Air Inlet Moisture on Dehumidifier Outlet Moisture
Fig. 9 Effect of Changes in Process Air Inlet Moisture on Dehumidifier Outlet Moisture
Fig. 9 Effect of Changes in Process Air Inlet Moisture on Dehumidifier Outlet Moisture
Fig. 10 Effect of Changes in Reactivation Air Inlet Temperature on Dehumidifier Outlet Moisture
Fig. 10 Effect of Changes in Reactivation Air Inlet Temperature on Dehumidifier Outlet Moisture
Fig. 10 Effect of Changes in Reactivation Air Inlet Temperature on Dehumidifier Outlet Moisture
Fig. 10 Effect of Changes in Reactivation Air Inlet Temperature on Dehumidifier Outlet Moisture
Fig. 11 Effect of Changes in Process Air Inlet Moisture on Dehumidifier Outlet Temperature
Fig. 11 Effect of Changes in Process Air Inlet Moisture on Dehumidifier Outlet Temperature
Fig. 11 Effect of Changes in Process Air Inlet Moisture on Dehumidifier Outlet Temperature
Fig. 11 Effect of Changes in Process Air Inlet Moisture on Dehumidifier Outlet Temperature
Fig. 12 Effect of Changes in Reactivation Air Inlet Temperature on Dehumidifier Outlet Temperature
Fig. 12 Effect of Changes in Reactivation Air Inlet Temperature on Dehumidifier Outlet Temperature
Fig. 12 Effect of Changes in Reactivation Air Inlet Temperature on Dehumidifier Outlet Temperature
Fig. 12 Effect of Changes in Reactivation Air Inlet Temperature on Dehumidifier Outlet Temperature
348 Fig. 13 Interactive Desiccant Wheel Performance Estimator
Fig. 13 Interactive Desiccant Wheel Performance Estimator
Fig. 13 Interactive Desiccant Wheel Performance Estimator
Fig. 13 Interactive Desiccant Wheel Performance Estimator
Use of Cooling
Use of Cooling
Using Units in Series
Using Units in Series
Industrial Rotary Desiccant Dehumidifier Performance
Industrial Rotary Desiccant Dehumidifier Performance
349 Fig. 14 Typical Performance Data for Rotary Solid Desiccant Dehumidifier
Fig. 14 Typical Performance Data for Rotary Solid Desiccant Dehumidifier
Fig. 14 Typical Performance Data for Rotary Solid Desiccant Dehumidifier
Fig. 14 Typical Performance Data for Rotary Solid Desiccant Dehumidifier
Equipment Operating Recommendations
Equipment Operating Recommendations
Process Air Filters
Process Air Filters
Reactivation/Regeneration Filters
Reactivation/Regeneration Filters
Reactivation/Regeneration Ductwork
Reactivation/Regeneration Ductwork
Leakage
Leakage
Airflow Indication and Control
Airflow Indication and Control
Commissioning
Commissioning
350 Owners’ and Operators’ Perspectives
Owners’ and Operators’ Perspectives
Applications for Atmospheric- Pressure Dehumidification
Applications for Atmospheric- Pressure Dehumidification
Preservation of Materials in Storage
Preservation of Materials in Storage
Process Dehumidification
Process Dehumidification
Ventilation Air Dehumidification
Ventilation Air Dehumidification
351 Fig. 15 Typical Peak Moisture Loads for Medium-Sized Retail Store Located in Atlanta
Fig. 15 Typical Peak Moisture Loads for Medium-Sized Retail Store Located in Atlanta
Fig. 15 Typical Peak Moisture Loads for Medium-Sized Retail Store in Atlanta, Georgia
Fig. 15 Typical Peak Moisture Loads for Medium-Sized Retail Store in Atlanta, Georgia
Fig. 16 Predrying Ventilation Air to Dehumidify a Commercial Building
Fig. 16 Predrying Ventilation Air to Dehumidify a Commercial Building
Fig. 16 Predrying Ventilation Air to Dehumidify a Commercial Building
Fig. 16 Predrying Ventilation Air to Dehumidify a Commercial Building
Fig. 17 Typical Rooftop Arrangement for Drying Ventilation Air Centrally, Removing Moisture Load from Cooling Units
Fig. 17 Typical Rooftop Arrangement for Drying Ventilation Air Centrally, Removing Moisture Load from Cooling Units
Fig. 17 Typical Rooftop Arrangement for Drying Ventilation Air Centrally, Removing Moisture Load from Cooling Units
Fig. 17 Typical Rooftop Arrangement for Drying Ventilation Air Centrally, Removing Moisture Load from Cooling Units
352 Condensation Prevention
Condensation Prevention
Dry Air-Conditioning Systems
Dry Air-Conditioning Systems
Indoor Air Quality Contaminant Control
Indoor Air Quality Contaminant Control
Testing
Testing
Desiccant Drying at Elevated Pressure
Desiccant Drying at Elevated Pressure
Equipment
Equipment
Absorption
Absorption
Adsorption
Adsorption
353 Fig. 18 Typical Performance Data for Solid Desiccant Dryers at Elevated Pressures
Fig. 18 Typical Performance Data for Solid Desiccant Dryers at Elevated Pressures
Fig. 18 Typical Performance Data for Solid Desiccant Dryers at Elevated Pressures
Fig. 18 Typical Performance Data for Solid Desiccant Dryers at Elevated Pressures
Fig. 19 Typical Adsorption Dryer for Elevated Pressures
Fig. 19 Typical Adsorption Dryer for Elevated Pressures
Fig. 19 Typical Adsorption Dryer for Elevated Pressures
Fig. 19 Typical Adsorption Dryer for Elevated Pressures
Applications
Applications
Material Preservation
Material Preservation
Process Drying of Air and Other Gases
Process Drying of Air and Other Gases
Equipment Testing
Equipment Testing
354 References
References
Bibliography
Bibliography
Additional Information
Additional Information
355 I-P_S08_Ch24
I-P_S08_Ch24
Mechanical Dehumidifiers
Mechanical Dehumidifiers
Psychrometrics of Dehumidification
Psychrometrics of Dehumidification
356 Fig. 1 Dehumidification Process Points
Fig. 1 Dehumidification Process Points
Fig. 1 Dehumidification Process Points
Fig. 1 Dehumidification Process Points
Fig. 2 Psychrometric Diagram of Typical Dehumidification Process
Fig. 2 Psychrometric Diagram of Typical Dehumidification Process
Fig. 2 Psychrometric Diagram of Typical Dehumidification Process
Fig. 2 Psychrometric Diagram of Typical Dehumidification Process
Domestic Dehumidifiers
Domestic Dehumidifiers
Fig. 3 Typical Dehumidifier Unit
Fig. 3 Typical Dehumidifier Unit
Fig. 3 Typical Domestic Dehumidifier
Fig. 3 Typical Domestic Dehumidifier
357 Fig. 4 General-Purpose Dehumidifier
Fig. 4 General-Purpose Dehumidifier
Fig. 4 Typical General-Purpose Dehumidifier
Fig. 4 Typical General-Purpose Dehumidifier
General-Purpose Dehumidifiers
General-Purpose Dehumidifiers
Makeup Air Dehumidifiers
Makeup Air Dehumidifiers
Fig. 5 Makeup Air Dehumidifier
Fig. 5 Makeup Air Dehumidifier
Fig. 5 Typical Makeup Air Dehumidifier
Fig. 5 Typical Makeup Air Dehumidifier
358 Fig. 6 Typical Makeup Air Dehumidifier with Exhaust Air Heat/Energy Recovery
Fig. 6 Typical Makeup Air Dehumidifier with Exhaust Air Heat/Energy Recovery
Fig. 6 Typical Makeup Air Dehumidifier with Exhaust Air Heat/Energy Recovery
Fig. 6 Typical Makeup Air Dehumidifier with Exhaust Air Heat/Energy Recovery
Indoor Swimming Pool Dehumidifiers
Indoor Swimming Pool Dehumidifiers
359 Fig. 7 Typical Single-Blower Pool Dehumidifier
Fig. 7 Typical Single-Blower Pool Dehumidifier
Fig. 7 Typical Single-Blower Pool Dehumidifier
Fig. 7 Typical Single-Blower Pool Dehumidifier
Fig. 8 Typical Double-Blower Pool Dehumidifier
Fig. 8 Typical Double-Blower Pool Dehumidifier
Fig. 8 Typical Double-Blower Pool Dehumidifier with DX Coil in Supply Air Section
Fig. 8 Typical Double-Blower Pool Dehumidifier with DX Coil in Supply Air Section
360 Fig. 9 Typical Double-Blower Pool Dehumidifier with DX Coil in Return Air Section
Fig. 9 Typical Double-Blower Pool Dehumidifier with DX Coil in Return Air Section
Fig. 10 Supply Blower and Double Exhaust Blower Pool Dehumidifier
Fig. 10 Supply Blower and Double Exhaust Blower Pool Dehumidifier
Ice Rink Dehumidifiers
Ice Rink Dehumidifiers
361 Fig. 11 Typical Installation of Ice Rink Dehumidifiers
Fig. 11 Typical Installation of Ice Rink Dehumidifiers
Installation and Service Considerations
Installation and Service Considerations
Wraparound Heat Exchangers
Wraparound Heat Exchangers
Fig. 12 Dehumidification Enhancement with Wraparound Heat Pipe
Fig. 12 Dehumidification Enhancement with Wraparound Heat Pipe
362 Fig. 9 Heat Pipe Dehumidification
Fig. 9 Heat Pipe Dehumidification
Fig. 13 Enhanced Dehumidification with a Wraparound Heat Pipe
Fig. 13 Enhanced Dehumidification with a Wraparound Heat Pipe
Fig. 10 Dehumidification Enhancement with Wraparound Heat Pipe
Fig. 10 Dehumidification Enhancement with Wraparound Heat Pipe
Fig. 14 Slide-in Heat Pipe for Rooftop Air Conditioner Refit
Fig. 14 Slide-in Heat Pipe for Rooftop Air Conditioner Refit
References
References
Bibliography
Bibliography
363 I-P_S08_Ch25
I-P_S08_Ch25
Applications
Applications
Table 1 Applications for Air-to-Air Energy Recovery
Table 1 Applications for Air-to-Air Energy Recovery
364 Basic Relations
Basic Relations
Fig. 1 Airstream Numbering Convention
Fig. 1 Airstream Numbering Convention
Fig. 1 Airstream Numbering Convention
Fig. 1 Airstream Numbering Convention
Heat Recovery Ventilators
Heat Recovery Ventilators
Energy Recovery Ventilators
Energy Recovery Ventilators
366 Ideal Air-to-Air Energy Exchange
Ideal Air-to-Air Energy Exchange
Airflow Arrangements
Airflow Arrangements
367 Fig. 2 Heat Exchanger Airflow Configurations
Fig. 2 Heat Exchanger Airflow Configurations
Fig. 2 Heat Exchanger Airflow Configurations
Fig. 2 Heat Exchanger Airflow Configurations
Effectiveness
Effectiveness
Rate of Energy Transfer
Rate of Energy Transfer
368 Additional Technical Considerations
Additional Technical Considerations
Air Leakage
Air Leakage
Fig. 3 Air Leakage in Energy Recovery Units
Fig. 3 Air Leakage in Energy Recovery Units
Fig. 3 Air Leakage in Energy Recovery Units
Fig. 3 Air Leakage in Energy Recovery Units
Air Capacity of Ventilator Fans
Air Capacity of Ventilator Fans
369 Pressure Drop
Pressure Drop
Maintenance
Maintenance
Filtration
Filtration
Controls
Controls
Fouling
Fouling
Corrosion
Corrosion
Condensation and Freeze-Up
Condensation and Freeze-Up
370 Frost Blockage and Control in Air-to-Air Exchangers
Frost Blockage and Control in Air-to-Air Exchangers
371 Performance Ratings
Performance Ratings
Design Considerations of Various ERV Systems
Design Considerations of Various ERV Systems
Fixed-Plate Heat Exchangers
Fixed-Plate Heat Exchangers
372 Fig. 4 Fixed-Plate Cross-Flow Heat Exchanger
Fig. 4 Fixed-Plate Cross-Flow Heat Exchanger
Fig. 4 Fixed-Plate Cross-Flow Heat Exchanger
Fig. 4 Fixed-Plate Cross-Flow Heat Exchanger
Fig. 5 Variation of Pressure Drop and Effectiveness with Air Flow Rates for a Membrane Plate Exchanger
Fig. 5 Variation of Pressure Drop and Effectiveness with Air Flow Rates for a Membrane Plate Exchanger
Fig. 5 Variation of Pressure Drop and Effectiveness with Air Flow Rates for a Membrane Plate Exchanger
Fig. 5 Variation of Pressure Drop and Effectiveness with Air Flow Rates for a Membrane Plate Exchanger
Fig. 6 Rotary Air-to-Air Energy Exchanger
Fig. 6 Rotary Air-to-Air Energy Exchanger
Fig. 6 Rotary Air-to-Air Energy Exchanger
Fig. 6 Rotary Air-to-Air Energy Exchanger
Rotary Air-to-Air Energy Exchangers
Rotary Air-to-Air Energy Exchangers
373 Fig. 7 Effectiveness of Counterflow Regenerator
Fig. 7 Effectiveness of Counterflow Regenerator
Fig. 7 Effectiveness of Counterflow Regenerator
Fig. 7 Effectiveness of Counterflow Regenerator
Coil Energy Recovery (Runaround) Loops
Coil Energy Recovery (Runaround) Loops
Fig. 8 Coil Energy Recovery Loop
Fig. 8 Coil Energy Recovery Loop
Fig. 8 Coil Energy Recovery Loop
Fig. 8 Coil Energy Recovery Loop
374 Fig. 9 Energy Recovery Capacity Versus Outside Air Temperature for Typical Loop
Fig. 9 Energy Recovery Capacity Versus Outside Air Temperature for Typical Loop
Fig. 9 Energy Recovery Capacity Versus Outside Air Temperature for Typical Loop
Fig. 9 Energy Recovery Capacity Versus Outside Air Temperature for Typical Loop
Heat Pipe Heat Exchangers
Heat Pipe Heat Exchangers
375 Fig. 10 Heat Pipe Assembly
Fig. 10 Heat Pipe Assembly
Fig. 10 Heat Pipe Assembly
Fig. 10 Heat Pipe Assembly
Fig. 11 Heat Pipe Operation
Fig. 11 Heat Pipe Operation
Fig. 11 Heat Pipe Operation
Fig. 11 Heat Pipe Operation
Fig. 12 Heat Pipe Exchanger Effectiveness
Fig. 12 Heat Pipe Exchanger Effectiveness
Fig. 12 Heat Pipe Exchanger Effectiveness
Fig. 12 Heat Pipe Exchanger Effectiveness
376 Fig. 13 Heat Pipe Heat Exchanger with Tilt Control
Fig. 13 Heat Pipe Heat Exchanger with Tilt Control
Fig. 13 Heat Pipe Heat Exchanger with Tilt Control
Fig. 13 Heat Pipe Heat Exchanger with Tilt Control
Twin-Tower Enthalpy Recovery Loops
Twin-Tower Enthalpy Recovery Loops
Fig. 14 Twin-Tower Enthalpy Recovery Loop
Fig. 14 Twin-Tower Enthalpy Recovery Loop
Fig. 14 Twin-Tower Enthalpy Recovery Loop
Fig. 14 Twin-Tower Enthalpy Recovery Loop
Thermosiphon Heat Exchangers
Thermosiphon Heat Exchangers
377 Fig. 15 Sealed-Tube Thermosiphons
Fig. 15 Sealed-Tube Thermosiphons
Fig. 15 Sealed-Tube Thermosiphons
Fig. 15 Sealed-Tube Thermosiphons
Fig. 16 Coil-Type Thermosiphon Loops
Fig. 16 Coil-Type Thermosiphon Loops
Fig. 16 Coil-Type Thermosiphon Loops
Fig. 16 Coil-Type Thermosiphon Loops
Fig. 17 Typical Performance of Two-Phase Thermosiphon Loop
Fig. 17 Typical Performance of Two-Phase Thermosiphon Loop
Fig. 17 Typical Performance of Two-Phase Thermosiphon Loop
Fig. 17 Typical Performance of Two-Phase Thermosiphon Loop
Comparison of Air-to-Air Energy Recovery Systems
Comparison of Air-to-Air Energy Recovery Systems
378 Table 2 Comparison of Air-to-Air Energy Recovery Devices
Table 2 Comparison of Air-to-Air Energy Recovery Devices
Long-Term Performance of Heat or Energy Recovery Ventilators
Long-Term Performance of Heat or Energy Recovery Ventilators
Selection of Heat or Energy Recovery Ventilators
Selection of Heat or Energy Recovery Ventilators
379 Energy and/or Mass Recovery Calculation Procedure
Energy and/or Mass Recovery Calculation Procedure
Fig. 18 Maximum Sensible and Latent Heat from Process A-B
Fig. 18 Maximum Sensible and Latent Heat from Process A-B
Fig. 18 Maximum Sensible and Latent Heat from Process A-B
Fig. 18 Maximum Sensible and Latent Heat from Process A-B
380 Fig. 19 Sensible Heat Recovery in Winter (Example 2)
Fig. 19 Sensible Heat Recovery in Winter (Example 2)
Fig. 19 Sensible Heat Recovery in Winter (Example 4)
Fig. 19 Sensible Heat Recovery in Winter (Example 4)
381 Fig. 20 Total Heat Recovery in Summer (Example 4)
Fig. 20 Total Heat Recovery in Summer (Example 4)
Fig. 20 Sensible Heat Recovery in Winter with Condensate (Example 5)
Fig. 20 Sensible Heat Recovery in Winter with Condensate (Example 5)
382 Fig. 21 Total Heat Recovery in Summer (Example 4)
Fig. 21 Total Heat Recovery in Summer (Example 4)
Fig. 21 Total Heat Recovery in Summer (Example 6)
Fig. 21 Total Heat Recovery in Summer (Example 6)
Fig. 22 Total Heat Recovery in Summer (Example 4)
Fig. 22 Total Heat Recovery in Summer (Example 4)
Fig. 22 Total Energy Recovery with EATR ¹ 0 and OACF ¹ 1 (Example 7)
Fig. 22 Total Energy Recovery with EATR ¹ 0 and OACF ¹ 1 (Example 7)
383 Fig. 23 Total Heat Recovery in Summer (Example 4)
Fig. 23 Total Heat Recovery in Summer (Example 4)
Fig. 23 Actual Airflow Rates at Various State Points (Example 7)
Fig. 23 Actual Airflow Rates at Various State Points (Example 7)
Indirect Evaporative Air Cooling
Indirect Evaporative Air Cooling
Fig. 24 Indirect Evaporative Cooling Recovery (Example 5)
Fig. 24 Indirect Evaporative Cooling Recovery (Example 5)
Fig. 24 Indirect Evaporative Cooling Recovery (Example 8)
Fig. 24 Indirect Evaporative Cooling Recovery (Example 8)
384 Precooling Air Reheater (Series Application)
Precooling Air Reheater (Series Application)
Fig. 25 Precooling Air Reheater
Fig. 25 Precooling Air Reheater
Fig. 25 Precooling Air Reheater
Fig. 25 Precooling Air Reheater
Fig. 26 Precooling Air Reheater Dehumidifier (Example 6)
Fig. 26 Precooling Air Reheater Dehumidifier (Example 6)
Fig. 26 Precooling Air Reheater Dehumidifier (Example 9)
Fig. 26 Precooling Air Reheater Dehumidifier (Example 9)
Economic Considerations
Economic Considerations
385 Symbols
Symbols
386 References
References
Bibliography
Bibliography
388 I-P_S08_Ch26
I-P_S08_Ch26
Coil Construction and Design
Coil Construction and Design
Steam Coils
Steam Coils
389 Table 1 Preferred Operating Limits for Continuous- Duty Steam Coil Materials in Commercial and Institutional Applications
Table 1 Preferred Operating Limits for Continuous- Duty Steam Coil Materials in Commercial and Institutional Applications
Water/Aqueous Glycol Heating Coils
Water/Aqueous Glycol Heating Coils
390 Volatile Refrigerant Heat Reclaim Coils
Volatile Refrigerant Heat Reclaim Coils
Electric Heating Coils
Electric Heating Coils
Coil Selection
Coil Selection
Coil Ratings
Coil Ratings
391 Overall Requirements
Overall Requirements
Table 2 Typical Maximum Condensate Loads
Table 2 Typical Maximum Condensate Loads
Installation Guidelines
Installation Guidelines
392 Coil Maintenance
Coil Maintenance
References
References
393 I-P_S08_Ch27
I-P_S08_Ch27
Unit Ventilators
Unit Ventilators
Application
Application
394 Fig. 1 Typical Unit Ventilators
Fig. 1 Typical Unit Ventilators
Fig. 1 Typical Unit Ventilators
Fig. 1 Typical Unit Ventilators
Fig. 2 Methods of Preventing Downdraft along Windows
Fig. 2 Methods of Preventing Downdraft along Windows
Fig. 2 Methods of Preventing Downdraft along Windows
Fig. 2 Methods of Preventing Downdraft along Windows
395 Selection
Selection
Capacity
Capacity
Table 1 Typical Unit Ventilator Capacities
Table 1 Typical Unit Ventilator Capacities
Control
Control
396 Unit Heaters
Unit Heaters
Application
Application
Selection
Selection
Heating Medium
Heating Medium
Type of Unit
Type of Unit
397 Fig. 3 Typical Unit Heaters
Fig. 3 Typical Unit Heaters
Fig. 3 Typical Unit Heaters
Fig. 3 Typical Unit Heaters
398 Location for Proper Heat Distribution
Location for Proper Heat Distribution
Sound Level in Occupied Spaces
Sound Level in Occupied Spaces
Ratings of Unit Heaters
Ratings of Unit Heaters
Filters
Filters
399 Fig. 4 Hot Water and Steam Connections for Unit Heaters
Fig. 4 Hot Water and Steam Connections for Unit Heaters
Fig. 4 Hot Water and Steam Connections for Unit Heaters
Fig. 4 Hot Water and Steam Connections for Unit Heaters
Control
Control
Piping Connections
Piping Connections
400 Maintenance
Maintenance
Makeup Air Units
Makeup Air Units
Description and Applications
Description and Applications
Other Applications
Other Applications
Selection
Selection
Location
Location
401 Heating and Cooling Media
Heating and Cooling Media
Filters
Filters
Control
Control
Applicable Codes and Standards
Applicable Codes and Standards
Commissioning
Commissioning
402 Maintenance
Maintenance
Bibliography
Bibliography
403 I-P_S08_Ch28
I-P_S08_Ch28
Atmospheric Dust
Atmospheric Dust
Aerosol Characteristics
Aerosol Characteristics
404 Air-Cleaning Applications
Air-Cleaning Applications
Mechanisms of Particle Collection
Mechanisms of Particle Collection
Evaluating Air Cleaners
Evaluating Air Cleaners
405 Air Cleaner Test Methods
Air Cleaner Test Methods
Arrestance Test
Arrestance Test
Atmospheric Dust-Spot Efficiency Test
Atmospheric Dust-Spot Efficiency Test
406 Fig. 1 Typical Performance Curves for Fixed Cartridge-Type Filter According to ASHRAE Standard 52.1
Fig. 1 Typical Performance Curves for Fixed Cartridge-Type Filter According to ASHRAE Standard 52.1
Fig. 1 Typical Performance Curves for Fixed Cartridge-Type Filter According to ASHRAE Standard 52.1
Fig. 1 Typical Performance Curves for Fixed Cartridge-Type Filter According to ASHRAE Standard 52.1
Dust-Holding Capacity Test
Dust-Holding Capacity Test
Fig. 2 Typical Dust-Loading Graph for Self-Renewable Air Filter
Fig. 2 Typical Dust-Loading Graph for Self-Renewable Air Filter
Fig. 2 Typical Dust-Loading Graph for Self-Renewable Air Filter
Fig. 2 Typical Dust-Loading Graph for Self-Renewable Air Filter
Particle Size Removal Efficiency Test
Particle Size Removal Efficiency Test
407 DOP Penetration Test
DOP Penetration Test
Leakage (Scan) Tests
Leakage (Scan) Tests
Specialized Performance Test
Specialized Performance Test
Other Performance Tests
Other Performance Tests
Environmental Tests
Environmental Tests
ARI Standards
ARI Standards
Types of Air Cleaners
Types of Air Cleaners
408 Filter Types and Performance
Filter Types and Performance
Panel Filters
Panel Filters
409 Electronic Air Cleaners
Electronic Air Cleaners
410 Table 1 Performance of Renewable Media Filters (Steady-State Values)
Table 1 Performance of Renewable Media Filters (Steady-State Values)
Fig. 3 Cross Section of Ionizing Electronic Air Cleaner
Fig. 3 Cross Section of Ionizing Electronic Air Cleaner
Fig. 3 Cross Section of Ionizing Electronic Air Cleaner
Fig. 3 Cross Section of Ionizing Electronic Air Cleaner
Selection and Maintenance
Selection and Maintenance
411 Residential Air Cleaners
Residential Air Cleaners
VAV Systems
VAV Systems
Antimicrobial Treatment of Filter Media
Antimicrobial Treatment of Filter Media
Air Cleaner Installation
Air Cleaner Installation
412 Table 2 Typical Filter Applications Classified by Filter Efficiency and Typea
Table 2 Typical Filter Applications Classified by Filter Efficiency and Typea
413 Table 3 Cross-Reference and Application Guidelines (Table E-1, ASHRAE Standard 52.2)
Table 3 Cross-Reference and Application Guidelines (Table E-1, ASHRAE Standard 52.2)
414 Safety Considerations
Safety Considerations
References
References
Bibliography
Bibliography
416 I-P_S08_Ch29
I-P_S08_Ch29
Equipment Selection
Equipment Selection
Regulations and Monitoring
Regulations and Monitoring
Gas-Cleaning Regulations
Gas-Cleaning Regulations
417 Measuring Gas Streams and Contaminants
Measuring Gas Streams and Contaminants
Gas Flow Distribution
Gas Flow Distribution
Monitors and Controls
Monitors and Controls
Particulate Contaminant Control
Particulate Contaminant Control
418 Table 1 Intended Duty of Gas-Cleaning Equipment
Table 1 Intended Duty of Gas-Cleaning Equipment
Table 2 Principal Types of Particulate Control Equipment
Table 2 Principal Types of Particulate Control Equipment
Collector Performance
Collector Performance
Mechanical Collectors
Mechanical Collectors
Settling Chambers
Settling Chambers
419 Table 3 Measures of Performance for Gas-Cleaning Equipment
Table 3 Measures of Performance for Gas-Cleaning Equipment
Inertial Collectors
Inertial Collectors
Fig. 1 Typical Louver and Baffle Collectors
Fig. 1 Typical Louver and Baffle Collectors
Fig. 1 Typical Louver and Baffle Collectors
Fig. 1 Typical Louver and Baffle Collectors
420 Table 4 Collectors Used in Industry
Table 4 Collectors Used in Industry
421 Table 4 Collectors Used in Industry (Continued)
Table 4 Collectors Used in Industry (Continued)
422 Table 5 Terminal Settling Velocities of Particles, fps
Table 5 Terminal Settling Velocities of Particles, fps
Electrostatic Precipitators
Electrostatic Precipitators
423 Fig. 2 Typical Cyclone Collectors
Fig. 2 Typical Cyclone Collectors
Fig. 2 Typical Cyclone Collectors
Fig. 2 Typical Cyclone Collectors
Fig. 3 Cyclone Efficiency
Fig. 3 Cyclone Efficiency
Fig. 3 Cyclone Efficiency
Fig. 3 Cyclone Efficiency
Fig. 4 Typical Single-Stage Electrostatic Precipitator
Fig. 4 Typical Single-Stage Electrostatic Precipitator
Fig. 4 Typical Single-Stage Electrostatic Precipitator
Fig. 4 Typical Single-Stage Electrostatic Precipitator
Fig. 5 Typical Two-Stage Electrostatic Precipitators
Fig. 5 Typical Two-Stage Electrostatic Precipitators
Fig. 5 Typical Two-Stage Electrostatic Precipitators
Fig. 5 Typical Two-Stage Electrostatic Precipitators
Single-Stage Designs
Single-Stage Designs
424 Fig. 6 Typical Single-Stage Precipitators
Fig. 6 Typical Single-Stage Precipitators
Fig. 6 Typical Single-Stage Precipitators
Fig. 6 Typical Single-Stage Precipitators
Two-Stage Designs
Two-Stage Designs
425 Fig. 7 Condensing Precipitator Systems for Control of Hot Organic Smokes
Fig. 7 Condensing Precipitator Systems for Control of Hot Organic Smokes
Fig. 7 Condensing Precipitator Systems for Control of Hot Organic Smokes
Fig. 7 Condensing Precipitator Systems for Control of Hot Organic Smokes
Fabric Filters
Fabric Filters
Principle of Operation
Principle of Operation
426 Pressure-Volume Relationships
Pressure-Volume Relationships
Fig. 8 Time Dependence of Pressure Drop Across Fabric Filter
Fig. 8 Time Dependence of Pressure Drop Across Fabric Filter
Fig. 8 Time Dependence of Pressure Drop Across Fabric Filter
Fig. 8 Time Dependence of Pressure Drop Across Fabric Filter
Electrostatic Augmentation
Electrostatic Augmentation
Fabrics
Fabrics
427 Table 6 Temperature Limits and Characteristics of Fabric Filter Media
Table 6 Temperature Limits and Characteristics of Fabric Filter Media
Types of Self-Cleaning Mechanisms for Fabric Dust Collectors
Types of Self-Cleaning Mechanisms for Fabric Dust Collectors
Fig. 9 Bag-Type Shaker Collector
Fig. 9 Bag-Type Shaker Collector
Fig. 9 Bag-Type Shaker Collector
Fig. 9 Bag-Type Shaker Collector
Fig. 10 Envelope-Type Shaker Collector
Fig. 10 Envelope-Type Shaker Collector
Fig. 10 Envelope-Type Shaker Collector
Fig. 10 Envelope-Type Shaker Collector
428 Fig. 11 Pressure Drop Across Shaker Collector Versus Time
Fig. 11 Pressure Drop Across Shaker Collector Versus Time
Fig. 11 Pressure Drop Across Shaker Collector Versus Time
Fig. 11 Pressure Drop Across Shaker Collector Versus Time
Fig. 12 Draw-Through Reverse Flow Cleaning of Fabric Filter
Fig. 12 Draw-Through Reverse Flow Cleaning of Fabric Filter
Fig. 12 Draw-Through Reverse-Flow Cleaning of Fabric Filter
Fig. 12 Draw-Through Reverse-Flow Cleaning of Fabric Filter
Fig. 13 Typical Pulse Jet Fabric Filter
Fig. 13 Typical Pulse Jet Fabric Filter
Fig. 13 Typical Pulse Jet Fabric Filter
Fig. 13 Typical Pulse Jet Fabric Filter
429 Fig. 14 Pulse Jet Cartridge Filters (Upflow Design with Vertical Filters)
Fig. 14 Pulse Jet Cartridge Filters (Upflow Design with Vertical Filters)
Fig. 14 Pulse Jet Cartridge Filters (Upflow Design with Vertical Filters)
Fig. 14 Pulse Jet Cartridge Filters (Upflow Design with Vertical Filters)
Granular-Bed Filters
Granular-Bed Filters
Principle of Operation
Principle of Operation
430 Fig. 15 Typical granular-bed filter
Fig. 15 Typical granular-bed filter
Fig. 15 Typical Granular-Bed Filter
Fig. 15 Typical Granular-Bed Filter
Particulate Scrubbers (Wet Collectors)
Particulate Scrubbers (Wet Collectors)
Principle of Operation
Principle of Operation
Spray Towers and Impingement Scrubbers
Spray Towers and Impingement Scrubbers
431 Fig. 16 Fractional Efficiency of Several Wet Collectors
Fig. 16 Fractional Efficiency of Several Wet Collectors
Fig. 16 Fractional Efficiency of Several Wet Collectors
Fig. 16 Fractional Efficiency of Several Wet Collectors
Fig. 17 Efficiency of Venturi Scrubber
Fig. 17 Efficiency of Venturi Scrubber
Fig. 17 Efficiency of Venturi Scrubber
Fig. 17 Efficiency of Venturi Scrubber
Fig. 18 Typical Spray Tower
Fig. 18 Typical Spray Tower
Fig. 18 Typical Spray Tower
Fig. 18 Typical Spray Tower
Fig. 19 Typical Impingement Scrubber
Fig. 19 Typical Impingement Scrubber
Fig. 19 Typical Impingement Scrubber
Fig. 19 Typical Impingement Scrubber
Centrifugal-Type Collectors
Centrifugal-Type Collectors
Orifice-Type Collectors
Orifice-Type Collectors
Venturi Scrubber
Venturi Scrubber
432 Fig. 20 Typical Orifice-Type Wet Collector
Fig. 20 Typical Orifice-Type Wet Collector
Fig. 20 Typical Orifice-Type Wet Collector
Fig. 20 Typical Orifice-Type Wet Collector
Fig. 21 Typical High-Energy Venturi Scrubber
Fig. 21 Typical High-Energy Venturi Scrubber
Fig. 21 Typical High-Energy Venturi Scrubber
Fig. 21 Typical High-Energy Venturi Scrubber
Electrostatically Augmented Scrubbers
Electrostatically Augmented Scrubbers
Fig. 22 Typical Electrostatically Augmented Scrubber
Fig. 22 Typical Electrostatically Augmented Scrubber
Fig. 22 Typical Electrostatically Augmented Scrubber
Fig. 22 Typical Electrostatically Augmented Scrubber
Gaseous Contaminant Control
Gaseous Contaminant Control
Spray Dry Scrubbing
Spray Dry Scrubbing
433 Principle of Operation
Principle of Operation
Equipment
Equipment
Wet-Packed Scrubbers
Wet-Packed Scrubbers
Scrubber Packings
Scrubber Packings
434 Table 7 Packing Factor F for Various Scrubber Packing Materials
Table 7 Packing Factor F for Various Scrubber Packing Materials
Fig. 23 Typical Packings for Scrubbers
Fig. 23 Typical Packings for Scrubbers
Fig. 23 Typical Packings for Scrubbers
Fig. 23 Typical Packings for Scrubbers
Arrangements of Packed Scrubbers
Arrangements of Packed Scrubbers
Fig. 24 Flow Arrangements Through Packed Beds
Fig. 24 Flow Arrangements Through Packed Beds
Fig. 24 Flow Arrangements Through Packed Beds
Fig. 24 Flow Arrangements Through Packed Beds
435 Fig. 25 Typical Countercurrent Packed Scrubber
Fig. 25 Typical Countercurrent Packed Scrubber
Fig. 25 Typical Countercurrent Packed Scrubber
Fig. 25 Typical Countercurrent Packed Scrubber
Fig. 26 Horizontal Flow Scrubber with Extended Surface
Fig. 26 Horizontal Flow Scrubber with Extended Surface
Fig. 26 Horizontal Flow Scrubber with Extended Surface
Fig. 26 Horizontal Flow Scrubber with Extended Surface
Fig. 27 Vertical Flow Scrubber with Extended Surface
Fig. 27 Vertical Flow Scrubber with Extended Surface
Fig. 27 Vertical Flow Scrubber with Extended Surface
Fig. 27 Vertical Flow Scrubber with Extended Surface
Pressure Drop
Pressure Drop
Fig. 28 Pressure Drop Versus Gas Rate for Typical Packing
Fig. 28 Pressure Drop Versus Gas Rate for Typical Packing
Fig. 28 Pressure Drop Versus Gas Rate for Typical Packing
Fig. 28 Pressure Drop Versus Gas Rate for Typical Packing
Absorption Efficiency
Absorption Efficiency
436 Table 8 Mass Transfer Coefficients (KG a) for Scrubber Packing Materials
Table 8 Mass Transfer Coefficients (KG a) for Scrubber Packing Materials
Table 9 Relative KG a for Various Contaminants in Liquid-Film-Controlled Scrubbers
Table 9 Relative KG a for Various Contaminants in Liquid-Film-Controlled Scrubbers
Fig. 29 Generalized Pressure Drop Curves for Packed Beds
Fig. 29 Generalized Pressure Drop Curves for Packed Beds
Fig. 29 Generalized Pressure Drop Curves for Packed Beds
Fig. 29 Generalized Pressure Drop Curves for Packed Beds
437 Fig. 30 Contaminant Control at Superficial Velocity = 120 fpm (Liquid Film Controlled)
Fig. 30 Contaminant Control at Superficial Velocity = 120 fpm (Liquid Film Controlled)
Fig. 30 Contaminant Control at Superficial Velocity = 120 fpm (Liquid-Film-Controlled)
Fig. 30 Contaminant Control at Superficial Velocity = 120 fpm (Liquid-Film-Controlled)
Fig. 31 Contaminant Control at Superficial Velocity = 120 fpm (Gas Film Controlled)
Fig. 31 Contaminant Control at Superficial Velocity = 120 fpm (Gas Film Controlled)
Fig. 31 Contaminant Control at Superficial Velocity = 240 fpm (Liquid-Film-Controlled)
Fig. 31 Contaminant Control at Superficial Velocity = 240 fpm (Liquid-Film-Controlled)
Fig. 32 Contaminant Control at Superficial Velocity = 240 fpm (Gas Film Controlled)
Fig. 32 Contaminant Control at Superficial Velocity = 240 fpm (Gas Film Controlled)
Fig. 32 Contaminant Control at Superficial Velocity = 360 fpm (Liquid-Film-Controlled)
Fig. 32 Contaminant Control at Superficial Velocity = 360 fpm (Liquid-Film-Controlled)
Fig. 33 Contaminant Control at Superficial Velocity = 360 fpm (Gas Film Controlled)
Fig. 33 Contaminant Control at Superficial Velocity = 360 fpm (Gas Film Controlled)
Fig. 33 Contaminant Control at Superficial Velocity = 120 fpm (Gas-Film-Controlled)
Fig. 33 Contaminant Control at Superficial Velocity = 120 fpm (Gas-Film-Controlled)
438 Fig. 34 Contaminant Control at Superficial Velocity = 240 fpm (Gas Film Controlled)
Fig. 34 Contaminant Control at Superficial Velocity = 240 fpm (Gas Film Controlled)
Fig. 34 Contaminant Control at Superficial Velocity = 240 fpm (Gas-Film-Controlled)
Fig. 34 Contaminant Control at Superficial Velocity = 240 fpm (Gas-Film-Controlled)
Fig. 35 Contaminant Control at Superficial Velocity = 360 fpm (Gas Film Controlled)
Fig. 35 Contaminant Control at Superficial Velocity = 360 fpm (Gas Film Controlled)
Fig. 35 Contaminant Control at Superficial Velocity = 360 fpm (Gas-Film-Controlled)
Fig. 35 Contaminant Control at Superficial Velocity = 360 fpm (Gas-Film-Controlled)
Table 10 Relative KG a for Various Contaminants in Gas-Film-Controlled Scrubbers
Table 10 Relative KG a for Various Contaminants in Gas-Film-Controlled Scrubbers
439 General Efficiency Comparisons
General Efficiency Comparisons
Liquid Effects
Liquid Effects
Adsorption of Gaseous Contaminants
Adsorption of Gaseous Contaminants
Fig. 36 Adsorption Isotherms on Activated Carbon
Fig. 36 Adsorption Isotherms on Activated Carbon
Fig. 36 Adsorption Isotherms on Activated Carbon
Fig. 36 Adsorption Isotherms on Activated Carbon
440 Equipment for Adsorption
Equipment for Adsorption
Fig. 37 Fluidized Bed Adsorption Equipment
Fig. 37 Fluidized Bed Adsorption Equipment
Fig. 37 Fluidized-Bed Adsorption Equipment
Fig. 37 Fluidized-Bed Adsorption Equipment
Solvent Recovery
Solvent Recovery
Fig. 38 Schematic of Two-Unit Fixed Bed Adsorber
Fig. 38 Schematic of Two-Unit Fixed Bed Adsorber
Fig. 38 Schematic of Two-Unit Fixed Bed Adsorber
Fig. 38 Schematic of Two-Unit Fixed Bed Adsorber
441 Odor Control
Odor Control
Fig. 39 Moving Bed Adsorber
Fig. 39 Moving Bed Adsorber
Fig. 39 Moving-Bed Adsorber
Fig. 39 Moving-Bed Adsorber
Fig. 40 Typical Odor Adsorber
Fig. 40 Typical Odor Adsorber
Fig. 40 Typical Odor Adsorber
Fig. 40 Typical Odor Adsorber
442 Applications of Fluidized Bed Adsorbers
Applications of Fluidized Bed Adsorbers
Incineration of Gases and Vapors
Incineration of Gases and Vapors
Thermal Oxidizers
Thermal Oxidizers
Catalytic Oxidizers
Catalytic Oxidizers
Applications of Oxidizers
Applications of Oxidizers
443 Adsorption and Oxidation
Adsorption and Oxidation
Auxiliary Equipment
Auxiliary Equipment
Ducts
Ducts
Temperature Controls
Temperature Controls
Fans
Fans
444 Dust- and Slurry-Handling Equipment
Dust- and Slurry-Handling Equipment
Hoppers
Hoppers
Dust Conveyors
Dust Conveyors
Dust Disposal
Dust Disposal
Slurry Treatment
Slurry Treatment
Operation and Maintenance
Operation and Maintenance
Corrosion
Corrosion
Fires and Explosions
Fires and Explosions
445 References
References
Bibliography
Bibliography
446 I-P_S08_Ch30
I-P_S08_Ch30
General Considerations
General Considerations
Terminology
Terminology
System Application
System Application
447 Safety
Safety
Efficiency and Emission Ratings
Efficiency and Emission Ratings
Steady-State and Cyclic Efficiency
Steady-State and Cyclic Efficiency
Emissions
Emissions
448 Gas-Burning Appliances
Gas-Burning Appliances
Gas-Fired Combustion Systems
Gas-Fired Combustion Systems
Burners
Burners
Fig. 1 Partially Aerated (Bunsen) Burner
Fig. 1 Partially Aerated (Bunsen) Burner
Fig. 1 Partially Aerated (Bunsen) Burner
Fig. 1 Partially Aerated (Bunsen) Burner
Fig. 2 Premix Burner
Fig. 2 Premix Burner
Fig. 2 Premix Burner
Fig. 2 Premix Burner
Combustion System Flow
Combustion System Flow
449 Fig. 3 Forced-Draft Combustion System
Fig. 3 Forced-Draft Combustion System
Fig. 3 Forced-Draft Combustion System
Fig. 3 Forced-Draft Combustion System
Fig. 4 Induced-Draft Combustion System
Fig. 4 Induced-Draft Combustion System
Fig. 4 Induced-Draft Combustion System
Fig. 4 Induced-Draft Combustion System
Fig. 5 Packaged Power Burner
Fig. 5 Packaged Power Burner
Fig. 5 Packaged Power Burner
Fig. 5 Packaged Power Burner
Ignition
Ignition
Input Rate Control
Input Rate Control
450 Fig. 6 Combustion System and Linked Air and Gas Flow
Fig. 6 Combustion System and Linked Air and Gas Flow
Fig. 6 Combustion System with Linked Air and Gas Flow
Fig. 6 Combustion System with Linked Air and Gas Flow
Fig. 7 Tracking Combustion System with Zero Regulator
Fig. 7 Tracking Combustion System with Zero Regulator
Fig. 7 Tracking Combustion System with Zero Regulator
Fig. 7 Tracking Combustion System with Zero Regulator
Residential Appliances
Residential Appliances
Boilers
Boilers
Forced-Air Furnaces
Forced-Air Furnaces
Water Heaters
Water Heaters
451 Combination Space- and Water-Heating Appliances
Combination Space- and Water-Heating Appliances
Pool Heaters
Pool Heaters
Conversion Burners
Conversion Burners
Fig. 8 Typical Single-Port Upshot Gas Conversion Burner
Fig. 8 Typical Single-Port Upshot Gas Conversion Burner
Fig. 8 Typical Single-Port Upshot Gas Conversion Burner
Fig. 8 Typical Single-Port Upshot Gas Conversion Burner
Commercial-Industrial Appliances
Commercial-Industrial Appliances
Boilers
Boilers
Space Heaters
Space Heaters
452 Water Heaters
Water Heaters
Pool Heaters
Pool Heaters
Applications
Applications
Location
Location
Gas Supply and Piping
Gas Supply and Piping
Air for Combustion and Ventilation
Air for Combustion and Ventilation
Draft Control
Draft Control
453 Venting
Venting
Building Depressurization
Building Depressurization
Gas Input Rate
Gas Input Rate
454 Effect of Gas Temperature and Barometric Pressure Changes on Gas Input Rate
Effect of Gas Temperature and Barometric Pressure Changes on Gas Input Rate
Fuel Gas Interchangeability
Fuel Gas Interchangeability
455 Altitude
Altitude
Fig. 9 Altitude Effects on Gas Combustion Appliances
Fig. 9 Altitude Effects on Gas Combustion Appliances
Fig. 9 Altitude Effects on Gas Combustion Appliances
Fig. 9 Altitude Effects on Gas Combustion Appliances
456 Oil-Burning Appliances
Oil-Burning Appliances
Residential Oil Burners
Residential Oil Burners
Fig. 10 High-Pressure Atomizing Gun Oil Burner
Fig. 10 High-Pressure Atomizing Gun Oil Burner
Fig. 10 High-Pressure Atomizing Gun Oil Burner
Fig. 10 High-Pressure Atomizing Gun Oil Burner
457 Fig. 11 Details of High-Pressure Atomizing Oil Burner
Fig. 11 Details of High-Pressure Atomizing Oil Burner
Fig. 11 Details of High-Pressure Atomizing Oil Burner
Fig. 11 Details of High-Pressure Atomizing Oil Burner
Commercial/Industrial Oil Burners
Commercial/Industrial Oil Burners
Pressure-Atomizing Oil Burners
Pressure-Atomizing Oil Burners
458 Table 1 Classification of Atomizing Oil Burners
Table 1 Classification of Atomizing Oil Burners
Return-Flow Pressure-Atomizing Oil Burners
Return-Flow Pressure-Atomizing Oil Burners
Air-Atomizing Oil Burners
Air-Atomizing Oil Burners
Horizontal Rotary Cup Oil Burners
Horizontal Rotary Cup Oil Burners
Steam-Atomizing Oil Burners (Register Type)
Steam-Atomizing Oil Burners (Register Type)
459 Mechanical Atomizing Oil Burners (Register Type)
Mechanical Atomizing Oil Burners (Register Type)
Return-Flow Mechanical Atomizing Oil Burners
Return-Flow Mechanical Atomizing Oil Burners
Dual-Fuel Gas/Oil Burners
Dual-Fuel Gas/Oil Burners
Equipment Selection
Equipment Selection
Fuel Oil Storage Systems
Fuel Oil Storage Systems
460 Table 2 Guide for Fuel Oil Grades Versus Firing Rate
Table 2 Guide for Fuel Oil Grades Versus Firing Rate
Fig. 12 Typical Oil Storage Tank (No. 6 Oil)
Fig. 12 Typical Oil Storage Tank (No. 6 Oil)
Fig. 12 Typical Oil Storage Tank (No. 6 Oil)
Fig. 12 Typical Oil Storage Tank (No. 6 Oil)
Fuel-Handling Systems
Fuel-Handling Systems
461 Fig. 13 Industrial Burner Auxiliary Equipment
Fig. 13 Industrial Burner Auxiliary Equipment
Fig. 13 Industrial Burner Auxiliary Equipment
Fig. 13 Industrial Burner Auxiliary Equipment
Fuel Oil Preparation System
Fuel Oil Preparation System
462 Solid-Fuel-Burning Appliances
Solid-Fuel-Burning Appliances
Capacity Classification of Stokers
Capacity Classification of Stokers
Fig. 14 Horizontal Underfeed Stoker with Single Retort
Fig. 14 Horizontal Underfeed Stoker with Single Retort
Fig. 14 Horizontal Underfeed Stoker with Single Retort
Fig. 14 Horizontal Underfeed Stoker with Single Retort
Stoker Types by Fuel-Feed Methods
Stoker Types by Fuel-Feed Methods
Spreader Stokers
Spreader Stokers
463 Table 3 Characteristics of Various Types of Stokers (Class 5)
Table 3 Characteristics of Various Types of Stokers (Class 5)
Fig. 15 Spreader Stoker, Traveling Grate Type
Fig. 15 Spreader Stoker, Traveling Grate Type
Fig. 15 Spreader Stoker, Traveling Grate Type
Fig. 15 Spreader Stoker, Traveling Grate Type
Underfeed Stokers
Underfeed Stokers
Chain and Traveling Grate Stokers
Chain and Traveling Grate Stokers
464 Fig. 16 Chain Grate Stoker
Fig. 16 Chain Grate Stoker
Fig. 16 Chain Grate Stoker
Fig. 16 Chain Grate Stoker
Fig. 17 Vibrating Grate Stoker
Fig. 17 Vibrating Grate Stoker
Fig. 17 Vibrating Grate Stoker
Fig. 17 Vibrating Grate Stoker
Vibrating Grate Stokers
Vibrating Grate Stokers
Controls
Controls
Fig. 18 Basic Control Circuit for Fuel-Burning Appliance
Fig. 18 Basic Control Circuit for Fuel-Burning Appliance
Fig. 18 Basic Control Circuit for Fuel-Burning Appliance
Fig. 18 Basic Control Circuit for Fuel-Burning Appliance
Safety Controls and Interlocks
Safety Controls and Interlocks
465 Ignition and Flame Monitoring
Ignition and Flame Monitoring
Draft Proving
Draft Proving
Limit Controls
Limit Controls
Other Safety Controls
Other Safety Controls
Prescriptive Requirements for Safety Controls
Prescriptive Requirements for Safety Controls
Reliability of Safety Controls
Reliability of Safety Controls
466 Operating Controls
Operating Controls
Fig. 19 Control Characteristics of Three-Stage System
Fig. 19 Control Characteristics of Three-Stage System
Fig. 19 Control Characteristics of Three-Stage System
Fig. 19 Control Characteristics of Three-Stage System
467 Integrated and Programmed Controls
Integrated and Programmed Controls
Fig. 20 Integrated Control System for Gas-Fired Appliance
Fig. 20 Integrated Control System for Gas-Fired Appliance
Fig. 20 Integrated Control System for Gas-Fired Appliance
Fig. 20 Integrated Control System for Gas-Fired Appliance
References
References
468 Bibliography
Bibliography
469 I-P_S08_Ch31
I-P_S08_Ch31
Classifications
Classifications
Working Pressure and Temperature
Working Pressure and Temperature
Fuel Used
Fuel Used
Construction Materials
Construction Materials
470 Fig. 1 Residential Boilers
Fig. 1 Residential Boilers
Fig. 1 Residential Boilers
Fig. 1 Residential Boilers
Fig. 2 Cast-Iron Commercial Boilers
Fig. 2 Cast-Iron Commercial Boilers
Fig. 2 Cast-Iron Commercial Boilers
Fig. 2 Cast-Iron Commercial Boilers
471 Fig. 3 Scotch Marine Commercial Boilers
Fig. 3 Scotch Marine Commercial Boilers
Fig. 3 Scotch Marine Commercial Boilers
Fig. 3 Scotch Marine Commercial Boilers
Fig. 4 Commercial Fire-Tube and Water-Tube Boilers
Fig. 4 Commercial Fire-Tube and Water-Tube Boilers
Fig. 4 Commercial Fire-Tube and Water-Tube Boilers
Fig. 4 Commercial Fire-Tube and Water-Tube Boilers
Type of Draft
Type of Draft
Condensing or Noncondensing
Condensing or Noncondensing
472 Fig. 5 Commercial Condensing Boilers
Fig. 5 Commercial Condensing Boilers
Fig. 5 Commercial Condensing Boilers
Fig. 5 Commercial Condensing Boilers
Fig. 6 Effect of Inlet Water Temperature on Efficiency of Condensing Boilers
Fig. 6 Effect of Inlet Water Temperature on Efficiency of Condensing Boilers
Fig. 6 Effect of Inlet Water Temperature on Efficiency of Condensing Boilers
Fig. 6 Effect of Inlet Water Temperature on Efficiency of Condensing Boilers
Fig. 7 Relationship of Dew Point, Carbon Dioxide, and Combustion Efficiency for Natural Gas
Fig. 7 Relationship of Dew Point, Carbon Dioxide, and Combustion Efficiency for Natural Gas
Fig. 7 Relationship of Dew Point, Carbon Dioxide, and Combustion Efficiency for Natural Gas
Fig. 7 Relationship of Dew Point, Carbon Dioxide, and Combustion Efficiency for Natural Gas
Wall Hung Boilers
Wall Hung Boilers
Integrated (Combination) Boilers
Integrated (Combination) Boilers
Electric Boilers
Electric Boilers
473 Selection Parameters
Selection Parameters
Efficiency: Input and Output Ratings
Efficiency: Input and Output Ratings
Fig. 8 Boiler Efficiency as Function of Fuel and Air Input
Fig. 8 Boiler Efficiency as Function of Fuel and Air Input
Fig. 8 Boiler Efficiency as Function of Fuel and Air Input
Fig. 8 Boiler Efficiency as Function of Fuel and Air Input
Performance Codes and Standards
Performance Codes and Standards
474 Sizing
Sizing
Burner Types
Burner Types
BOILER CONTROLS
BOILER CONTROLS
Operating Controls
Operating Controls
475 Water Level Controls
Water Level Controls
Flame Safeguard Controls
Flame Safeguard Controls
References
References
Bibliography
Bibliography
476 I-P_S08_Ch32
I-P_S08_Ch32
Fig. 1 Induced-Draft Gas Furnace
Fig. 1 Induced-Draft Gas Furnace
Fig. 1 Induced-Draft Gas Furnace
Fig. 1 Induced-Draft Gas Furnace
Components
Components
Casing or Cabinet
Casing or Cabinet
Heat Exchangers
Heat Exchangers
477 Combustion Venting Components
Combustion Venting Components
Circulating Blowers and Motors
Circulating Blowers and Motors
Filters and Other Accessories
Filters and Other Accessories
478 Airflow Variations
Airflow Variations
Fig. 2 Upflow Category I Furnace with Induced-Draft Blower
Fig. 2 Upflow Category I Furnace with Induced-Draft Blower
Fig. 2 Upflow Category I Furnace with Induced-Draft Blower
Fig. 2 Upflow Category I Furnace with Induced-Draft Blower
Fig. 3 Downflow (Counterflow) Category I Furnace with Induced-Draft Blower
Fig. 3 Downflow (Counterflow) Category I Furnace with Induced-Draft Blower
Fig. 3 Downflow (Counterflow) Category I Furnace with Induced-Draft Blower
Fig. 3 Downflow (Counterflow) Category I Furnace with Induced-Draft Blower
Fig. 4 Horizontal Category I Furnace with Induced-Draft Blower
Fig. 4 Horizontal Category I Furnace with Induced-Draft Blower
Fig. 4 Horizontal Category I Furnace with Induced-Draft Blower
Fig. 4 Horizontal Category I Furnace with Induced-Draft Blower
Fig. 5 Basement (Lowboy) Category I Furnace with Induced-Draft Blower
Fig. 5 Basement (Lowboy) Category I Furnace with Induced-Draft Blower
Fig. 5 Basement (Lowboy) Category I Furnace with Induced-Draft Blower
Fig. 5 Basement (Lowboy) Category I Furnace with Induced-Draft Blower
479 Combustion System Variations
Combustion System Variations
Fig. 6 Terminology Used to Describe Fan-Assisted Combustion
Fig. 6 Terminology Used to Describe Fan-Assisted Combustion
Fig. 6 Terminology Used to Describe Fan-Assisted Combustion
Fig. 6 Terminology Used to Describe Fan-Assisted Combustion
Indoor/Outdoor Furnace Variations
Indoor/Outdoor Furnace Variations
Heat Source Types
Heat Source Types
Natural Gas and Propane Furnaces
Natural Gas and Propane Furnaces
Oil Furnaces
Oil Furnaces
Electric Furnaces
Electric Furnaces
480 Fig. 7 Electric Forced-Air Furnace
Fig. 7 Electric Forced-Air Furnace
Fig. 7 Electric Forced-Air Furnace
Fig. 7 Electric Forced-Air Furnace
Commercial Equipment
Commercial Equipment
Ducted Equipment
Ducted Equipment
Unducted Heaters
Unducted Heaters
Fig. 8 Standing Floor Furnace
Fig. 8 Standing Floor Furnace
Fig. 8 Standing Floor Furnace
Fig. 8 Standing Floor Furnace
Controls and Operating Characteristics
Controls and Operating Characteristics
External to Furnace
External to Furnace
481 Internal to Furnace
Internal to Furnace
Equipment Selection
Equipment Selection
Distribution System
Distribution System
Equipment Location
Equipment Location
Forced-Air System Primary Use
Forced-Air System Primary Use
482 Fuel Selection
Fuel Selection
Combustion Air and Venting
Combustion Air and Venting
Equipment Sizing
Equipment Sizing
Types of Furnaces
Types of Furnaces
Consumer Considerations
Consumer Considerations
483 Selecting Furnaces for Commercial Buildings
Selecting Furnaces for Commercial Buildings
Calculations
Calculations
484 Table 1 Typical Values of Efficiency
Table 1 Typical Values of Efficiency
Technical Data
Technical Data
Natural Gas Furnaces
Natural Gas Furnaces
485 Propane Furnaces
Propane Furnaces
Oil Furnaces
Oil Furnaces
Electric Furnaces
Electric Furnaces
Commercial Furnaces
Commercial Furnaces
Installation
Installation
486 Agency Listings
Agency Listings
References
References
487 Bibliography
Bibliography
488 I-P_S08_Ch33
I-P_S08_Ch33
Gas In-Space Heaters
Gas In-Space Heaters
Room Heaters
Room Heaters
Fig. 1 Room Heater
Fig. 1 Room Heater
Fig. 1 Room Heater
Fig. 1 Room Heater
Wall Furnaces
Wall Furnaces
489 Fig. 2 Wall Furnace
Fig. 2 Wall Furnace
Fig. 2 Wall Furnace
Fig. 2 Wall Furnace
Fig. 3 Floor Furnace
Fig. 3 Floor Furnace
Fig. 3 Floor Furnace
Fig. 3 Floor Furnace
Floor Furnaces
Floor Furnaces
Table 1 Efficiency Requirements in the United States for Gas-Fired Direct Heating Equipment
Table 1 Efficiency Requirements in the United States for Gas-Fired Direct Heating Equipment
United States Minimum Efficiency Requirements
United States Minimum Efficiency Requirements
Controls
Controls
Valves
Valves
Thermostats
Thermostats
490 Table 2 Gas Input Required for In-Space Supplemental Heaters
Table 2 Gas Input Required for In-Space Supplemental Heaters
Vent Connectors
Vent Connectors
Sizing Units
Sizing Units
Oil and Kerosene In-Space Heaters
Oil and Kerosene In-Space Heaters
Vaporizing Oil Pot Heaters
Vaporizing Oil Pot Heaters
Fig. 4 Oil-Fueled Heater with Vaporizing Pot-Type Burner
Fig. 4 Oil-Fueled Heater with Vaporizing Pot-Type Burner
Fig. 4 Oil-Fueled Heater with Vaporizing Pot-Type Burner
Fig. 4 Oil-Fueled Heater with Vaporizing Pot-Type Burner
Powered Atomizing Heaters
Powered Atomizing Heaters
Portable Kerosene Heaters
Portable Kerosene Heaters
Electric In-Space Heaters
Electric In-Space Heaters
Wall, Floor, Toe Space, and Ceiling Heaters
Wall, Floor, Toe Space, and Ceiling Heaters
Baseboard Heaters
Baseboard Heaters
491 Radiant Heating Systems
Radiant Heating Systems
Heating Panels and Heating Panel Sets
Heating Panels and Heating Panel Sets
Embedded Cable and Storage Heating Systems
Embedded Cable and Storage Heating Systems
Cord-Connected Portable Heaters
Cord-Connected Portable Heaters
Controls
Controls
Solid-Fuel In-Space Heaters
Solid-Fuel In-Space Heaters
Fireplaces
Fireplaces
Simple Fireplaces
Simple Fireplaces
Factory-Built Fireplaces
Factory-Built Fireplaces
492 Table 3 Solid-Fuel In-Space Heaters
Table 3 Solid-Fuel In-Space Heaters
Freestanding Fireplaces
Freestanding Fireplaces
Stoves
Stoves
Conventional Wood Stoves
Conventional Wood Stoves
Advanced-Design Wood Stoves
Advanced-Design Wood Stoves
Fireplace Inserts
Fireplace Inserts
493 Pellet-Burning Stoves
Pellet-Burning Stoves
General Installation Practices
General Installation Practices
Table 4 Chimney Connector Wall Thickness*
Table 4 Chimney Connector Wall Thickness*
Safety with Solid Fuels
Safety with Solid Fuels
Utility-Furnished Energy
Utility-Furnished Energy
Products of Combustion
Products of Combustion
494 Agency Testing
Agency Testing
References
References
Bibliography
Bibliography
495 I-P_S08_Ch34
I-P_S08_Ch34
Terminology
Terminology
Draft Operating Principles
Draft Operating Principles
496 Chimney Functions
Chimney Functions
Start-Up
Start-Up
Air Intakes
Air Intakes
497 Vent Size
Vent Size
Draft Control
Draft Control
Pollution Control
Pollution Control
Equipment Location
Equipment Location
Wind Effects
Wind Effects
Safety Factors
Safety Factors
Steady-State Chimney Design Equations
Steady-State Chimney Design Equations
498 1. Mass Flow of Combustion Products in Chimneys and Vents
1. Mass Flow of Combustion Products in Chimneys and Vents
Table 1 Mass Flow Equations for Common Fuels
Table 1 Mass Flow Equations for Common Fuels
Fig. 1 Graphical Evaluation of Rate of Vent Gas Flow from Percent CO2 and Fuel Rate
Fig. 1 Graphical Evaluation of Rate of Vent Gas Flow from Percent CO2 and Fuel Rate
Fig. 1 Graphical Evaluation of Rate of Vent Gas Flow from Percent CO2 and Fuel Rate
Fig. 1 Graphical Evaluation of Rate of Vent Gas Flow from Percent CO2 and Fuel Rate
499 Table 2 Typical Chimney and Vent Design Conditionsa
Table 2 Typical Chimney and Vent Design Conditionsa
Fig. 2 Flue Gas Mass and Volumetric Flow
Fig. 2 Flue Gas Mass and Volumetric Flow
Fig. 2 Flue Gas Mass and Volumetric Flow
Fig. 2 Flue Gas Mass and Volumetric Flow
Table 3 Mass Flow for Incinerator Chimneys
Table 3 Mass Flow for Incinerator Chimneys
2. Mean Chimney Gas Temperature and Density
2. Mean Chimney Gas Temperature and Density
500 Table 4 Mean Chimney Gas Temperature for Various Appliances
Table 4 Mean Chimney Gas Temperature for Various Appliances
Table 5 Overall Heat Transfer Coefficients of Various Chimneys and Vents
Table 5 Overall Heat Transfer Coefficients of Various Chimneys and Vents
Fig. 3 Temperature Multiplier Cu for Compensation of Heat Losses in Connector
Fig. 3 Temperature Multiplier Cu for Compensation of Heat Losses in Connector
Fig. 3 Temperature Multiplier Cu for Compensation of Heat Losses in Connector
Fig. 3 Temperature Multiplier Cu for Compensation of Heat Losses in Connector
501 3. Theoretical Draft
3. Theoretical Draft
Table 6 Approximate Theoretical Draft of Chimneys
Table 6 Approximate Theoretical Draft of Chimneys
Fig. 4 Theoretical Draft Nomograph
Fig. 4 Theoretical Draft Nomograph
Fig. 4 Theoretical Draft Nomograph
Fig. 4 Theoretical Draft Nomograph
502 Table 7 Input Altitude Factor for Equation (21) Theoretical Draft
Table 7 Input Altitude Factor for Equation (21) Theoretical Draft
4. System Pressure Loss Caused by Flow
4. System Pressure Loss Caused by Flow
Table 8 Pressure Equations for Dp
Table 8 Pressure Equations for Dp
5. Available Draft
5. Available Draft
6. Chimney Gas Velocity
6. Chimney Gas Velocity
503 Table 9 Resistance Loss Coefficients
Table 9 Resistance Loss Coefficients
7. System Resistance Coefficient
7. System Resistance Coefficient
504 Fig. 5 Friction Factor for Commercial Iron and Steel Pipe
Fig. 5 Friction Factor for Commercial Iron and Steel Pipe
Fig. 5 Friction Factor for Commercial Iron and Steel Pipe
Fig. 5 Friction Factor for Commercial Iron and Steel Pipe
Configuration and Manifolding Effects
Configuration and Manifolding Effects
505 Fig. 6 Connector Design
Fig. 6 Connector Design
Fig. 6 Connector Design
Fig. 6 Connector Design
8. Input, Diameter, and Temperature Relationships
8. Input, Diameter, and Temperature Relationships
506 9. Volumetric Flow in Chimney or System
9. Volumetric Flow in Chimney or System
10. Graphical Solution of Chimney or Vent System
10. Graphical Solution of Chimney or Vent System
Steady-State Chimney Design Graphical Solutions
Steady-State Chimney Design Graphical Solutions
507 Fig. 7 Design Chart for Vents, Chimneys, and Ducts
Fig. 7 Design Chart for Vents, Chimneys, and Ducts
Fig. 7 Design Chart for Vents, Chimneys, and Ducts
Fig. 7 Design Chart for Vents, Chimneys, and Ducts
508 Vent and Chimney Capacity Calculation Examples
Vent and Chimney Capacity Calculation Examples
Fig. 8 Gas Vent with Lateral
Fig. 8 Gas Vent with Lateral
Fig. 8 Gas Vent with Lateral
Fig. 8 Gas Vent with Lateral
509 Fig. 9 Draft-Regulated Appliance with 0.10 in. of water gage Available Draft Required
Fig. 9 Draft-Regulated Appliance with 0.10 in. of water gage Available Draft Required
Fig. 9 Draft-Regulated Appliance with 0.10 in. of water Available Draft Required
Fig. 9 Draft-Regulated Appliance with 0.10 in. of water Available Draft Required
Fig. 10 Forced-Draft Appliance with Neutral (Zero) Draft (Negative Pressure Lateral)
Fig. 10 Forced-Draft Appliance with Neutral (Zero) Draft (Negative Pressure Lateral)
Fig. 10 Forced-Draft Appliance with Neutral (Zero) Draft (Negative Pressure Lateral)
Fig. 10 Forced-Draft Appliance with Neutral (Zero) Draft (Negative Pressure Lateral)
Fig. 11 Forced-Draft Appliance with Positive Outlet Pressure
Fig. 11 Forced-Draft Appliance with Positive Outlet Pressure
Fig. 11 Forced-Draft Appliance with Positive Outlet Pressure (Negative Draft)
Fig. 11 Forced-Draft Appliance with Positive Outlet Pressure (Negative Draft)
510 Fig. 12 Illustration for Example 2
Fig. 12 Illustration for Example 2
Fig. 12 Illustration for Example 2
Fig. 12 Illustration for Example 2
Fig. 13 Illustration for Example 3
Fig. 13 Illustration for Example 3
Fig. 13 Illustration for Example 3
Fig. 13 Illustration for Example 3
511 Fig. 14 Illustration for Example 4
Fig. 14 Illustration for Example 4
Fig. 14 Illustration for Example 4
Fig. 14 Illustration for Example 4
512 Fig. 15 Illustration for Example 5
Fig. 15 Illustration for Example 5
Fig. 15 Illustration for Example 5
Fig. 15 Illustration for Example 5
513 Fig. 16 Illustration for Example 7
Fig. 16 Illustration for Example 7
Fig. 16 Illustration for Example 7
Fig. 16 Illustration for Example 7
Gas Appliance Venting
Gas Appliance Venting
514 Fig. 17 Typical Fan Operating Data and System Curves
Fig. 17 Typical Fan Operating Data and System Curves
Fig. 17 Typical Fan Operating Data and System Curves
Fig. 17 Typical Fan Operating Data and System Curves
Vent Connectors
Vent Connectors
Masonry Chimneys for Gas Appliances
Masonry Chimneys for Gas Appliances
Type B and Type L Factory-Built Venting Systems
Type B and Type L Factory-Built Venting Systems
515 Gas Appliances Without Draft Hoods
Gas Appliances Without Draft Hoods
Conversion to Gas
Conversion to Gas
Oil-Fired Appliance Venting
Oil-Fired Appliance Venting
Condensation and Corrosion
Condensation and Corrosion
516 Connector and Chimney Corrosion
Connector and Chimney Corrosion
Vent Connectors
Vent Connectors
Masonry Chimneys for Oil-Fired Appliances
Masonry Chimneys for Oil-Fired Appliances
Replacement of Appliances
Replacement of Appliances
517 Fireplace Chimneys
Fireplace Chimneys
518 Fig. 18 Eddy Formation
Fig. 18 Eddy Formation
Fig. 18 Eddy Formation
Fig. 18 Eddy Formation
Fig. 19 Effect of Chimney Gas Temperature on Fireplace Frontal Opening Velocity
Fig. 19 Effect of Chimney Gas Temperature on Fireplace Frontal Opening Velocity
Fig. 19 Effect of Chimney Gas (Combustion Products) Temperature on Fireplace Frontal Opening Velocity
Fig. 19 Effect of Chimney Gas (Combustion Products) Temperature on Fireplace Frontal Opening Velocity
519 Fig. 20 Permissible Fireplace Frontal Opening Area for Design Conditions (0.8 fps mean frontal velocity with 12 in. inside diameter round flue)
Fig. 20 Permissible Fireplace Frontal Opening Area for Design Conditions (0.8 fps mean frontal velocity with 12 in. inside diameter round flue)
Fig. 20 Permissible Fireplace Frontal Opening Area for Design Conditions (0.8 fps mean frontal velocity with 12 in. inside diameter round flue)
Fig. 20 Permissible Fireplace Frontal Opening Area for Design Conditions (0.8 fps mean frontal velocity with 12 in. inside diameter round flue)
Fig. 21 Effect of Area Ratio on Frontal Velocity for Constant Chimney Height of 15 ft with 12 in. Inside Diameter Round Flue
Fig. 21 Effect of Area Ratio on Frontal Velocity for Constant Chimney Height of 15 ft with 12 in. Inside Diameter Round Flue
Fig. 21 Effect of Area Ratio on Frontal Velocity (for chimney height of 15 ft with 12 in. inside diameter round flue)
Fig. 21 Effect of Area Ratio on Frontal Velocity (for chimney height of 15 ft with 12 in. inside diameter round flue)
520 Fig. 22 Variation of Chimney Gas Temperature with Heat Content for Combustion Gas
Fig. 22 Variation of Chimney Gas Temperature with Heat Content for Combustion Gas
Fig. 22 Variation of Chimney Flue Gas Temperature with Heat Input Rate of Combustion Products
Fig. 22 Variation of Chimney Flue Gas Temperature with Heat Input Rate of Combustion Products
Fig. 23 Chimney Sizing Chart for Fireplaces
Fig. 23 Chimney Sizing Chart for Fireplaces
Fig. 23 Chimney Sizing Chart for Fireplaces
Fig. 23 Chimney Sizing Chart for Fireplaces
521 Fig. 24 Estimation of Fireplace Frontal Area
Fig. 24 Estimation of Fireplace Frontal Area
Fig. 24 Estimation of Fireplace Frontal Opening Area
Fig. 24 Estimation of Fireplace Frontal Opening Area
522 Air Supply to Fuel-Burning Appliances
Air Supply to Fuel-Burning Appliances
Vent and Chimney Materials
Vent and Chimney Materials
523 Fig. 25 Building Heating Appliance, Medium-Heat Chimney
Fig. 25 Building Heating Appliance, Medium-Heat Chimney
Fig. 25 Building Heating Appliance, Medium-Heat Chimney
Fig. 25 Building Heating Appliance, Medium-Heat Chimney
524 Table 10 Underwriters Laboratories Test Standards
Table 10 Underwriters Laboratories Test Standards
Vent and Chimney Accessories
Vent and Chimney Accessories
Draft Hoods
Draft Hoods
Draft Regulators
Draft Regulators
Vent Dampers
Vent Dampers
525 Fig. 26 Use of Barometric Draft Regulators
Fig. 26 Use of Barometric Draft Regulators
Fig. 26 Use of Barometric Draft Regulators
Fig. 26 Use of Barometric Draft Regulators
Heat Exchangers or Flue Gas Heat Extractors
Heat Exchangers or Flue Gas Heat Extractors
Draft Fans
Draft Fans
526 Fig. 27 Draft Inducers
Fig. 27 Draft Inducers
Fig. 27 Draft Inducers
Fig. 27 Draft Inducers
Terminations: Caps and Wind Effects
Terminations: Caps and Wind Effects
527 Fig. 28 Wind Eddy and Wake Zones for One- or Two-Story Buildings and Their Effect on Chimney Gas Discharge
Fig. 28 Wind Eddy and Wake Zones for One- or Two-Story Buildings and Their Effect on Chimney Gas Discharge
Fig. 28 Wind Eddy and Wake Zones for One- or Two-Story Buildings and Their Effect on Chimney Gas Discharge
Fig. 28 Wind Eddy and Wake Zones for One- or Two-Story Buildings and Their Effect on Chimney Gas Discharge
Fig. 29 Height of Eddy Currents Around Single High-Rise Buildings
Fig. 29 Height of Eddy Currents Around Single High-Rise Buildings
Fig. 29 Height of Eddy Currents Around Single High-Rise Buildings
Fig. 29 Height of Eddy Currents Around Single High-Rise Buildings
Fig. 30 Eddy and Wake Zones for Low, Wide Buildings
Fig. 30 Eddy and Wake Zones for Low, Wide Buildings
Fig. 30 Eddy and Wake Zones for Low, Wide Buildings
Fig. 30 Eddy and Wake Zones for Low, Wide Buildings
528 Table 11 List of U.S. National Standards Relating to Installationa
Table 11 List of U.S. National Standards Relating to Installationa
Fig. 31 Vent and Chimney Rain Protection
Fig. 31 Vent and Chimney Rain Protection
Fig. 31 Vent and Chimney Rain Protection
Fig. 31 Vent and Chimney Rain Protection
529 Codes and Standards
Codes and Standards
Conversion Factors
Conversion Factors
Symbols
Symbols
References
References
530 Bibliography
Bibliography
531 I-P_S08_Ch35
I-P_S08_Ch35
Description
Description
Radiators
Radiators
Pipe Coils
Pipe Coils
Convectors
Convectors
Baseboard Units
Baseboard Units
Finned-Tube Units
Finned-Tube Units
532 Fig. 1 Terminal Units
Fig. 1 Terminal Units
Fig. 1 Terminal Units
Fig. 1 Terminal Units
Fig. 2 Typical Radiators
Fig. 2 Typical Radiators
Fig. 2 Typical Radiators
Fig. 2 Typical Radiators
Heat Emission
Heat Emission
Ratings of Heat-Distributing Units
Ratings of Heat-Distributing Units
Radiators
Radiators
Convectors
Convectors
533 Table 1 Small-Tube Cast-Iron Radiators
Table 1 Small-Tube Cast-Iron Radiators
Baseboard Units
Baseboard Units
Finned-Tube Units
Finned-Tube Units
Other Heat-Distributing Units
Other Heat-Distributing Units
Corrections for Nonstandard Conditions
Corrections for Nonstandard Conditions
Design
Design
Effect of Water Velocity
Effect of Water Velocity
534 Table 2 Correction Factors c for Various Types of Heating Units
Table 2 Correction Factors c for Various Types of Heating Units
Fig. 3 Water Velocity Correction Factor for Baseboard and Finned-Tube Radiators
Fig. 3 Water Velocity Correction Factor for Baseboard and Finned-Tube Radiators
Fig. 3 Water Velocity Correction Factor for Baseboard and Finned-Tube Radiators
Fig. 3 Water Velocity Correction Factor for Baseboard and Finned-Tube Radiators
Fig. 4 Effect of Air Density on Radiator Output
Fig. 4 Effect of Air Density on Radiator Output
Fig. 4 Effect of Air Density on Radiator Output
Fig. 4 Effect of Air Density on Radiator Output
535 Effect of Altitude
Effect of Altitude
Effect of Mass
Effect of Mass
Performance at Low Water Temperatures
Performance at Low Water Temperatures
Effect of Enclosure and Paint
Effect of Enclosure and Paint
Applications
Applications
Radiators
Radiators
Convectors
Convectors
Baseboard Radiation
Baseboard Radiation
Finned-Tube Radiation
Finned-Tube Radiation
536 Radiant Panels
Radiant Panels
References
References
Bibliography
Bibliography
537 I-P_S08_Ch36
I-P_S08_Ch36
Solar Heating Systems
Solar Heating Systems
Air-Heating Systems
Air-Heating Systems
Fig. 1 Both
Fig. 1 Both
Fig. 1 Air-Heating Space and Domestic Water Heater System
Fig. 1 Air-Heating Space and Domestic Water Heater System
538 Liquid-Heating Systems
Liquid-Heating Systems
Fig. 2 Both
Fig. 2 Both
Fig. 2 Simplified Schematic of Indirect Nonfreezing System
Fig. 2 Simplified Schematic of Indirect Nonfreezing System
Fig. 3 Both
Fig. 3 Both
Fig. 3 Simplified Schematic of Indirect Drainback Freeze Protection System
Fig. 3 Simplified Schematic of Indirect Drainback Freeze Protection System
Direct and Indirect Systems
Direct and Indirect Systems
Freeze Protection
Freeze Protection
539 Solar Thermal Energy Collectors
Solar Thermal Energy Collectors
Collector Types
Collector Types
Fig. 4 Both
Fig. 4 Both
Fig. 4 Solar Flat-Plate Collectors
Fig. 4 Solar Flat-Plate Collectors
Fig. 5 Both
Fig. 5 Both
Fig. 5 Evacuated-Tube Collector
Fig. 5 Evacuated-Tube Collector
540 Collector Construction
Collector Construction
Fig. 6 Both
Fig. 6 Both
Fig. 6 Plan View of Liquid Collector Absorber Plates
Fig. 6 Plan View of Liquid Collector Absorber Plates
541 Fig. 7 Both
Fig. 7 Both
Fig. 7 Cross Sections of Various Solar Air and Water Heater
Fig. 7 Cross Sections of Various Solar Air and Water Heater
Fig. 8 Both
Fig. 8 Both
Fig. 8 Cross Section of Suggested Insulation to Reduce Heat Loss from Back Surface of Absorber
Fig. 8 Cross Section of Suggested Insulation to Reduce Heat Loss from Back Surface of Absorber
Row Design
Row Design
Piping Configuration
Piping Configuration
542 Fig. 9 Both
Fig. 9 Both
Fig. 9 Collector Manifolding Arrangements for Parallel-Flow Row
Fig. 9 Collector Manifolding Arrangements for Parallel-Flow Row
Fig. 10 IP
Fig. 10 IP
Fig. 10 Pressure Drop and Thermal Performance of Collectors with Internal Manifolds Numbers
Fig. 10 Pressure Drop and Thermal Performance of Collectors with Internal Manifolds Numbers
Fig. 11 IP
Fig. 11 IP
Fig. 11 Flow Pattern in Long Collector Row with Restrictions
Fig. 11 Flow Pattern in Long Collector Row with Restrictions
Velocity Limitations
Velocity Limitations
Thermal Expansion
Thermal Expansion
543 Fig. 12 Both
Fig. 12 Both
Fig. 12 Reverse-Return Array Piping
Fig. 12 Reverse-Return Array Piping
Array Design
Array Design
Piping Configuration
Piping Configuration
Fig. 13 Both
Fig. 13 Both
Fig. 13 Mounting for Drainback Collector Modules
Fig. 13 Mounting for Drainback Collector Modules
Fig. 14 Both
Fig. 14 Both
Fig. 14 Direct-Return Array Piping
Fig. 14 Direct-Return Array Piping
544 Shading
Shading
Thermal Collector Performance
Thermal Collector Performance
Fig. 15 Both
Fig. 15 Both
Fig. 15 Solar Collector Type Efficiencies
Fig. 15 Solar Collector Type Efficiencies
545 Testing Methods
Testing Methods
Collector Test Results and Initial Screening Methods
Collector Test Results and Initial Screening Methods
Generic Test Results
Generic Test Results
546 Table 1 Average Performance Parameters* for Generic Types of Liquid Flat-Plate Collectors
Table 1 Average Performance Parameters* for Generic Types of Liquid Flat-Plate Collectors
Table 2 Thermal Performance Ratings* for Generic Types of Liquid Flat-Plate Collectors, Btu/ft2 · day
Table 2 Thermal Performance Ratings* for Generic Types of Liquid Flat-Plate Collectors, Btu/ft2 · day
Thermal Energy Storage
Thermal Energy Storage
Air System Thermal Storage
Air System Thermal Storage
Liquid System Thermal Storage
Liquid System Thermal Storage
547 Fig. 16 Both
Fig. 16 Both
Fig. 16 Pressurized Storage with Internal Heat Exchanger
Fig. 16 Pressurized Storage with Internal Heat Exchanger
Fig. 17 Both
Fig. 17 Both
Fig. 17 Multiple Storage Tank Arrangement with Internal Heat Exchangers
Fig. 17 Multiple Storage Tank Arrangement with Internal Heat Exchangers
Fig. 18 Both
Fig. 18 Both
Fig. 18 Pressurized Storage System with External Heat Exchanger
Fig. 18 Pressurized Storage System with External Heat Exchanger
548 Fig. 19 Both
Fig. 19 Both
Fig. 19 Unpressurized Storage System with External Heat Exchanger
Fig. 19 Unpressurized Storage System with External Heat Exchanger
Storage Tank Construction
Storage Tank Construction
Storage Tank Insulation
Storage Tank Insulation
549 Table 3 Insulation Factor fQ/Aq for Cylindrical Water Tanks
Table 3 Insulation Factor fQ/Aq for Cylindrical Water Tanks
Stratification and Short Circuiting
Stratification and Short Circuiting
Fig. 20 IP
Fig. 20 IP
Fig. 20 Typical Tank Support Detail
Fig. 20 Typical Tank Support Detail
550 Fig. 21 Both
Fig. 21 Both
Fig. 21 Tank Plumbing Arrangements to Minimize Short Circuiting and Mixing
Fig. 21 Tank Plumbing Arrangements to Minimize Short Circuiting and Mixing
Storage Sizing
Storage Sizing
Heat Exchangers
Heat Exchangers
Requirements
Requirements
Internal Heat Exchanger
Internal Heat Exchanger
551 Fig. 22 Both
Fig. 22 Both
Fig. 22 Cross Section of Wraparound Shell Heat Exchangers
Fig. 22 Cross Section of Wraparound Shell Heat Exchangers
Fig. 23 Both
Fig. 23 Both
Fig. 23 Double-Wall Tubing
Fig. 23 Double-Wall Tubing
External Heat Exchanger
External Heat Exchanger
Fig. 24 Both
Fig. 24 Both
Fig. 24 Tube Bundle Heat Exchanger with Intermediate Loop
Fig. 24 Tube Bundle Heat Exchanger with Intermediate Loop
Fig. 25 Both
Fig. 25 Both
Fig. 25 Double-Wall Protection Using Two Heat Exchangers in Series
Fig. 25 Double-Wall Protection Using Two Heat Exchangers in Series
Heat Exchanger Performance
Heat Exchanger Performance
552 Controls
Controls
Differential Temperature Controllers
Differential Temperature Controllers
Fig. 26 Both
Fig. 26 Both
Fig. 26 Basic Nonfreezing Collector Loop for Building Service Hot Water Heating-Nonglycol Heat Transfer Fluid
Fig. 26 Basic Nonfreezing Collector Loop for Building Service Hot Water Heating-Nonglycol Heat Transfer Fluid
553 Photovoltaically Powered Pumps
Photovoltaically Powered Pumps
Overtemperature Protection
Overtemperature Protection
Fig. 27 Both
Fig. 27 Both
Fig. 27 Heat Rejection from Nonfreezing System Using Liquid-to-Air Heat Exchanger
Fig. 27 Heat Rejection from Nonfreezing System Using Liquid-to-Air Heat Exchanger
Hot-Water Dump
Hot-Water Dump
Heat Exchanger Freeze Protection
Heat Exchanger Freeze Protection
554 Fig. 28 Both
Fig. 28 Both
Fig. 28 Nonfreezing System with Heat Exchanger Bypass
Fig. 28 Nonfreezing System with Heat Exchanger Bypass
Photovoltaic Systems
Photovoltaic Systems
Fundamentals of Photovoltaics
Fundamentals of Photovoltaics
Fig. 29 Both
Fig. 29 Both
Fig. 29 Representative Current-Voltage and Power-Voltage Curves for Photovoltaic Device
Fig. 29 Representative Current-Voltage and Power-Voltage Curves for Photovoltaic Device
555 Photovoltaic Cells and Modules
Photovoltaic Cells and Modules
Related Equipment
Related Equipment
556 References
References
Bibliography
Bibliography
557 I-P_S08_Ch37
I-P_S08_Ch37
Fig. 1 Comparison of Single-Stage Centrifugal, Reciprocating, and Screw Compressor Performance
Fig. 1 Comparison of Single-Stage Centrifugal, Reciprocating, and Screw Compressor Performance
Fig. 1 Comparison of Single-Stage Centrifugal, Reciprocating, and Screw Compressor Performance
Fig. 1 Comparison of Single-Stage Centrifugal, Reciprocating, and Screw Compressor Performance
Positive-Displacement Compressors
Positive-Displacement Compressors
558 Fig. 2 Types of Positive-Displacement Compressors
Fig. 2 Types of Positive-Displacement Compressors
Fig. 2 Types of Positive-Displacement Compressors (Classified by Compression Mechanism Design)
Fig. 2 Types of Positive-Displacement Compressors (Classified by Compression Mechanism Design)
Performance
Performance
Fig. 3 Ideal Compressor Cycle
Fig. 3 Ideal Compressor Cycle
Fig. 3 Ideal Compressor Cycle
Fig. 3 Ideal Compressor Cycle
Ideal Compressor
Ideal Compressor
559 Fig. 4 Pressure-Enthalpy Diagram for Ideal Refrigeration Cycle
Fig. 4 Pressure-Enthalpy Diagram for Ideal Refrigeration Cycle
Fig. 4 Pressure-Enthalpy Diagram for Ideal Refrigeration Cycle
Fig. 4 Pressure-Enthalpy Diagram for Ideal Refrigeration Cycle
Actual Compressor
Actual Compressor
Compressor Efficiency, Subcooling, and Superheating
Compressor Efficiency, Subcooling, and Superheating
560 Abnormal Operating Conditions, Hazards, and Protective Devices
Abnormal Operating Conditions, Hazards, and Protective Devices
Liquid Hazard
Liquid Hazard
Suction and Discharge Pulsations
Suction and Discharge Pulsations
561 Noise
Noise
Vibration
Vibration
Shock
Shock
Testing and Operating Requirements
Testing and Operating Requirements
562 Fig. 5 Example of Compressor Operating Envelope
Fig. 5 Example of Compressor Operating Envelope
Fig. 5 Example of Compressor Operating Envelope
Fig. 5 Example of Compressor Operating Envelope
Motors
Motors
563 Reciprocating Compressors
Reciprocating Compressors
Fig. 6 Basic Reciprocating Piston with Reed with Valves
Fig. 6 Basic Reciprocating Piston with Reed with Valves
Fig. 6 Basic Reciprocating Piston with Reed Valves
Fig. 6 Basic Reciprocating Piston with Reed Valves
Fig. 7 Pumping Cycle of Reciprocating Compressor
Fig. 7 Pumping Cycle of Reciprocating Compressor
Fig. 7 Pumping Cycle of Reciprocating Compressor
Fig. 7 Pumping Cycle of Reciprocating Compressor
564 Table 1 Typical Design Features of Reciprocating Compressors
Table 1 Typical Design Features of Reciprocating Compressors
Performance Data
Performance Data
Motor Performance
Motor Performance
565 Fig. 8 Capacity and Power-Input Curves for Typical Hermetic Reciprocating Compressor
Fig. 8 Capacity and Power-Input Curves for Typical Hermetic Reciprocating Compressor
Fig. 8 Capacity and Power-Input Curves for Typical Semihermetic Reciprocating Compressor
Fig. 8 Capacity and Power-Input Curves for Typical Semihermetic Reciprocating Compressor
Table 2 Motor-Starting Torques
Table 2 Motor-Starting Torques
Features
Features
567 Special Devices
Special Devices
Application
Application
Fig. 9 Modified Oil-Equalizing System
Fig. 9 Modified Oil-Equalizing System
Fig. 9 Modified Oil-Equalizing System
Fig. 9 Modified Oil-Equalizing System
Rotary Compressors
Rotary Compressors
Rolling-Piston Compressors
Rolling-Piston Compressors
568 Fig. 10 Fixed Vane, Rolling Piston Rotary Compressor
Fig. 10 Fixed Vane, Rolling Piston Rotary Compressor
Fig. 10 Fixed-Vane, Rolling-Piston Rotary Compressor
Fig. 10 Fixed-Vane, Rolling-Piston Rotary Compressor
Fig. 11 Performance Curves for Typical Rolling Piston Compressor
Fig. 11 Performance Curves for Typical Rolling Piston Compressor
Fig. 11 Performance Curves for Typical Rolling-Piston Compressor
Fig. 11 Performance Curves for Typical Rolling-Piston Compressor
Table 3 Typical Rolling-Piston Compressor Performance
Table 3 Typical Rolling-Piston Compressor Performance
Performance
Performance
569 Fig. 12 Sound Level of Combination Refrigerator-Freezer with Typical Rotary Compressor
Fig. 12 Sound Level of Combination Refrigerator-Freezer with Typical Rotary Compressor
Fig. 12 Sound Level of Combination Refrigerator-Freezer with Typical Rotary Compressor
Fig. 12 Sound Level of Combination Refrigerator-Freezer with Typical Rotary Compressor
Features
Features
Rotary-Vane Compressors
Rotary-Vane Compressors
Fig. 13 Rotary Vane Compressor
Fig. 13 Rotary Vane Compressor
Fig. 13 Rotary-Vane Compressor
Fig. 13 Rotary-Vane Compressor
570 Single-Screw Compressors
Single-Screw Compressors
Description
Description
Fig. 14 Section of Single-Screw Refrigeration Compressor
Fig. 14 Section of Single-Screw Refrigeration Compressor
Fig. 14 Section of Single-Screw Refrigeration Compressor
Fig. 14 Section of Single-Screw Refrigeration Compressor
Fig. 15 Sequence of Compression Process in Single-Screw Compressor
Fig. 15 Sequence of Compression Process in Single-Screw Compressor
Fig. 15 Sequence of Compression Process in Single-Screw Compressor
Fig. 15 Sequence of Compression Process in Single-Screw Compressor
Compression Process
Compression Process
Mechanical Features
Mechanical Features
571 Fig. 16 Radial and Axially Balanced Main Rotor
Fig. 16 Radial and Axially Balanced Main Rotor
Fig. 16 Radial and Axially Balanced Main Rotor
Fig. 16 Radial and Axially Balanced Main Rotor
Fig. 17 Oil and Refrigerant Schematic of Oil Injection System
Fig. 17 Oil and Refrigerant Schematic of Oil Injection System
Fig. 17 Oil and Refrigerant Schematic of Oil Injection System
Fig. 17 Oil and Refrigerant Schematic of Oil Injection System
572 Fig. 18 Schematic of Oil-Injection-Free Circuit
Fig. 18 Schematic of Oil-Injection-Free Circuit
Fig. 18 Schematic of Oil-Injection-Free Circuit
Fig. 18 Schematic of Oil-Injection-Free Circuit
Fig. 19 Theoretical Economizer Cycle
Fig. 19 Theoretical Economizer Cycle
Fig. 19 Theoretical Economizer Cycle
Fig. 19 Theoretical Economizer Cycle
573 Fig. 20 Capacity Control Slide Valve Operation
Fig. 20 Capacity Control Slide Valve Operation
Fig. 20 Capacity-Control Slide Valve Operation
Fig. 20 Capacity-Control Slide Valve Operation
Fig. 21 Refrigeration Compressor Equipped with Variable Capacity Slide Valve and Variable Volume Ratio Slide Valve
Fig. 21 Refrigeration Compressor Equipped with Variable Capacity Slide Valve and Variable Volume Ratio Slide Valve
Fig. 21 Refrigeration Compressor Equipped with Variable- Capacity Slide Valve and Variable-Volume-Ratio Slide Valve
Fig. 21 Refrigeration Compressor Equipped with Variable- Capacity Slide Valve and Variable-Volume-Ratio Slide Valve
Fig. 22 Capacity Slide in Full-Load Position and Volume Ratio Slide in Intermediate Position
Fig. 22 Capacity Slide in Full-Load Position and Volume Ratio Slide in Intermediate Position
Fig. 22 Capacity Slide in Full-Load Position and Volume Ratio Slide in Intermediate Position
Fig. 22 Capacity Slide in Full-Load Position and Volume Ratio Slide in Intermediate Position
Fig. 23 Capacity Slide in Part-Load Position and Volume Ratio Slide Positioned to Maintain System Volume Ratio
Fig. 23 Capacity Slide in Part-Load Position and Volume Ratio Slide Positioned to Maintain System Volume Ratio
Fig. 23 Capacity Slide in Part-Load Position and Volume Ratio Slide Positioned to Maintain System Volume Ratio
Fig. 23 Capacity Slide in Part-Load Position and Volume Ratio Slide Positioned to Maintain System Volume Ratio
574 Fig. 24 Part-Load Effect of Symmetrical and Asymmetrical Capacity Control
Fig. 24 Part-Load Effect of Symmetrical and Asymmetrical Capacity Control
Fig. 24 Part-Load Effect of Symmetrical and Asymmetrical Capacity Control
Fig. 24 Part-Load Effect of Symmetrical and Asymmetrical Capacity Control
Noise and Vibration
Noise and Vibration
Fig. 25 Typical Compressor Performance on R-22
Fig. 25 Typical Compressor Performance on R-22
Fig. 25 Typical Open-Compressor Performance on R-22
Fig. 25 Typical Open-Compressor Performance on R-22
Fig. 26 Typical Compressor Performance on R-717 (Ammonia)
Fig. 26 Typical Compressor Performance on R-717 (Ammonia)
Fig. 26 Typical Compressor Performance on R-717 (Ammonia)
Fig. 26 Typical Compressor Performance on R-717 (Ammonia)
Twin-Screw Compressors
Twin-Screw Compressors
575 Fig. 27 Typical Semihermetic Single-Screw Compressor
Fig. 27 Typical Semihermetic Single-Screw Compressor
Fig. 27 Typical Semihermetic Single-Screw Compressor
Fig. 27 Typical Semihermetic Single-Screw Compressor
Compression Process
Compression Process
Fig. 28 Single Gate Rotor Semihermetic Single-Screw Compressor
Fig. 28 Single Gate Rotor Semihermetic Single-Screw Compressor
Fig. 28 Single-Gate-Rotor Semihermetic Single-Screw Compressor
Fig. 28 Single-Gate-Rotor Semihermetic Single-Screw Compressor
Fig. 29 Twin-Screw Compressor
Fig. 29 Twin-Screw Compressor
Fig. 29 Twin-Screw Compressor
Fig. 29 Twin-Screw Compressor
Fig. 30 Compression Process
Fig. 30 Compression Process
Fig. 30 Twin-Screw Compression Process
Fig. 30 Twin-Screw Compression Process
Mechanical Features
Mechanical Features
576 Capacity Control
Capacity Control
Fig. 31 Slide Valve Unloading Mechanism
Fig. 31 Slide Valve Unloading Mechanism
Fig. 31 Slide Valve Unloading Mechanism
Fig. 31 Slide Valve Unloading Mechanism
577 Fig. 32 Lift Valve Unloading Mechanism
Fig. 32 Lift Valve Unloading Mechanism
Fig. 32 Lift Valve Unloading Mechanism
Fig. 32 Lift Valve Unloading Mechanism
Volume (Compression) Ratio
Volume (Compression) Ratio
Fig. 33 View of Fixed and Variable Volume Ratio (Vi ) Slide Valves from Above
Fig. 33 View of Fixed and Variable Volume Ratio (Vi ) Slide Valves from Above
Fig. 33 View of Fixed- and Variable-Volume-Ratio (Vi ) Slide Valves from Above
Fig. 33 View of Fixed- and Variable-Volume-Ratio (Vi ) Slide Valves from Above
578 Fig. 34 Twin-Screw Compressor Efficiency Curves
Fig. 34 Twin-Screw Compressor Efficiency Curves
Fig. 34 Twin-Screw Compressor Efficiency Curves
Fig. 34 Twin-Screw Compressor Efficiency Curves
Oil Injection
Oil Injection
579 Economizers
Economizers
Fig. 35 Semihermetic Twin-Screw Compressor with Suction Gas-Cooled Motor
Fig. 35 Semihermetic Twin-Screw Compressor with Suction Gas-Cooled Motor
Fig. 35 Semihermetic Twin-Screw Compressor with Suction-Gas-Cooled Motor
Fig. 35 Semihermetic Twin-Screw Compressor with Suction-Gas-Cooled Motor
Fig. 36 Semihermetic Twin-Screw Compressor with Motor Housing Used as Economizer; Built-In Oil Separator
Fig. 36 Semihermetic Twin-Screw Compressor with Motor Housing Used as Economizer; Built-In Oil Separator
Fig. 36 Semihermetic Twin-Screw Compressor with Motor Housing Used as Economizer; Built-In Oil Separator
Fig. 36 Semihermetic Twin-Screw Compressor with Motor Housing Used as Economizer; Built-In Oil Separator
Hermetic and Semihermetic Compressors
Hermetic and Semihermetic Compressors
Performance Characteristics
Performance Characteristics
Noise
Noise
Orbital Compressors
Orbital Compressors
Scroll Compressors
Scroll Compressors
Description
Description
580 Fig. 37 Vertical, Discharge-Cooled, Semihermetic Twin-Screw Compressor
Fig. 37 Vertical, Discharge-Cooled, Semihermetic Twin-Screw Compressor
Fig. 37 Vertical, Discharge-Cooled, Hermetic Twin-Screw Compressor
Fig. 37 Vertical, Discharge-Cooled, Hermetic Twin-Screw Compressor
Fig. 38 Interfitted Scroll Members
Fig. 38 Interfitted Scroll Members
Fig. 38 Interfitted Scroll Members
Fig. 38 Interfitted Scroll Members
Fig. 39 Scroll Compression Process
Fig. 39 Scroll Compression Process
Fig. 39 Scroll Compression Process
Fig. 39 Scroll Compression Process
581 Mechanical Features
Mechanical Features
Fig. 40 Bearings and Other Components of Scroll Compressor
Fig. 40 Bearings and Other Components of Scroll Compressor
Fig. 40 Bearings and Other Components of Scroll Compressor
Fig. 40 Bearings and Other Components of Scroll Compressor
Capacity Control
Capacity Control
582 Fig. 41 Volumetric and Isentropic Efficiency Versus Pressure Ratio for Scroll Compressors
Fig. 41 Volumetric and Isentropic Efficiency Versus Pressure Ratio for Scroll Compressors
Fig. 41 Volumetric and Isentropic Efficiency Versus Pressure Ratio for Scroll Compressors
Fig. 41 Volumetric and Isentropic Efficiency Versus Pressure Ratio for Scroll Compressors
Performance
Performance
Fig. 42 Scroll Capacity Versus Residence Demand
Fig. 42 Scroll Capacity Versus Residence Demand
Fig. 42 Scroll Capacity Versus Residence Demand
Fig. 42 Scroll Capacity Versus Residence Demand
Fig. 43 Typical Scroll Sound Spectrum
Fig. 43 Typical Scroll Sound Spectrum
Fig. 43 Typical Scroll Sound Spectrum
Fig. 43 Typical Scroll Sound Spectrum
Noise and Vibration
Noise and Vibration
Operation and Maintenance
Operation and Maintenance
Trochoidal Compressors
Trochoidal Compressors
583 Fig. 44 Possible Versions of Epitrochoidal and Hypotrochoidal Machines
Fig. 44 Possible Versions of Epitrochoidal and Hypotrochoidal Machines
Fig. 44 Possible Versions of Epitrochoidal and Hypotrochoidal Machines
Fig. 44 Possible Versions of Epitrochoidal and Hypotrochoidal Machines
Fig. 45 Wankel Sealing System for Trochoidal Compressors
Fig. 45 Wankel Sealing System for Trochoidal Compressors
Fig. 45 Wankel Sealing System for Trochoidal Compressors
Fig. 45 Wankel Sealing System for Trochoidal Compressors
Fig. 46 Sequence of Operation of Wankel Rotary Compressor
Fig. 46 Sequence of Operation of Wankel Rotary Compressor
Fig. 46 Sequence of Operation of Wankel Rotary Compressor
Fig. 46 Sequence of Operation of Wankel Rotary Compressor
Description and Performance
Description and Performance
584 Centrifugal Compressors
Centrifugal Compressors
Fig. 47 Centrifugal Refrigeration Unit Cross Section
Fig. 47 Centrifugal Refrigeration Unit Cross Section
Fig. 47 Centrifugal Refrigeration Unit Cross Section
Fig. 47 Centrifugal Refrigeration Unit Cross Section
Refrigeration Cycle
Refrigeration Cycle
585 Fig. 48 Simple Vapor Compression Cycle
Fig. 48 Simple Vapor Compression Cycle
Fig. 48 Simple Vapor Compression Cycle
Fig. 48 Simple Vapor Compression Cycle
Fig. 49 Compression Cycle with Flash Cooling
Fig. 49 Compression Cycle with Flash Cooling
Fig. 49 Compression Cycle with Flash Cooling
Fig. 49 Compression Cycle with Flash Cooling
Fig. 50 Compression Cycle with Power Recovery Expander
Fig. 50 Compression Cycle with Power Recovery Expander
Fig. 50 Compression Cycle with Power Recovery Expander
Fig. 50 Compression Cycle with Power Recovery Expander
Angular Momentum
Angular Momentum
Fig. 51 Impeller Exit Velocity Diagram
Fig. 51 Impeller Exit Velocity Diagram
Fig. 51 Impeller Exit Velocity Diagram
Fig. 51 Impeller Exit Velocity Diagram
586 Isentropic Analysis
Isentropic Analysis
Polytropic Analysis
Polytropic Analysis
587 Fig. 52 Ratio of Polytropic to Adiabatic Work
Fig. 52 Ratio of Polytropic to Adiabatic Work
Fig. 52 Ratio of Polytropic to Adiabatic Work
Fig. 52 Ratio of Polytropic to Adiabatic Work
Nondimensional Coefficients
Nondimensional Coefficients
588 Table 4 Acoustic Velocity of Saturated Vapor, fps
Table 4 Acoustic Velocity of Saturated Vapor, fps
Mach Number
Mach Number
Performance
Performance
Fig. 53 Typical Compressor Performance Curves
Fig. 53 Typical Compressor Performance Curves
Fig. 53 Typical Compressor Performance Curves
Fig. 53 Typical Compressor Performance Curves
Testing
Testing
589 Surging
Surging
System Balance and Capacity Control
System Balance and Capacity Control
Fig. 54 Typical Compressor Performance with Various Prerotation Vane Settings
Fig. 54 Typical Compressor Performance with Various Prerotation Vane Settings
Fig. 54 Typical Compressor Performance with Various Prerotation Vane Settings
Fig. 54 Typical Compressor Performance with Various Prerotation Vane Settings
590 Fig. 55 Typical Part-Load Gas Compression Power Input for Speed and Vane Capacity Controls
Fig. 55 Typical Part-Load Gas Compression Power Input for Speed and Vane Capacity Controls
Fig. 55 Typical Part-Load Gas Compression Power Input for Speed and Vane Capacity Controls
Fig. 55 Typical Part-Load Gas Compression Power Input for Speed and Vane Capacity Controls
Application
Application
Critical Speed
Critical Speed
Vibration
Vibration
Noise
Noise
591 Drivers
Drivers
Paralleling
Paralleling
Other Specialized Applications
Other Specialized Applications
Mechanical Design
Mechanical Design
Impellers
Impellers
592 Casings
Casings
Lubrication
Lubrication
Bearings
Bearings
Accessories
Accessories
Operation and Maintenance
Operation and Maintenance
593 Symbols
Symbols
References
References
595 I-P_S08_Ch38
I-P_S08_Ch38
Water-Cooled Condensers
Water-Cooled Condensers
Heat Removal
Heat Removal
Fig. 1 Heat Removed in Condenser
Fig. 1 Heat Removed in Condenser
596 Heat Transfer
Heat Transfer
Overall Heat Transfer Coefficient
Overall Heat Transfer Coefficient
Water-Side Film Coefficient
Water-Side Film Coefficient
597 Refrigerant-Side Film Coefficient
Refrigerant-Side Film Coefficient
Tube-Wall Resistance
Tube-Wall Resistance
598 Surface Efficiency
Surface Efficiency
Fouling Factor
Fouling Factor
Fig. 2 Effect of Fouling on Condenser
Fig. 2 Effect of Fouling on Condenser
Fig. 2 Effect of Fouling on Condenser
Fig. 2 Effect of Fouling on Condenser
Water Pressure Drop
Water Pressure Drop
599 Liquid Subcooling
Liquid Subcooling
Circuiting
Circuiting
Fig. 3 Effect of Condenser Circuiting
Fig. 3 Effect of Condenser Circuiting
Fig. 3 Effect of Condenser Circuiting
Fig. 3 Effect of Condenser Circuiting
Condenser Types
Condenser Types
Shell-and-Tube Condensers
Shell-and-Tube Condensers
600 Shell-and-Coil Condensers
Shell-and-Coil Condensers
Tube-in-Tube Condensers
Tube-in-Tube Condensers
Brazed-Plate and Plate-and-Frame Condensers
Brazed-Plate and Plate-and-Frame Condensers
Noncondensable Gases
Noncondensable Gases
601 Fig. 4 Loss of Refrigerant During Purging at Various Gas Temperatures and Pressures
Fig. 4 Loss of Refrigerant During Purging at Various Gas Temperatures and Pressures
Fig. 4 Loss of Refrigerant During Purging at Various Gas Temperatures and Pressures
Fig. 4 Loss of Refrigerant During Purging at Various Gas Temperatures and Pressures
Codes and Standards
Codes and Standards
Design Pressure
Design Pressure
Operation and Maintenance
Operation and Maintenance
602 Fig. 5 Effect of Fouling on Chiller Performance
Fig. 5 Effect of Fouling on Chiller Performance
Fig. 5 Effect of Fouling on Chiller Performance
Fig. 5 Effect of Fouling on Chiller Performance
Air-Cooled Condensers
Air-Cooled Condensers
Types
Types
Plate-and-Fin
Plate-and-Fin
603 Integral-Fin
Integral-Fin
Microchannel
Microchannel
Fans and Air Requirements
Fans and Air Requirements
Heat Transfer and Pressure Drop
Heat Transfer and Pressure Drop
604 Fig. 6 Temperature and Enthalpy Changes in Air-Cooled Condenser with R-134a
Fig. 6 Temperature and Enthalpy Changes in Air-Cooled Condenser with R-134a
Fig. 6 Temperature and Enthalpy Changes in Air-Cooled Condenser with R-134a
Fig. 6 Temperature and Enthalpy Changes in Air-Cooled Condenser with R-134a
Condensers Remote from Compressor
Condensers Remote from Compressor
Condensers as Part of Condensing Unit
Condensers as Part of Condensing Unit
Water-cooled versus Air-Cooled Condensing
Water-cooled versus Air-Cooled Condensing
605 Testing and Rating
Testing and Rating
Control of Air-Cooled Condensers
Control of Air-Cooled Condensers
Table 1 Net Refrigeration Effect Factors for Reciprocating Compressors Used with Air-Cooled and Evaporative Condensers
Table 1 Net Refrigeration Effect Factors for Reciprocating Compressors Used with Air-Cooled and Evaporative Condensers
606 Fig. 7 Equal-Sized Condenser Sections Connected in Parallel and for Half-Condenser Operation During Winter
Fig. 7 Equal-Sized Condenser Sections Connected in Parallel and for Half-Condenser Operation During Winter
Fig. 7 Equal-Sized Condenser Sections Connected in Parallel and for Half-Condenser Operation During Winter
Fig. 7 Equal-Sized Condenser Sections Connected in Parallel and for Half-Condenser Operation During Winter
Fig. 8 Unit Condensers Installed in Parallel with Combined Fan Cycling and Damper Control
Fig. 8 Unit Condensers Installed in Parallel with Combined Fan Cycling and Damper Control
Fig. 8 Unit Condensers Installed in Parallel with Combined Fan Cycling and Damper Control
Fig. 8 Unit Condensers Installed in Parallel with Combined Fan Cycling and Damper Control
607 Installation and Maintenance
Installation and Maintenance
Fig. 9 Air-Cooled Unit Condenser for Winter Heating and Summer Ventilation
Fig. 9 Air-Cooled Unit Condenser for Winter Heating and Summer Ventilation
Fig. 9 Air-Cooled Unit Condenser for Winter Heating and Summer Ventilation
Fig. 9 Air-Cooled Unit Condenser for Winter Heating and Summer Ventilation
608 Fig. 10 Functional View of Evaporative Condenser
Fig. 10 Functional View of Evaporative Condenser
Fig. 10 Functional Views of Evaporative Condenser
Fig. 10 Functional Views of Evaporative Condenser
Evaporative Condensers
Evaporative Condensers
Heat Transfer
Heat Transfer
609 Fig. 11 Heat Transfer Diagram for Evaporative Condenser
Fig. 11 Heat Transfer Diagram for Evaporative Condenser
Fig. 11 Heat Transfer Diagram for Evaporative Condenser
Fig. 11 Heat Transfer Diagram for Evaporative Condenser
Condenser Configuration
Condenser Configuration
Coils
Coils
Method of Coil Wetting
Method of Coil Wetting
Fig. 12 Combined Coil/Fill Evaporative Condenser
Fig. 12 Combined Coil/Fill Evaporative Condenser
Airflow
Airflow
610 Condenser Location
Condenser Location
Fig. 13 Evaporative Condenser Arranged for Year-Round Operation
Fig. 13 Evaporative Condenser Arranged for Year-Round Operation
Fig. 13 Evaporative Condenser Arranged for Year-Round Operation
Fig. 13 Evaporative Condenser Arranged for Year-Round Operation
Multiple-Condenser Installations
Multiple-Condenser Installations
Fig. 14 Parallel Operation of Evaporative and Shell-and-Tube Condenser
Fig. 14 Parallel Operation of Evaporative and Shell-and-Tube Condenser
Fig. 14 Parallel Operation of Evaporative and Shell-and-Tube Condenser
Fig. 14 Parallel Operation of Evaporative and Shell-and-Tube Condenser
Ratings
Ratings
611 Fig. 15 Parallel Operation of Two Evaporative Condensers
Fig. 15 Parallel Operation of Two Evaporative Condensers
Fig. 15 Parallel Operation of Two Evaporative Condensers
Fig. 15 Parallel Operation of Two Evaporative Condensers
Fig. 16 Evaporative Condenser with Desuperheater Coil
Fig. 16 Evaporative Condenser with Desuperheater Coil
Fig. 16 Evaporative Condenser with Desuperheater Coil
Fig. 16 Evaporative Condenser with Desuperheater Coil
Desuperheating Coils
Desuperheating Coils
Refrigerant Liquid Subcoolers
Refrigerant Liquid Subcoolers
Fig. 17 Evaporative Condenser with Liquid Subcooling Coil
Fig. 17 Evaporative Condenser with Liquid Subcooling Coil
Fig. 17 Evaporative Condenser with Liquid Subcooling Coil
Fig. 17 Evaporative Condenser with Liquid Subcooling Coil
Multicircuit Condensers and Coolers
Multicircuit Condensers and Coolers
612 Water Treatment
Water Treatment
Water Consumption
Water Consumption
Capacity Modulation
Capacity Modulation
Purging
Purging
Maintenance
Maintenance
Codes and Standards
Codes and Standards
613 Table 2 Typical Maintenance Checklist
Table 2 Typical Maintenance Checklist
References
References
614 Bibliography
Bibliography
615 I-P_S08_Ch39
I-P_S08_Ch39
Principle of Operation
Principle of Operation
Fig. 1 Temperature Relationship Between Water and Air in Counterflow Cooling Tower
Fig. 1 Temperature Relationship Between Water and Air in Counterflow Cooling Tower
616 Fig. 2 Psychrometric Analysis of Air Passing Through Cooling Tower
Fig. 2 Psychrometric Analysis of Air Passing Through Cooling Tower
Fig. 2 Psychrometric Analysis of Air Passing Through Cooling Tower
Fig. 2 Psychrometric Analysis of Air Passing Through Cooling Tower
Design Conditions
Design Conditions
Types of Cooling Towers
Types of Cooling Towers
Fig. 3 Direct-Contact or Open Evaporative Cooling Tower
Fig. 3 Direct-Contact or Open Evaporative Cooling Tower
Fig. 3 Direct-Contact or Open Evaporative Cooling Tower
Fig. 3 Direct-Contact or Open Evaporative Cooling Tower
617 Fig. 4 Indirect-Contact or Closed-Circuit Evaporative Cooling Tower
Fig. 4 Indirect-Contact or Closed-Circuit Evaporative Cooling Tower
Fig. 4 Indirect-Contact or Closed-Circuit Evaporative Cooling Tower
Fig. 4 Indirect-Contact or Closed-Circuit Evaporative Cooling Tower
Fig. 5 Types of Fill
Fig. 5 Types of Fill
Fig. 5 Types of Fill
Fig. 5 Types of Fill
Fig. 6 Combined Flow Coil/Fill Evaporative Cooling Tower
Fig. 6 Combined Flow Coil/Fill Evaporative Cooling Tower
Fig. 6 Combined Flow Coil/Fill Evaporative Cooling Tower
Fig. 6 Combined Flow Coil/Fill Evaporative Cooling Tower
Types of Direct-Contact Cooling Towers
Types of Direct-Contact Cooling Towers
618 Fig. 7 Vertical Spray Tower
Fig. 7 Vertical Spray Tower
Fig. 7 Vertical Spray Tower
Fig. 7 Vertical Spray Tower
Fig. 8 Horizontal Spray Tower
Fig. 8 Horizontal Spray Tower
Fig. 8 Horizontal Spray Tower
Fig. 8 Horizontal Spray Tower
Fig. 9 Hyperbolic Tower
Fig. 9 Hyperbolic Tower
Fig. 9 Hyperbolic Tower
Fig. 9 Hyperbolic Tower
Fig. 10 Conventional Mechanical-Draft Cooling Towers
Fig. 10 Conventional Mechanical-Draft Cooling Towers
Fig. 10 Conventional Mechanical-Draft Cooling Towers
Fig. 10 Conventional Mechanical-Draft Cooling Towers
Fig. 11 Factory-Assembled Counterflow Forced-Draft Tower
Fig. 11 Factory-Assembled Counterflow Forced-Draft Tower
Fig. 11 Factory-Assembled Counterflow Forced-Draft Tower
Fig. 11 Factory-Assembled Counterflow Forced-Draft Tower
619 Fig. 12 Field-Erected Cross-Flow Mechanical-Draft Tower
Fig. 12 Field-Erected Cross-Flow Mechanical-Draft Tower
Fig. 12 Field-Erected Cross-Flow Mechanical-Draft Tower
Fig. 12 Field-Erected Cross-Flow Mechanical-Draft Tower
Other Methods of Direct Heat Rejection
Other Methods of Direct Heat Rejection
620 Fig. 13 Combination Wet-Dry Tower
Fig. 13 Combination Wet-Dry Tower
Fig. 13 Combination Wet-Dry Tower
Fig. 13 Combination Wet-Dry Tower
Fig. 14 Adiabatically Saturated Air-Cooled Heat Exchanger
Fig. 14 Adiabatically Saturated Air-Cooled Heat Exchanger
Fig. 14 Adiabatically Saturated Air-Cooled Heat Exchanger
Fig. 14 Adiabatically Saturated Air-Cooled Heat Exchanger
Types of Indirect-Contact Towers
Types of Indirect-Contact Towers
621 Fig. 15 Coil Shed Cooling Tower
Fig. 15 Coil Shed Cooling Tower
Fig. 15 Coil Shed Cooling Tower
Fig. 15 Coil Shed Cooling Tower
Materials of Construction
Materials of Construction
Selection Considerations
Selection Considerations
Application
Application
Siting
Siting
622 Fig. 16 Discharge Air Reentering Tower
Fig. 16 Discharge Air Reentering Tower
Fig. 16 Discharge Air Reentering Tower
Fig. 16 Discharge Air Reentering Tower
Piping
Piping
Capacity Control
Capacity Control
Fig. 17 Cooling Tower Fan Power Versus Speed
Fig. 17 Cooling Tower Fan Power Versus Speed
Fig. 17 Cooling Tower Fan Power Versus Speed
Fig. 17 Cooling Tower Fan Power Versus Speed
623 Fig. 18 Free Cooling by Use of Auxiliary Heat Exchanger
Fig. 18 Free Cooling by Use of Auxiliary Heat Exchanger
Fig. 18 Free Cooling by Use of Auxiliary Heat Exchanger
Fig. 18 Free Cooling by Use of Auxiliary Heat Exchanger
Fig. 19 Free Cooling by Use of Refrigerant Vapor Migration
Fig. 19 Free Cooling by Use of Refrigerant Vapor Migration
Fig. 19 Free Cooling by Use of Refrigerant Vapor Migration
Fig. 19 Free Cooling by Use of Refrigerant Vapor Migration
Water-Side Economizer (Free Cooling)
Water-Side Economizer (Free Cooling)
624 Fig. 20 Free Cooling by Interconnection of Water Circuits
Fig. 20 Free Cooling by Interconnection of Water Circuits
Fig. 20 Free Cooling by Interconnection of Water Circuits
Fig. 20 Free Cooling by Interconnection of Water Circuits
Winter Operation
Winter Operation
Sound
Sound
625 Drift
Drift
Fig. 21 Fog Prediction Using Psychrometric Chart
Fig. 21 Fog Prediction Using Psychrometric Chart
Fig. 21 Fog Prediction Using Psychrometric Chart
Fig. 21 Fog Prediction Using Psychrometric Chart
Fogging (Cooling Tower Plume)
Fogging (Cooling Tower Plume)
Maintenance
Maintenance
Inspections
Inspections
626 Table 1 Typical Inspection and Maintenance Schedule *
Table 1 Typical Inspection and Maintenance Schedule *
627 Water Treatment
Water Treatment
Performance Curves
Performance Curves
628 Fig. 22 Cooling Tower Performance-100% Design Flow
Fig. 22 Cooling Tower Performance-100% Design Flow
Fig. 23
Fig. 23
Fig. 24
Fig. 24
Fig. 22 Cooling Tower Performance-100% Design Flow
Fig. 22 Cooling Tower Performance-100% Design Flow
Fig. 25 Cooling Tower Performance-67% Design Flow
Fig. 25 Cooling Tower Performance-67% Design Flow
Fig. 23 Cooling Tower Performance-67% Design Flow
Fig. 23 Cooling Tower Performance-67% Design Flow
Fig. 26 Cooling Tower Performance-133% Design Flow
Fig. 26 Cooling Tower Performance-133% Design Flow
Fig. 24 Cooling Tower Performance-133% Design Flow
Fig. 24 Cooling Tower Performance-133% Design Flow
Fig. 27 Cooling Tower Performance-167% Design Flow
Fig. 27 Cooling Tower Performance-167% Design Flow
Fig. 25 Cooling Tower Performance-167% Design Flow
Fig. 25 Cooling Tower Performance-167% Design Flow
629 Cooling Tower Thermal Performance
Cooling Tower Thermal Performance
Cooling Tower Theory
Cooling Tower Theory
Fig. 28 Heat and Mass Transfer Relationships Between Water, Interfacial Film, and Air
Fig. 28 Heat and Mass Transfer Relationships Between Water, Interfacial Film, and Air
Fig. 26 Heat and Mass Transfer Relationships Between Water, Interfacial Film, and Air
Fig. 26 Heat and Mass Transfer Relationships Between Water, Interfacial Film, and Air
630 Table 2 Counterflow Integration Calculations for Example 1
Table 2 Counterflow Integration Calculations for Example 1
Counterflow Integration
Counterflow Integration
631 Fig. 29 Counterflow Cooling Diagram
Fig. 29 Counterflow Cooling Diagram
Fig. 27 Counterflow Cooling Diagram
Fig. 27 Counterflow Cooling Diagram
Fig. 30 Water Temperature and Air Enthalpy Variation Through Cross-Flow Cooling Tower
Fig. 30 Water Temperature and Air Enthalpy Variation Through Cross-Flow Cooling Tower
Fig. 28 Water Temperature and Air Enthalpy Variation Through Cross-Flow Cooling Tower
Fig. 28 Water Temperature and Air Enthalpy Variation Through Cross-Flow Cooling Tower
Cross-Flow Integration
Cross-Flow Integration
Tower Coefficients
Tower Coefficients
632 Fig. 31 Cross-Flow Calculations
Fig. 31 Cross-Flow Calculations
Fig. 29 Cross-Flow Calculations
Fig. 29 Cross-Flow Calculations
Fig. 32 Counterflow Cooling Diagram for Constant Conditions, Variable L/G Ratios
Fig. 32 Counterflow Cooling Diagram for Constant Conditions, Variable L/G Ratios
Fig. 30 Counterflow Cooling Diagram for Constant Conditions, Variable L/G Ratios
Fig. 30 Counterflow Cooling Diagram for Constant Conditions, Variable L/G Ratios
Fig. 33 Cross-Flow Cooling Diagram
Fig. 33 Cross-Flow Cooling Diagram
Fig. 31 Cross-Flow Cooling Diagram
Fig. 31 Cross-Flow Cooling Diagram
Fig. 34 Tower Characteristic, KaV/L Versus L/G
Fig. 34 Tower Characteristic, KaV/L Versus L/G
Fig. 32 Tower Characteristic, KaV/L Versus L/G
Fig. 32 Tower Characteristic, KaV/L Versus L/G
633 Available Coefficients
Available Coefficients
Fig. 35 True Versus Apparent Potential Difference
Fig. 35 True Versus Apparent Potential Difference
Fig. 33 True Versus Apparent Potential Difference
Fig. 33 True Versus Apparent Potential Difference
Establishing Tower Characteristics
Establishing Tower Characteristics
Additional Information
Additional Information
References
References
634 Bibliography
Bibliography
635 I-P_S08_Ch40
I-P_S08_Ch40
Direct Evaporative Air Coolers
Direct Evaporative Air Coolers
636 Random-Media Air Coolers
Random-Media Air Coolers
Fig. 1 Typical Random-Media Evaporative Cooler
Fig. 1 Typical Random-Media Evaporative Cooler
Rigid-Media Air Coolers
Rigid-Media Air Coolers
Fig. 2 Typical Rigid-Media Air Cooler
Fig. 2 Typical Rigid-Media Air Cooler
Fig. 2 Typical Rigid-Media Air Cooler
Fig. 2 Typical Rigid-Media Air Cooler
Remote Pad Evaporative Cooling Equipment
Remote Pad Evaporative Cooling Equipment
Indirect Evaporative Air Coolers
Indirect Evaporative Air Coolers
Packaged Indirect Evaporative Air Coolers
Packaged Indirect Evaporative Air Coolers
637 Fig. 3 Polymer Indirect Evaporative Cooling (IEC) Heat Exchanger
Fig. 3 Polymer Indirect Evaporative Cooling (IEC) Heat Exchanger
Fig. 3 Indirect Evaporative Cooling (IEC) Heat Exchanger
Fig. 3 Indirect Evaporative Cooling (IEC) Heat Exchanger
Fig. 4 Indirect Evaporative Cooler Used as Precooler
Fig. 4 Indirect Evaporative Cooler Used as Precooler
Fig. 4 Indirect Evaporative Cooler Used as Precooler
Fig. 4 Indirect Evaporative Cooler Used as Precooler
638 Fig. 5 Heat Pipe Indirect Evaporative Cooling (IEC) Heat Exchanger
Fig. 5 Heat Pipe Indirect Evaporative Cooling (IEC) Heat Exchanger
Fig. 5 Heat Pipe Indirect Evaporative Cooling (IEC) Heat Exchanger Packaged with DX System
Fig. 5 Heat Pipe Indirect Evaporative Cooling (IEC) Heat Exchanger Packaged with DX System
Heat Recovery
Heat Recovery
639 Cooling Tower/Coil Systems
Cooling Tower/Coil Systems
Other Indirect Evaporative Cooling Equipment
Other Indirect Evaporative Cooling Equipment
Indirect/Direct Combinations
Indirect/Direct Combinations
Fig. 6 Combination Indirect/Direct Evaporative Cooling Process
Fig. 6 Combination Indirect/Direct Evaporative Cooling Process
Fig. 6 Combination Indirect/Direct Evaporative Cooling Process
Fig. 6 Combination Indirect/Direct Evaporative Cooling Process
Fig. 7 Indirect/Direct Evaporative Cooler with Heat Exchanger (Rotary Heat Wheel or Heat Pipe)
Fig. 7 Indirect/Direct Evaporative Cooler with Heat Exchanger (Rotary Heat Wheel or Heat Pipe)
Fig. 7 Indirect/Direct Evaporative Cooler with Heat Exchanger (Rotary Heat Wheel or Heat Pipe)
Fig. 7 Indirect/Direct Evaporative Cooler with Heat Exchanger (Rotary Heat Wheel or Heat Pipe)
640 Fig. 8 Three-Stage Indirect/Direct Evaporative Cooler
Fig. 8 Three-Stage Indirect/Direct Evaporative Cooler
Fig. 8 Three-Stage Indirect/Direct Evaporative Cooler
Fig. 8 Three-Stage Indirect/Direct Evaporative Cooler
Precooling and Makeup Air Pretreatment
Precooling and Makeup Air Pretreatment
Air Washers
Air Washers
Spray Air Washers
Spray Air Washers
641 Fig. 9 Interaction of Air and Water in Air Washer Heat Exchanger
Fig. 9 Interaction of Air and Water in Air Washer Heat Exchanger
Fig. 9 Interaction of Air and Water in Air Washer Heat Exchanger
Fig. 9 Interaction of Air and Water in Air Washer Heat Exchanger
High-Velocity Spray-Type Air Washers
High-Velocity Spray-Type Air Washers
Humidification/Dehumidification
Humidification/Dehumidification
Humidification with Air Washers and Rigid Media
Humidification with Air Washers and Rigid Media
642 Dehumidification with Air Washers and Rigid Media
Dehumidification with Air Washers and Rigid Media
Air Cleaning
Air Cleaning
Maintenance and Water Treatment
Maintenance and Water Treatment
643 Legionnaires’ Disease
Legionnaires’ Disease
References
References
644 Bibliography
Bibliography
645 I-P_S08_Ch41
I-P_S08_Ch41
Types of Liquid Coolers
Types of Liquid Coolers
Direct-Expansion
Direct-Expansion
Fig. 1 Direct-Expansion Shell-and-Tube Cooler
Fig. 1 Direct-Expansion Shell-and-Tube Cooler
Fig. 1 Direct-Expansion Shell-and-Tube Cooler
Fig. 1 Direct-Expansion Shell-and-Tube Cooler
Table 1 Types of Coolers
Table 1 Types of Coolers
646 Flooded
Flooded
Fig. 2 Flooded Shell-and-Tube Cooler
Fig. 2 Flooded Shell-and-Tube Cooler
Fig. 2 Flooded Shell-and-Tube Cooler
Fig. 2 Flooded Shell-and-Tube Cooler
Fig. 3 Flooded Plate Cooler
Fig. 3 Flooded Plate Cooler
Fig. 3 Flooded Plate Cooler
Fig. 3 Flooded Plate Cooler
Fig. 4 Baudelot Cooler
Fig. 4 Baudelot Cooler
Fig. 4 Baudelot Cooler
Fig. 4 Baudelot Cooler
Baudelot
Baudelot
647 Fig. 5 Shell-and-Coil Cooler
Fig. 5 Shell-and-Coil Cooler
Fig. 5 Shell-and-Coil Cooler
Fig. 5 Shell-and-Coil Cooler
Shell-and-Coil
Shell-and-Coil
Heat Transfer
Heat Transfer
Heat Transfer Coefficients
Heat Transfer Coefficients
648 Fig. 6 Nucleate Boiling Contribution to Total Refrigerant Heat Transfer
Fig. 6 Nucleate Boiling Contribution to Total Refrigerant Heat Transfer
Fig. 6 Nucleate Boiling Contribution to Total Refrigerant Heat Transfer
Fig. 6 Nucleate Boiling Contribution to Total Refrigerant Heat Transfer
Fouling Factors
Fouling Factors
Wall Resistance
Wall Resistance
Pressure Drop
Pressure Drop
Fluid Side
Fluid Side
Refrigerant Side
Refrigerant Side
Vessel Design
Vessel Design
Mechanical Requirements
Mechanical Requirements
649 Chemical Requirements
Chemical Requirements
Electrical Requirements
Electrical Requirements
Application Considerations
Application Considerations
Refrigerant Flow Control
Refrigerant Flow Control
Freeze Prevention
Freeze Prevention
650 Oil Return
Oil Return
Maintenance
Maintenance
Insulation
Insulation
References
References
651 I-P_S08_Ch42
I-P_S08_Ch42
General Characteristics
General Characteristics
Principles of Operation
Principles of Operation
Common Liquid-Chilling Systems
Common Liquid-Chilling Systems
Basic System
Basic System
652 Fig. 1 Equipment Diagram for Basic Liquid Chiller
Fig. 1 Equipment Diagram for Basic Liquid Chiller
Fig. 1 Equipment Diagram for Basic Liquid Chiller
Fig. 1 Equipment Diagram for Basic Liquid Chiller
Multiple-Chiller Systems
Multiple-Chiller Systems
Fig. 2 Parallel Operation High Design Water Leaving Coolers (Approximately 45°F and Above)
Fig. 2 Parallel Operation High Design Water Leaving Coolers (Approximately 45°F and Above)
Fig. 2 Parallel-Operation High Design Water Leaving Coolers (Approximately 45°F and Above)
Fig. 2 Parallel-Operation High Design Water Leaving Coolers (Approximately 45°F and Above)
Fig. 3 Parallel Operation Low Design Water Leaving Coolers (Below Approximately 45ËšF)
Fig. 3 Parallel Operation Low Design Water Leaving Coolers (Below Approximately 45ËšF)
Fig. 3 Parallel-Operation Low Design Water Leaving Coolers (Below Approximately 45ËšF)
Fig. 3 Parallel-Operation Low Design Water Leaving Coolers (Below Approximately 45ËšF)
Fig. 4 Series Operation
Fig. 4 Series Operation
Fig. 4 Series Operation
Fig. 4 Series Operation
Heat Recovery Systems
Heat Recovery Systems
653 Selection
Selection
654 Fig. 5 Approximate Liquid Chiller Availability Range by Compressor Type
Fig. 5 Approximate Liquid Chiller Availability Range by Compressor Type
Control
Control
Liquid Chiller Controls
Liquid Chiller Controls
Controls That Influence the Liquid Chiller
Controls That Influence the Liquid Chiller
Safety Controls
Safety Controls
655 Standards and Testing
Standards and Testing
General Maintenance
General Maintenance
Continual Monitoring
Continual Monitoring
Periodic Checks
Periodic Checks
Regularly Scheduled Maintenance
Regularly Scheduled Maintenance
Extended Maintenance Checks
Extended Maintenance Checks
Reciprocating Liquid Chillers
Reciprocating Liquid Chillers
Equipment
Equipment
Components and Their Functions
Components and Their Functions
656 Capacities and Types Available
Capacities and Types Available
Selection of Refrigerant
Selection of Refrigerant
Performance Characteristics and Operating Problems
Performance Characteristics and Operating Problems
Fig. 5 Comparison of Single-Stage Centrifugal, Reciprocating, and Screw Compressor Performance
Fig. 5 Comparison of Single-Stage Centrifugal, Reciprocating, and Screw Compressor Performance
Fig. 6 Comparison of Single-Stage Centrifugal, Reciprocating, and Screw Compressor Performance
Fig. 6 Comparison of Single-Stage Centrifugal, Reciprocating, and Screw Compressor Performance
Fig. 6 Reciprocating Liquid Chiller Performance with Three Equal Steps of Unloading
Fig. 6 Reciprocating Liquid Chiller Performance with Three Equal Steps of Unloading
Fig. 7 Reciprocating Liquid Chiller Performance with Three Equal Steps of Unloading
Fig. 7 Reciprocating Liquid Chiller Performance with Three Equal Steps of Unloading
657 Method of Selection
Method of Selection
Ratings
Ratings
Power Consumption
Power Consumption
Fouling
Fouling
Control Considerations
Control Considerations
Fig. 7 Reciprocating Liquid Chiller Control System
Fig. 7 Reciprocating Liquid Chiller Control System
Fig. 8 Reciprocating Liquid Chiller Control System
Fig. 8 Reciprocating Liquid Chiller Control System
Special Applications
Special Applications
658 Centrifugal Liquid Chillers
Centrifugal Liquid Chillers
Equipment
Equipment
Components and Their Function
Components and Their Function
Capacities and Types Available
Capacities and Types Available
Selection of Refrigerant
Selection of Refrigerant
659 Performance and Operating Characteristics
Performance and Operating Characteristics
Fig. 8 Typical Centrifugal Compressor Performance at Constant Speed
Fig. 8 Typical Centrifugal Compressor Performance at Constant Speed
Fig. 9 Typical Centrifugal Compressor Performance at Constant Speed
Fig. 9 Typical Centrifugal Compressor Performance at Constant Speed
660 Fig. 9 Typical Centrifugal Compressor Performance at Various Speeds
Fig. 9 Typical Centrifugal Compressor Performance at Various Speeds
Fig. 10 Typical Variable-Speed Centrifugal Compressor Performance
Fig. 10 Typical Variable-Speed Centrifugal Compressor Performance
Fig. 10 Temperature Relations in a Typical Centrifugal Liquid Chiller
Fig. 10 Temperature Relations in a Typical Centrifugal Liquid Chiller
Fig. 11 Temperature Relations in a Typical Centrifugal Liquid Chiller
Fig. 11 Temperature Relations in a Typical Centrifugal Liquid Chiller
Selection
Selection
Ratings
Ratings
661 Fouling
Fouling
Noise and Vibration
Noise and Vibration
Control Considerations
Control Considerations
Auxiliaries
Auxiliaries
662 Special Applications
Special Applications
Free Cooling
Free Cooling
Air-Cooled System
Air-Cooled System
Other Coolants
Other Coolants
Vapor Condensing
Vapor Condensing
Operation and Maintenance
Operation and Maintenance
663 Screw Liquid Chillers
Screw Liquid Chillers
Equipment
Equipment
Components and Their Function
Components and Their Function
Fig. 11 Refrigeration System Schematic
Fig. 11 Refrigeration System Schematic
Fig. 12 Refrigeration System Schematic
Fig. 12 Refrigeration System Schematic
Capacities and Types Available
Capacities and Types Available
664 Selection of Refrigerant
Selection of Refrigerant
Performance and Operating Characteristics
Performance and Operating Characteristics
Selection
Selection
Ratings
Ratings
Fig. 12 Typical Screw Compressor Chiller Part-Load Power Consumption
Fig. 12 Typical Screw Compressor Chiller Part-Load Power Consumption
Fig. 13 Typical Screw Compressor Chiller Part-Load Power Consumption
Fig. 13 Typical Screw Compressor Chiller Part-Load Power Consumption
Power Consumption
Power Consumption
Fouling
Fouling
Control Considerations
Control Considerations
665 Fig. 13 Typical External Connections for Screw Compressor Chiller
Fig. 13 Typical External Connections for Screw Compressor Chiller
Fig. 14 Typical External Connections for Screw Compressor Chiller
Fig. 14 Typical External Connections for Screw Compressor Chiller
Auxiliaries
Auxiliaries
Special Applications
Special Applications
Maintenance
Maintenance
666 References
References
Bibliography
Bibliography
Online Resource
Online Resource
667 I-P_S08_Ch43
I-P_S08_Ch43
Construction Features
Construction Features
Fig. 1 Cross Section of Typical Overhung-Impeller End-Suction Pump
Fig. 1 Cross Section of Typical Overhung-Impeller End-Suction Pump
668 Pump Operation
Pump Operation
Fig. 2 Impeller and Volute Interaction
Fig. 2 Impeller and Volute Interaction
Fig. 2 Impeller and Volute Interaction
Fig. 2 Impeller and Volute Interaction
Pump Types
Pump Types
Circulator Pump
Circulator Pump
Fig. 3 Circulator Pump (Pipe-Mounted)
Fig. 3 Circulator Pump (Pipe-Mounted)
Fig. 3 Circulator Pump (Pipe-Mounted)
Fig. 3 Circulator Pump (Pipe-Mounted)
Close-Coupled, Single-Stage, End-Suction Pump
Close-Coupled, Single-Stage, End-Suction Pump
Fig. 4 Close-Coupled End-Suction Pump
Fig. 4 Close-Coupled End-Suction Pump
Fig. 4 Close-Coupled End-Suction Pump
Fig. 4 Close-Coupled End-Suction Pump
Fig. 5 Frame-Mounted End-Suction Pump on Base Plate
Fig. 5 Frame-Mounted End-Suction Pump on Base Plate
Fig. 5 Frame-Mounted End-Suction Pump on Base Plate
Fig. 5 Frame-Mounted End-Suction Pump on Base Plate
Frame-Mounted, End-Suction Pump on Base Plate
Frame-Mounted, End-Suction Pump on Base Plate
669 Base-Mounted, Horizontal (Axial) or Vertical, Split-Case, Single-Stage, Double-Suction Pump
Base-Mounted, Horizontal (Axial) or Vertical, Split-Case, Single-Stage, Double-Suction Pump
Fig. 6 Base-Mounted, Horizontal (Axial), Split-Case, Single-Stage, Double-Suction Pump
Fig. 6 Base-Mounted, Horizontal (Axial), Split-Case, Single-Stage, Double-Suction Pump
Fig. 6 Base-Mounted, Horizontal (Axial), Split-Case, Single- Stage, Double-Suction Pump
Fig. 6 Base-Mounted, Horizontal (Axial), Split-Case, Single- Stage, Double-Suction Pump
Base-Mounted, Horizontal, Split-Case, Multistage Pump
Base-Mounted, Horizontal, Split-Case, Multistage Pump
Vertical In-Line Pump
Vertical In-Line Pump
Fig. 7 Base-Mounted, Vertical, Split-Case, Single-Stage, Double-Suction Pump
Fig. 7 Base-Mounted, Vertical, Split-Case, Single-Stage, Double-Suction Pump
Fig. 7 Base-Mounted, Vertical, Split-Case, Single-Stage, Double-Suction Pump
Fig. 7 Base-Mounted, Vertical, Split-Case, Single-Stage, Double-Suction Pump
Fig. 8 Base-Mounted, Horizontal, Split-Case, Multistage Pump
Fig. 8 Base-Mounted, Horizontal, Split-Case, Multistage Pump
Fig. 8 Base-Mounted, Horizontal, Split-Case, Multistage Pump
Fig. 8 Base-Mounted, Horizontal, Split-Case, Multistage Pump
Vertical Turbine, Single- or Multistage, Sump-Mounted Pump
Vertical Turbine, Single- or Multistage, Sump-Mounted Pump
Fig. 9 Vertical In-Line Pump
Fig. 9 Vertical In-Line Pump
Fig. 9 Vertical In-Line Pump
Fig. 9 Vertical In-Line Pump
Fig. 10 Vertical Turbine Pumps
Fig. 10 Vertical Turbine Pumps
Fig. 10 Vertical Turbine Pumps
Fig. 10 Vertical Turbine Pumps
Pump Performance Curves
Pump Performance Curves
670 Fig. 11 Typical Pump Performance Curve
Fig. 11 Typical Pump Performance Curve
Fig. 11 Typical Pump Performance Curve
Fig. 11 Typical Pump Performance Curve
Fig. 12 Typical Pump Curve
Fig. 12 Typical Pump Curve
Fig. 12 Typical Pump Curve
Fig. 12 Typical Pump Curve
Fig. 13 Flat Versus Steep Performance Curves
Fig. 13 Flat Versus Steep Performance Curves
Fig. 13 Flat Versus Steep Performance Curves
Fig. 13 Flat Versus Steep Performance Curves
Fig. 14 Typical Pump Manufacturer’s Performance Curve Series
Fig. 14 Typical Pump Manufacturer’s Performance Curve Series
Fig. 14 Typical Pump Manufacturer’s Performance Curve Series
Fig. 14 Typical Pump Manufacturer’s Performance Curve Series
Hydronic System Curves
Hydronic System Curves
671 Fig. 15 Typical System Curve
Fig. 15 Typical System Curve
Fig. 15 Typical System Curve
Fig. 15 Typical System Curve
Fig. 16 Typical System Curve with Independent Head
Fig. 16 Typical System Curve with Independent Head
Fig. 16 Typical System Curve with Independent Head
Fig. 16 Typical System Curve with Independent Head
Pump and Hydronic System Curves
Pump and Hydronic System Curves
Fig. 17 System and Pump Curves
Fig. 17 System and Pump Curves
Fig. 17 System and Pump Curves
Fig. 17 System and Pump Curves
Fig. 18 System Curve Change due to Part-Load Flow
Fig. 18 System Curve Change due to Part-Load Flow
Fig. 18 System Curve Change due to Part-Load Flow
Fig. 18 System Curve Change due to Part-Load Flow
Fig. 19 Pump Operating Points
Fig. 19 Pump Operating Points
Fig. 19 Pump Operating Points
Fig. 19 Pump Operating Points
672 Fig. 20 System Curve with System Static Pressure
Fig. 20 System Curve with System Static Pressure
Fig. 20 System Curve, Constant and Variable Head Loss
Fig. 20 System Curve, Constant and Variable Head Loss
Pump Power
Pump Power
Fig. 21 Typical Pump Water Power Increase with Flow
Fig. 21 Typical Pump Water Power Increase with Flow
Fig. 21 Typical Pump Water Power Increase with Flow
Fig. 21 Typical Pump Water Power Increase with Flow
Pump Efficiency
Pump Efficiency
673 Fig. 22 Pump Efficiency Versus Flow
Fig. 22 Pump Efficiency Versus Flow
Fig. 22 Pump Efficiency Versus Flow
Fig. 22 Pump Efficiency Versus Flow
Fig. 23 Pump Efficiency Curves
Fig. 23 Pump Efficiency Curves
Fig. 23 Pump Efficiency Curves
Fig. 23 Pump Efficiency Curves
Affinity Laws
Affinity Laws
Table 1 Pump Affinity Laws
Table 1 Pump Affinity Laws
Fig. 24 Pump Best Efficiency Curves
Fig. 24 Pump Best Efficiency Curves
Fig. 24 Pump Best Efficiency Curves
Fig. 24 Pump Best Efficiency Curves
674 Fig. 25 Pumping Power, Head, and Flow Versus Pump Speed
Fig. 25 Pumping Power, Head, and Flow Versus Pump Speed
Fig. 25 Pumping Power, Head, and Flow Versus Pump Speed
Fig. 25 Pumping Power, Head, and Flow Versus Pump Speed
Fig. 26 Example Application of Affinity Law
Fig. 26 Example Application of Affinity Law
Fig. 26 Example Application of Affinity Law
Fig. 26 Example Application of Affinity Law
Fig. 27 Variable-Speed Pump Operating Points
Fig. 27 Variable-Speed Pump Operating Points
Fig. 27 Variable-Speed Pump Operating Points
Fig. 27 Variable-Speed Pump Operating Points
Radial Thrust
Radial Thrust
Net Positive Suction Characteristics
Net Positive Suction Characteristics
675 Fig. 28 Radial Thrust Versus Pumping Rate
Fig. 28 Radial Thrust Versus Pumping Rate
Fig. 28 Radial Thrust Versus Pumping Rate
Fig. 28 Radial Thrust Versus Pumping Rate
Fig. 29 Net Positive Suction Head Available
Fig. 29 Net Positive Suction Head Available
Fig. 29 Net Positive Suction Head Available
Fig. 29 Net Positive Suction Head Available
Fig. 30 Pump Performance and NPSHR Curves
Fig. 30 Pump Performance and NPSHR Curves
Fig. 30 Pump Performance and NPSHR Curves
Fig. 30 Pump Performance and NPSHR Curves
Selection of Pumps
Selection of Pumps
676 Fig. 31 Pump Selection Regions
Fig. 31 Pump Selection Regions
Fig. 31 Pump Selection Regions
Fig. 31 Pump Selection Regions
Arrangement of Pumps
Arrangement of Pumps
Fig. 32 Pump Curve Construction for Parallel Operation
Fig. 32 Pump Curve Construction for Parallel Operation
Fig. 32 Pump Curve Construction for Parallel Operation
Fig. 32 Pump Curve Construction for Parallel Operation
Parallel Pumping
Parallel Pumping
Fig. 33 Operating Conditions for Parallel Operation
Fig. 33 Operating Conditions for Parallel Operation
Fig. 33 Operating Conditions for Parallel Operation
Fig. 33 Operating Conditions for Parallel Operation
Fig. 34 Construction of Curve for Dissimilar Parallel Pumps
Fig. 34 Construction of Curve for Dissimilar Parallel Pumps
Fig. 34 Construction of Curve for Dissimilar Parallel Pumps
Fig. 34 Construction of Curve for Dissimilar Parallel Pumps
Series Pumping
Series Pumping
677 Fig. 35 Typical Piping for Parallel Pumps
Fig. 35 Typical Piping for Parallel Pumps
Fig. 35 Typical Piping for Parallel Pumps
Fig. 35 Typical Piping for Parallel Pumps
Standby Pump
Standby Pump
Pumps with Two-Speed Motors
Pumps with Two-Speed Motors
Fig. 36 Pump Curve Construction for Series Operation
Fig. 36 Pump Curve Construction for Series Operation
Fig. 36 Pump Curve Construction for Series Operation
Fig. 36 Pump Curve Construction for Series Operation
Fig. 37 Operating Conditions for Series Operation
Fig. 37 Operating Conditions for Series Operation
Fig. 37 Operating Conditions for Series Operation
Fig. 37 Operating Conditions for Series Operation
Fig. 38 Typical Piping for Series Pumps
Fig. 38 Typical Piping for Series Pumps
Fig. 38 Typical Piping for Series Pumps
Fig. 38 Typical Piping for Series Pumps
Primary-Secondary Pumping
Primary-Secondary Pumping
678 Fig. 39 Example of Two Parallel Pumps with Two-Speed Motors
Fig. 39 Example of Two Parallel Pumps with Two-Speed Motors
Fig. 39 Example of Two Parallel Pumps with Two-Speed Motors
Fig. 39 Example of Two Parallel Pumps with Two-Speed Motors
Fig. 40 Primary-Secondary Pumping
Fig. 40 Primary-Secondary Pumping
Fig. 40 Primary-Secondary Pumping
Fig. 40 Primary-Secondary Pumping
Fig. 41 Variable-Speed Source-Distributed Pumping
Fig. 41 Variable-Speed Source-Distributed Pumping
Fig. 41 Variable-Speed Source-Distributed Pumping
Fig. 41 Variable-Speed Source-Distributed Pumping
Variable-Speed Pumping
Variable-Speed Pumping
Distributed Pumping
Distributed Pumping
Fig. 42 Variable-Speed Distributed Pumping
Fig. 42 Variable-Speed Distributed Pumping
Fig. 42 Variable-Speed Distributed Pumping
Fig. 42 Variable-Speed Distributed Pumping
Fig. 43 Efficiency Comparison of Four-Pole Motors
Fig. 43 Efficiency Comparison of Four-Pole Motors
Fig. 43 Efficiency Comparison of Four-Pole Motors
Fig. 43 Efficiency Comparison of Four-Pole Motors
Motive Power
Motive Power
679 Fig. 44 Typical Efficiency Range of Variable-Speed Drives
Fig. 44 Typical Efficiency Range of Variable-Speed Drives
Fig. 44 Typical Efficiency Range of Variable-Speed Drives
Fig. 44 Typical Efficiency Range of Variable-Speed Drives
Energy Conservation in Pumping
Energy Conservation in Pumping
Installation, Operation, and Commissioning
Installation, Operation, and Commissioning
Fig. 45 Base Plate-Mounted Centrifugal Pump Installation
Fig. 45 Base Plate-Mounted Centrifugal Pump Installation
Fig. 45 Base Plate-Mounted Centrifugal Pump Installation
Fig. 45 Base Plate-Mounted Centrifugal Pump Installation
Fig. 46 In-Line Pump Installation
Fig. 46 In-Line Pump Installation
Fig. 46 In-Line Pump Installation
Fig. 46 In-Line Pump Installation
680 Table 2 Pumping System Noise Analysis Guide
Table 2 Pumping System Noise Analysis Guide
Table 3 Pumping System Flow Analysis Guide
Table 3 Pumping System Flow Analysis Guide
Troubleshooting
Troubleshooting
References
References
681 Bibliography
Bibliography
682 I-P_S08_Ch44
I-P_S08_Ch44
Motors
Motors
Alternating-Current Power Supply
Alternating-Current Power Supply
Table 1 Motor and Motor Control Equipment Voltages (Alternating Current)
Table 1 Motor and Motor Control Equipment Voltages (Alternating Current)
683 Table 2 Effect of Voltage and Frequency Variation on Induction Motor Characteristics
Table 2 Effect of Voltage and Frequency Variation on Induction Motor Characteristics
Codes and Standards
Codes and Standards
Motor Efficiency
Motor Efficiency
684 Fig. 1 Typical Performance Characteristics of Capacitor- Start/Induction-Run Two-Pole General-Purpose Motor, 1 hp
Fig. 1 Typical Performance Characteristics of Capacitor- Start/Induction-Run Two-Pole General-Purpose Motor, 1 hp
Fig. 1 Typical Performance Characteristics of Capacitor- Start/Induction-Run Two-Pole General-Purpose Motor, 1 hp
Fig. 1 Typical Performance Characteristics of Capacitor- Start/Induction-Run Two-Pole General-Purpose Motor, 1 hp
Fig. 2 Typical Performance Characteristics of Resistance- Start Split-Phase Two-Pole Hermetic Motor, 0.25 hp
Fig. 2 Typical Performance Characteristics of Resistance- Start Split-Phase Two-Pole Hermetic Motor, 0.25 hp
Fig. 2 Typical Performance Characteristics of Resistance- Start Split-Phase Two-Pole Hermetic Motor, 0.25 hp
Fig. 2 Typical Performance Characteristics of Resistance- Start Split-Phase Two-Pole Hermetic Motor, 0.25 hp
Fig. 3 Typical Performance Characteristics of Permanent Split-Capacitor Two-Pole Motor, 1 hp
Fig. 3 Typical Performance Characteristics of Permanent Split-Capacitor Two-Pole Motor, 1 hp
Fig. 3 Typical Performance Characteristics of Permanent Split-Capacitor Two-Pole Motor, 1 hp
Fig. 3 Typical Performance Characteristics of Permanent Split-Capacitor Two-Pole Motor, 1 hp
685 Fig. 4 Typical Performance Characteristics of Three-Phase Two-Pole Motor, 5 hp
Fig. 4 Typical Performance Characteristics of Three-Phase Two-Pole Motor, 5 hp
Fig. 4 Typical Performance Characteristics of Three-Phase Two-Pole Motor, 5 hp
Fig. 4 Typical Performance Characteristics of Three-Phase Two-Pole Motor, 5 hp
General-Purpose Induction Motors
General-Purpose Induction Motors
Table 3 Motor Types
Table 3 Motor Types
Application
Application
Hermetic Motors
Hermetic Motors
686 Table 4 Characteristics of AC Motors (Nonhermetic)
Table 4 Characteristics of AC Motors (Nonhermetic)
Application
Application
Integral Thermal Protection
Integral Thermal Protection
687 Motor Protection and Control
Motor Protection and Control
Separate Motor Protection
Separate Motor Protection
Protection of Control Apparatus and Branch Circuit Conductors
Protection of Control Apparatus and Branch Circuit Conductors
688 Three-Phase Motor-Starting and Control Methods
Three-Phase Motor-Starting and Control Methods
Direct-Current Motor-Starting and Control Methods
Direct-Current Motor-Starting and Control Methods
Single-Phase Motor-Starting Methods
Single-Phase Motor-Starting Methods
689 Air Volume Control
Air Volume Control
Fig. 5 Typical Fan Duty Cycle for VAV System
Fig. 5 Typical Fan Duty Cycle for VAV System
Fig. 5 Typical Fan Duty Cycle for VAV System
Fig. 5 Typical Fan Duty Cycle for VAV System
Fig. 6 Outlet Damper Control
Fig. 6 Outlet Damper Control
Fig. 6 Outlet Damper Control
Fig. 6 Outlet Damper Control
690 Fig. 7 Variable Inlet Vane Control
Fig. 7 Variable Inlet Vane Control
Fig. 7 Variable Inlet Vane Control
Fig. 7 Variable Inlet Vane Control
Fig. 8 Eddy Current Coupling Control
Fig. 8 Eddy Current Coupling Control
Fig. 8 Eddy Current Coupling Control
Fig. 8 Eddy Current Coupling Control
Variable-Speed Drives (VSD)
Variable-Speed Drives (VSD)
Fig. 9 AC Drive Control
Fig. 9 AC Drive Control
Fig. 9 AC Drive Control
Fig. 9 AC Drive Control
691 Table 5 Comparison of VAV Energy Consumption with Various Volume Control Techniques
Table 5 Comparison of VAV Energy Consumption with Various Volume Control Techniques
Power Transistor Characteristics
Power Transistor Characteristics
Fig. 10 Bipolar Versus IGBT PWM Switching
Fig. 10 Bipolar Versus IGBT PWM Switching
Fig. 10 Bipolar Versus IGBT PWM Switching
Fig. 10 Bipolar Versus IGBT PWM Switching
Motor and Conductor Impedance
Motor and Conductor Impedance
Fig. 11 Motor and Drive Relative Impedance
Fig. 11 Motor and Drive Relative Impedance
Fig. 11 Motor and Drive Relative Impedance
Fig. 11 Motor and Drive Relative Impedance
Motor Ratings and NEMA Standards
Motor Ratings and NEMA Standards
692 Fig. 12 Switching Times, Cable Distance, and Pulse Peak Voltage
Fig. 12 Switching Times, Cable Distance, and Pulse Peak Voltage
Fig. 12 Typical Switching Times, Cable Distance, and Pulse Peak Voltage
Fig. 12 Typical Switching Times, Cable Distance, and Pulse Peak Voltage
Fig. 13 Reflected Wave Voltage Levels at Drive and Motor Insulation
Fig. 13 Reflected Wave Voltage Levels at Drive and Motor Insulation
Fig. 13 Typical Reflected Wave Voltage Levels at Drive and Motor Insulation
Fig. 13 Typical Reflected Wave Voltage Levels at Drive and Motor Insulation
Fig. 14 Motor Voltage Peak and dv/dt Limits
Fig. 14 Motor Voltage Peak and dv/dt Limits
Fig. 14 Motor Voltage Peak and dv/dt Limits
Fig. 14 Motor Voltage Peak and dv/dt Limits
Fig. 15 Damaging Reflected Waves above Motor CIV Levels
Fig. 15 Damaging Reflected Waves above Motor CIV Levels
Fig. 15 Damaging Reflected Waves above Motor CIV Levels
Fig. 15 Damaging Reflected Waves above Motor CIV Levels
Motor Noise and Drive Carrier Frequencies
Motor Noise and Drive Carrier Frequencies
693 Fig. 16 Motor Audible Noise
Fig. 16 Motor Audible Noise
Fig. 16 Motor Audible Noise
Fig. 16 Motor Audible Noise
Carrier Frequencies and Drive Ratings
Carrier Frequencies and Drive Ratings
Power Distribution System Effects
Power Distribution System Effects
Fig. 17 Voltage Waveform Distortion by Pulse Width Modulated VSD
Fig. 17 Voltage Waveform Distortion by Pulse Width Modulated VSD
Fig. 17 Voltage Waveform Distortion by Pulse-Width- Modulated VSD
Fig. 17 Voltage Waveform Distortion by Pulse-Width- Modulated VSD
VSDs and Harmonics
VSDs and Harmonics
694 Fig. 18 Basic Elements of Solid-State Drive
Fig. 18 Basic Elements of Solid-State Drive
Fig. 18 Basic Elements of Solid-State Drive
Fig. 18 Basic Elements of Solid-State Drive
695 References
References
Bibliography
Bibliography
696 I-P_S08_Ch45
I-P_S08_Ch45
Pipe
Pipe
Steel Pipe
Steel Pipe
Copper Tube
Copper Tube
Table 1 Allowable Stressesa for Pipe and Tube
Table 1 Allowable Stressesa for Pipe and Tube
697 Ductile Iron and Cast Iron
Ductile Iron and Cast Iron
Fittings
Fittings
Joining Methods
Joining Methods
Threading
Threading
Soldering and Brazing
Soldering and Brazing
Flared and Compression Joints
Flared and Compression Joints
698 Table 2 Steel Pipe Data
Table 2 Steel Pipe Data
699 Table 3 Copper Tube Data
Table 3 Copper Tube Data
700 Table 4 Internal Working Pressure for Copper Tube Joints
Table 4 Internal Working Pressure for Copper Tube Joints
Flanges
Flanges
Welding
Welding
Reinforced Outlet Fittings
Reinforced Outlet Fittings
Other Joints
Other Joints
Unions
Unions
701 Special Systems
Special Systems
Selection of Materials
Selection of Materials
Table 5 Application of Pipe, Fittings, and Valves for Heating and Air Conditioning
Table 5 Application of Pipe, Fittings, and Valves for Heating and Air Conditioning
702 Table 6 Suggested Hanger Spacing and Rod Size for Straight Horizontal Runs
Table 6 Suggested Hanger Spacing and Rod Size for Straight Horizontal Runs
Pipe Wall Thickness
Pipe Wall Thickness
Stress Calculations
Stress Calculations
Plastic Piping
Plastic Piping
703 Allowable Stress
Allowable Stress
Plastic Material Selection
Plastic Material Selection
Pipe-Supporting Elements
Pipe-Supporting Elements
704 Table 7 Properties of Plastic Pipe Materialsa
Table 7 Properties of Plastic Pipe Materialsa
705 Table 8 Manufacturers’ Recommendationsa,b for Plastic Materials
Table 8 Manufacturers’ Recommendationsa,b for Plastic Materials
Table 9 Capacities of ASTM A36 Steel Threaded Rods
Table 9 Capacities of ASTM A36 Steel Threaded Rods
Pipe Expansion and Flexibility
Pipe Expansion and Flexibility
Table 10 Thermal Expansion of Metal Pipe
Table 10 Thermal Expansion of Metal Pipe
Pipe Bends and Loops
Pipe Bends and Loops
706 L Bends
L Bends
Fig. 1 Guided Cantilever Beam
Fig. 1 Guided Cantilever Beam
Fig. 2 Z Bend in Pipe
Fig. 2 Z Bend in Pipe
Fig. 2 Z Bend in Pipe
Fig. 2 Z Bend in Pipe
Z Bends
Z Bends
U Bends and Pipe Loops
U Bends and Pipe Loops
707 Table 11 Pipe Loop Design for A53 Grade B Carbon Steel Pipe Through 400ËšF
Table 11 Pipe Loop Design for A53 Grade B Carbon Steel Pipe Through 400ËšF
Cold Springing of Pipe
Cold Springing of Pipe
Analyzing Existing Piping Configurations
Analyzing Existing Piping Configurations
Fig. 3 Multiplane Pipe System
Fig. 3 Multiplane Pipe System
Fig. 3 Multiplane Pipe System
Fig. 3 Multiplane Pipe System
Expansion Joints and Expansion Compensating Devices
Expansion Joints and Expansion Compensating Devices
708 Packed Expansion Joints
Packed Expansion Joints
Fig. 4 Packed Slip Expansion Joint
Fig. 4 Packed Slip Expansion Joint
Fig. 4 Packed Slip Expansion Joint
Fig. 4 Packed Slip Expansion Joint
Fig. 5 Flexible Ball Joint
Fig. 5 Flexible Ball Joint
Fig. 5 Flexible Ball Joint
Fig. 5 Flexible Ball Joint
Packless Expansion Joints
Packless Expansion Joints
709 References
References
Bibliography
Bibliography
710 I-P_S08_Ch46
I-P_S08_Ch46
Fundamentals
Fundamentals
Fig. 1 Valve Components
Fig. 1 Valve Components
Fig. 1 Valve Components
Fig. 1 Valve Components
Body Ratings
Body Ratings
Materials
Materials
711 Flow Coefficient and Pressure Drop
Flow Coefficient and Pressure Drop
Fig. 2 Flow Coefficient Test Arrangement
Fig. 2 Flow Coefficient Test Arrangement
Fig. 2 Flow Coefficient Test Arrangement
Fig. 2 Flow Coefficient Test Arrangement
Cavitation
Cavitation
Fig. 3 Valve Cavitation Progress at Sharp Curves
Fig. 3 Valve Cavitation Progress at Sharp Curves
Fig. 3 Valve Cavitation at Sharp Curves
Fig. 3 Valve Cavitation at Sharp Curves
Water Hammer
Water Hammer
Noise
Noise
Body Styles
Body Styles
712 Manual Valves
Manual Valves
Selection
Selection
Globe Valves
Globe Valves
Fig. 4 Globe Valve
Fig. 4 Globe Valve
Fig. 4 Globe Valve
Fig. 4 Globe Valve
Gate Valves
Gate Valves
Fig. 5 Globe Valve
Fig. 5 Globe Valve
Fig. 5 Two Variations of Gate Valve
Fig. 5 Two Variations of Gate Valve
Plug Valves
Plug Valves
Ball Valves
Ball Valves
713 Fig. 6 Plug Valve
Fig. 6 Plug Valve
Fig. 6 Plug Valve
Fig. 6 Plug Valve
Fig. 7 Ball Valve
Fig. 7 Ball Valve
Fig. 7 Ball Valve
Fig. 7 Ball Valve
Butterfly Valves
Butterfly Valves
Fig. 8 Butterfly Valve
Fig. 8 Butterfly Valve
Fig. 8 Butterfly Valve
Fig. 8 Butterfly Valve
Pinch Valves
Pinch Valves
Automatic Valves
Automatic Valves
Actuators
Actuators
714 Pneumatic Actuators
Pneumatic Actuators
Fig. 9 Two-Way, Direct-Acting Control Valve with Pneumatic Actuator and Positioner
Fig. 9 Two-Way, Direct-Acting Control Valve with Pneumatic Actuator and Positioner
Fig. 9 Two-Way, Direct-Acting Control Valve with Pneumatic Actuator and Positioner
Fig. 9 Two-Way, Direct-Acting Control Valve with Pneumatic Actuator and Positioner
Electric Actuators
Electric Actuators
Fig. 10 Two-Way Control Valve with Electric Actuator
Fig. 10 Two-Way Control Valve with Electric Actuator
Fig. 10 Two-Way Control Valve with Electric Actuator
Fig. 10 Two-Way Control Valve with Electric Actuator
Electrohydraulic Actuators
Electrohydraulic Actuators
715 Solenoids
Solenoids
Fig. 11 Electric Solenoid Valve
Fig. 11 Electric Solenoid Valve
Fig. 11 Electric Solenoid Valve
Fig. 11 Electric Solenoid Valve
Thermostatic Radiator Valves
Thermostatic Radiator Valves
Fig. 12 Thermostatic Valves
Fig. 12 Thermostatic Valves
Fig. 12 Thermostatic Valves
Fig. 12 Thermostatic Valves
Control of Automatic Valves
Control of Automatic Valves
Two-Way Valves (Single- and Double-Seated)
Two-Way Valves (Single- and Double-Seated)
Three-Way Valves
Three-Way Valves
Special-Purpose Valves
Special-Purpose Valves
Ball Valves
Ball Valves
716 Fig. 13 Typical Three-Way Control HVAC Applications
Fig. 13 Typical Three-Way Control HVAC Applications
Fig. 13 Typical Three-Way Control Applications
Fig. 13 Typical Three-Way Control Applications
Fig. 14 Float Valve and Cutoff Steam Boiler Application
Fig. 14 Float Valve and Cutoff Steam Boiler Application
Fig. 14 Float Valve and Cutoff Steam Boiler Application
Fig. 14 Float Valve and Cutoff Steam Boiler Application
Butterfly Valves
Butterfly Valves
Fig. 15 Butterfly Valves-Diverting Tee Application
Fig. 15 Butterfly Valves-Diverting Tee Application
Fig. 15 Butterfly Valves, Diverting Tee Application
Fig. 15 Butterfly Valves, Diverting Tee Application
Fig. 16 Control Valve Flow Characteristics
Fig. 16 Control Valve Flow Characteristics
Fig. 16 Control Valve Flow Characteristics
Fig. 16 Control Valve Flow Characteristics
Control Valve Flow Characteristics
Control Valve Flow Characteristics
717 Control Valve Sizing
Control Valve Sizing
Fig. 17 Heat Output, Flow, and Stem Travel Characteristics of Equal Percentage Valve
Fig. 17 Heat Output, Flow, and Stem Travel Characteristics of Equal Percentage Valve
Fig. 17 Heat Output, Flow, and Stem Travel Characteristics of Equal Percentage Valve
Fig. 17 Heat Output, Flow, and Stem Travel Characteristics of Equal Percentage Valve
Fig. 18 Authority Distortion of Linear Flow Characteristics
Fig. 18 Authority Distortion of Linear Flow Characteristics
Fig. 18 Authority Distortion of Linear Flow Characteristics
Fig. 18 Authority Distortion of Linear Flow Characteristics
Fig. 19 Authority Distortion of Equal Percentage Flow Characteristic
Fig. 19 Authority Distortion of Equal Percentage Flow Characteristic
Fig. 19 Authority Distortion of Equal-Percentage Flow Characteristic
Fig. 19 Authority Distortion of Equal-Percentage Flow Characteristic
718 Applications
Applications
Balancing Valves
Balancing Valves
Manual Balancing Valves
Manual Balancing Valves
719 Fig. 20 Manual Balancing Valve
Fig. 20 Manual Balancing Valve
Fig. 20 Manual Balancing Valve
Fig. 20 Manual Balancing Valve
Automatic Flow-Limiting Valves
Automatic Flow-Limiting Valves
Fig. 21 Automatic Flow-Limiting Valve
Fig. 21 Automatic Flow-Limiting Valve
Fig. 21 Automatic Flow-Limiting Valve
Fig. 21 Automatic Flow-Limiting Valve
Fig. 22 Automatic Flow-Limiting Valve Curve
Fig. 22 Automatic Flow-Limiting Valve Curve
Fig. 22 Automatic Flow-Limiting Valve Curve
Fig. 22 Automatic Flow-Limiting Valve Curve
Balancing Valve Selection
Balancing Valve Selection
Multiple-Purpose Valves
Multiple-Purpose Valves
Fig. 23 Typical Multiple-Purpose Valve (Straight Pattern) on Discharge of Pump
Fig. 23 Typical Multiple-Purpose Valve (Straight Pattern) on Discharge of Pump
Fig. 23 Typical Multiple-Purpose Valve (Straight Pattern) on Discharge of Pump
Fig. 23 Typical Multiple-Purpose Valve (Straight Pattern) on Discharge of Pump
Safety Devices
Safety Devices
720 Fig. 24 Typical Multiple-Purpose Valve (Angle Pattern) on Discharge of Pump
Fig. 24 Typical Multiple-Purpose Valve (Angle Pattern) on Discharge of Pump
Fig. 24 Typical Multiple-Purpose Valve (Angle Pattern) on Discharge of Pump
Fig. 24 Typical Multiple-Purpose Valve (Angle Pattern) on Discharge of Pump
Fig. 25 Safety/Relief Valve with Drip-Pan Elbow
Fig. 25 Safety/Relief Valve with Drip-Pan Elbow
Fig. 25 Safety/Relief Valve with Drip-Pan Elbow
Fig. 25 Safety/Relief Valve with Drip-Pan Elbow
Fig. 26 Self-Operated Temperature Control Valve
Fig. 26 Self-Operated Temperature Control Valve
Fig. 26 Self-Operated Temperature Control Valve
Fig. 26 Self-Operated Temperature Control Valve
Self-Contained Temperature Control Valves
Self-Contained Temperature Control Valves
721 Fig. 27 Pilot-Operated Steam Valve
Fig. 27 Pilot-Operated Steam Valve
Fig. 27 Pilot-Operated Steam Valve
Fig. 27 Pilot-Operated Steam Valve
Pressure-Reducing Valves
Pressure-Reducing Valves
Makeup Water Valves
Makeup Water Valves
Check Valves
Check Valves
Fig. 28 Swing Check Valves
Fig. 28 Swing Check Valves
Fig. 28 Swing Check Valves
Fig. 28 Swing Check Valves
722 Stop-Check Valves
Stop-Check Valves
Backflow Prevention Devices
Backflow Prevention Devices
Fig. 29 Backflow Prevention Valve
Fig. 29 Backflow Prevention Valve
Fig. 29 Backflow Prevention Valve
Fig. 29 Backflow Prevention Valve
Selection
Selection
Installation
Installation
Steam Traps
Steam Traps
References
References
Bibliography
Bibliography
724 I-P_S08_Ch47
I-P_S08_Ch47
Fundamentals
Fundamentals
Fig. 1 Temperature Distribution in Counterflow Heat Exchanger
Fig. 1 Temperature Distribution in Counterflow Heat Exchanger
Types of Heat Exchangers
Types of Heat Exchangers
725 Shell-and-Tube Heat Exchangers
Shell-and-Tube Heat Exchangers
Fig. 2 Counterflow Path in Shell-and-Tube Heat Exchanger
Fig. 2 Counterflow Path in Shell-and-Tube Heat Exchanger
Fig. 2 Counterflow Path in Shell-and-Tube Heat Exchanger
Fig. 2 Counterflow Path in Shell-and-Tube Heat Exchanger
Fig. 3 U-Tube Shell-and-Tube Heat Exchanger with Removable Bundle Assembly and Cast “K” Pattern Flanged Head
Fig. 3 U-Tube Shell-and-Tube Heat Exchanger with Removable Bundle Assembly and Cast “K” Pattern Flanged Head
Fig. 3 U-Tube Shell-and-Tube Heat Exchanger with Removable Bundle Assembly and Cast K-Pattern Flanged Head
Fig. 3 U-Tube Shell-and-Tube Heat Exchanger with Removable Bundle Assembly and Cast K-Pattern Flanged Head
Fig. 4 U-Tube Tank Heater with Removable Bundle Assembly and Cast Bonnet Head
Fig. 4 U-Tube Tank Heater with Removable Bundle Assembly and Cast Bonnet Head
Fig. 4 U-Tube Tank Heater with Removable Bundle Assembly and Cast Bonnet Head
Fig. 4 U-Tube Tank Heater with Removable Bundle Assembly and Cast Bonnet Head
Fig. 5 U-Tube Tank Suction Heater with Removable Bundle Assembly and Cast Flanged Head
Fig. 5 U-Tube Tank Suction Heater with Removable Bundle Assembly and Cast Flanged Head
Fig. 5 U-Tube Tank Suction Heater with Removable Bundle Assembly and Cast Flanged Head
Fig. 5 U-Tube Tank Suction Heater with Removable Bundle Assembly and Cast Flanged Head
Fig. 6 Straight-Tube Fixed Tubesheet Shell-and-Tube Heat Exchanger with Fabricated Bonnet Heads and Split-Shell Flow Design
Fig. 6 Straight-Tube Fixed Tubesheet Shell-and-Tube Heat Exchanger with Fabricated Bonnet Heads and Split-Shell Flow Design
Fig. 6 Straight-Tube Fixed Tubesheet Shell-and-Tube Heat Exchanger with Fabricated Bonnet Heads and Split-Shell Flow Design
Fig. 6 Straight-Tube Fixed Tubesheet Shell-and-Tube Heat Exchanger with Fabricated Bonnet Heads and Split-Shell Flow Design
Fig. 7 Straight-Tube Floating Tubesheet Shell-and-Tube Heat Exchanger with Removable Bundle Assembly and Fabricated Channel Heads
Fig. 7 Straight-Tube Floating Tubesheet Shell-and-Tube Heat Exchanger with Removable Bundle Assembly and Fabricated Channel Heads
Fig. 7 Straight-Tube Floating Tubesheet Shell-and-Tube Heat Exchanger with Removable Bundle Assembly and Fabricated Channel Heads
Fig. 7 Straight-Tube Floating Tubesheet Shell-and-Tube Heat Exchanger with Removable Bundle Assembly and Fabricated Channel Heads
726 Plate Heat Exchangers
Plate Heat Exchangers
Fig. 8 Flow Path of Gasketed Plate Heat Exchanger
Fig. 8 Flow Path of Gasketed Plate Heat Exchanger
Fig. 8 Flow Path of Gasketed Plate Heat Exchanger
Fig. 8 Flow Path of Gasketed Plate Heat Exchanger
Fig. 9 Flow Path of Welded Plate Heat Exchanger
Fig. 9 Flow Path of Welded Plate Heat Exchanger
Fig. 9 Flow Path of Welded Plate Heat Exchanger
Fig. 9 Flow Path of Welded Plate Heat Exchanger
Double-Wall Heat Exchangers
Double-Wall Heat Exchangers
Fig. 10 Brazed-Plate Heat Exchanger
Fig. 10 Brazed-Plate Heat Exchanger
Fig. 10 Brazed-Plate Heat Exchanger
Fig. 10 Brazed-Plate Heat Exchanger
727 Fig. 11 Double-Wall U-Tube Heat Exchanger
Fig. 11 Double-Wall U-Tube Heat Exchanger
Fig. 11 Double-Wall U-Tube Heat Exchanger
Fig. 11 Double-Wall U-Tube Heat Exchanger
Fig. 12 Double-Wall Plate Heat Exchanger
Fig. 12 Double-Wall Plate Heat Exchanger
Fig. 12 Double-Wall Plate Heat Exchanger
Fig. 12 Double-Wall Plate Heat Exchanger
Components
Components
Shell-and-Tube Components
Shell-and-Tube Components
Fig. 13 Exploded View of Straight-Tube Heat Exchanger
Fig. 13 Exploded View of Straight-Tube Heat Exchanger
Fig. 13 Exploded View of Straight-Tube Heat Exchanger
Fig. 13 Exploded View of Straight-Tube Heat Exchanger
Plate Components
Plate Components
Fig. 14 Components of a Gasketed Plate Heat Exchanger
Fig. 14 Components of a Gasketed Plate Heat Exchanger
Fig. 14 Components of a Gasketed Plate Heat Exchanger
Fig. 14 Components of a Gasketed Plate Heat Exchanger
728 Application
Application
Selection Criteria
Selection Criteria
Thermal/Mechanical Design
Thermal/Mechanical Design
Cost
Cost
Serviceability
Serviceability
Space Requirements
Space Requirements
729 Steam
Steam
Installation
Installation
730 I-P_S08_Ch48
I-P_S08_Ch48
General Design Considerations
General Design Considerations
User Requirements
User Requirements
Application Requirements
Application Requirements
Fig. 1 Typical Rooftop Air-Cooled Single-Package Air Conditioner (Multizone)
Fig. 1 Typical Rooftop Air-Cooled Single-Package Air Conditioner (Multizone)
Fig. 2 Single-Package Air Equipment with Variable Air Volume
Fig. 2 Single-Package Air Equipment with Variable Air Volume
Fig. 2 Single-Package Air Equipment with Variable Air Volume
Fig. 2 Single-Package Air Equipment with Variable Air Volume
731 Installation
Installation
Service
Service
Sustainability
Sustainability
Types of Unitary Equipment
Types of Unitary Equipment
732 Table 1 ARI Standard 210/240 Classification of Unitary Air Conditioners
Table 1 ARI Standard 210/240 Classification of Unitary Air Conditioners
Table 2 ARI Standard 210/240 Classification of Air-Source Unitary Heat Pumps
Table 2 ARI Standard 210/240 Classification of Air-Source Unitary Heat Pumps
733 Combined Space-Conditioning/Water-Heating Systems
Combined Space-Conditioning/Water-Heating Systems
Typical Unitary Equipment
Typical Unitary Equipment
Fig. 3 Water-Cooled Single-Package Air Conditioner
Fig. 3 Water-Cooled Single-Package Air Conditioner
Fig. 3 Water-Cooled Single-Package Air Conditioner
Fig. 3 Water-Cooled Single-Package Air Conditioner
Fig. 4 Rooftop Installation of Air-Cooled Single-Package Unit
Fig. 4 Rooftop Installation of Air-Cooled Single-Package Unit
Fig. 4 Rooftop Installation of Air-Cooled Single-Package Unit
Fig. 4 Rooftop Installation of Air-Cooled Single-Package Unit
734 Fig. 5 Multistory Rooftop Installation of Single-Package Unit
Fig. 5 Multistory Rooftop Installation of Single-Package Unit
Fig. 5 Multistory Rooftop Installation of Single-Package Unit
Fig. 5 Multistory Rooftop Installation of Single-Package Unit
Fig. 6 Through-the-Wall Installation of Air-Cooled Single-Package Unit
Fig. 6 Through-the-Wall Installation of Air-Cooled Single-Package Unit
Fig. 6 Through-the-Wall Installation of Air-Cooled Single-Package Unit
Fig. 6 Through-the-Wall Installation of Air-Cooled Single-Package Unit
Fig. 7 Residential Installation of Split-System Air-Cooled Condensing Unit with Coil and Upflow Furnace
Fig. 7 Residential Installation of Split-System Air-Cooled Condensing Unit with Coil and Upflow Furnace
Fig. 7 Residential Installation of Split-System Air-Cooled Condensing Unit with Coil and Upflow Furnace
Fig. 7 Residential Installation of Split-System Air-Cooled Condensing Unit with Coil and Upflow Furnace
Fig. 8 Outdoor Installations of Split-System Air-Cooled Condensing Units with Coil and Upflow Furnace or with Indoor Blower-Coils
Fig. 8 Outdoor Installations of Split-System Air-Cooled Condensing Units with Coil and Upflow Furnace or with Indoor Blower-Coils
Fig. 8 Outdoor Installations of Split-System Air-Cooled Condensing Units with Coil and Upflow Furnace or with Indoor Blower-Coils
Fig. 8 Outdoor Installations of Split-System Air-Cooled Condensing Units with Coil and Upflow Furnace or with Indoor Blower-Coils
Equipment and System Standards
Equipment and System Standards
Energy Conservation and Efficiency
Energy Conservation and Efficiency
Fig. 9 Outdoor Installation of Split-System Air-Cooled Condensing Unit with Indoor Coil and Downflow Furnace
Fig. 9 Outdoor Installation of Split-System Air-Cooled Condensing Unit with Indoor Coil and Downflow Furnace
Fig. 9 Outdoor Installation of Split-System Air-Cooled Condensing Unit with Indoor Coil and Downflow Furnace
Fig. 9 Outdoor Installation of Split-System Air-Cooled Condensing Unit with Indoor Coil and Downflow Furnace
735 ARI Certification Programs
ARI Certification Programs
Safety Standards and Installation Codes
Safety Standards and Installation Codes
Air Conditioners
Air Conditioners
Refrigerant Circuit Design
Refrigerant Circuit Design
736 Air-Handling Systems
Air-Handling Systems
Electrical Design
Electrical Design
737 Mechanical Design
Mechanical Design
Accessories
Accessories
Heating
Heating
Air-Source Heat Pumps
Air-Source Heat Pumps
Fig. 10 Typical Schematic of Air-to-Air Heat Pump System
Fig. 10 Typical Schematic of Air-to-Air Heat Pump System
Fig. 10 Schematic Typical of Air-to-Air Heat Pump System
Fig. 10 Schematic Typical of Air-to-Air Heat Pump System
738 Add-On Heat Pumps
Add-On Heat Pumps
Fig. 11 Operating Characteristics of Single-Stage Unmodulated Heat Pump
Fig. 11 Operating Characteristics of Single-Stage Unmodulated Heat Pump
Fig. 11 Operating Characteristics of Single-Stage Unmodulated Heat Pump
Fig. 11 Operating Characteristics of Single-Stage Unmodulated Heat Pump
Selection
Selection
Refrigerant Circuit and Components
Refrigerant Circuit and Components
739 System Control and Installation
System Control and Installation
Water-Source Heat Pumps
Water-Source Heat Pumps
Fig. 12 Schematic of a Typical Water-Source Heat Pump System
Fig. 12 Schematic of a Typical Water-Source Heat Pump System
Fig. 12 Schematic of Typical Water-Source Heat Pump System
Fig. 12 Schematic of Typical Water-Source Heat Pump System
Systems
Systems
740 Fig. 13 Typical Horizontal Water-Source Heat Pump
Fig. 13 Typical Horizontal Water-Source Heat Pump
Fig. 13 Typical Horizontal Water-Source Heat Pump
Fig. 13 Typical Horizontal Water-Source Heat Pump
Fig. 14 Typical Vertical Water-Source Heat Pump
Fig. 14 Typical Vertical Water-Source Heat Pump
Fig. 14 Typical Vertical Water-Source Heat Pump
Fig. 14 Typical Vertical Water-Source Heat Pump
Fig. 15 Water-Source Heat Pump Systems
Fig. 15 Water-Source Heat Pump Systems
Fig. 15 Water-Source Heat Pump Systems
Fig. 15 Water-Source Heat Pump Systems
741 Performance Certification Programs
Performance Certification Programs
Equipment Design
Equipment Design
Table 3 Space Requirements for Typical Packaged Water-Source Heat Pumps
Table 3 Space Requirements for Typical Packaged Water-Source Heat Pumps
742 Variable-Refrigerant-Flow Heat Pumps
Variable-Refrigerant-Flow Heat Pumps
Application
Application
Categories
Categories
Refrigerant Circuit and Components
Refrigerant Circuit and Components
Heating and Defrost Operation
Heating and Defrost Operation
References
References
743 Bibliography
Bibliography
744 I-P_S08_Ch49
I-P_S08_Ch49
Room Air Conditioners
Room Air Conditioners
Fig. 1 Schematic View of Typical Room Air Conditioner
Fig. 1 Schematic View of Typical Room Air Conditioner
Fig. 1 Schematic View of Typical Room Air Conditioner
Fig. 1 Schematic View of Typical Room Air Conditioner
Sizes and Classifications
Sizes and Classifications
Design
Design
745 Compressors
Compressors
Evaporator and Condenser Coils
Evaporator and Condenser Coils
Restrictor Application and Sizing
Restrictor Application and Sizing
Fan Motor and Air Impeller Selection
Fan Motor and Air Impeller Selection
Electronics
Electronics
Performance Data
Performance Data
Efficiency
Efficiency
Sensible Heat Ratio
Sensible Heat Ratio
746 Energy Conservation and Efficiency
Energy Conservation and Efficiency
Table 1 NAECA Minimum Efficiency Standards for Room Air Conditioners
Table 1 NAECA Minimum Efficiency Standards for Room Air Conditioners
Table 2 Room Air Conditioners ENERGY STAR Criteria
Table 2 Room Air Conditioners ENERGY STAR Criteria
High-Efficiency Design
High-Efficiency Design
Special Features
Special Features
747 Safety Codes and Standards
Safety Codes and Standards
Product Standards
Product Standards
Installation and Service
Installation and Service
748 Packaged Terminal Air Conditioners
Packaged Terminal Air Conditioners
Sizes and Classifications
Sizes and Classifications
Fig. 2 Sectional Packaged Terminal Air Conditioner
Fig. 2 Sectional Packaged Terminal Air Conditioner
Fig. 2 Sectional Packaged Terminal Air Conditioner
Fig. 2 Sectional Packaged Terminal Air Conditioner
Fig. 3 Integrated Packaged Terminal Air Conditioner
Fig. 3 Integrated Packaged Terminal Air Conditioner
Fig. 3 Integrated Packaged Terminal Air Conditioner
Fig. 3 Integrated Packaged Terminal Air Conditioner
General Design Considerations
General Design Considerations
749 Design of PTAC/PTHP Components
Design of PTAC/PTHP Components
750 Heat Pump Operation
Heat Pump Operation
Performance and Safety Testing
Performance and Safety Testing
References
References
Bibliography
Bibliography
751 I-P_S08_Ch50
I-P_S08_Ch50
Terminology
Terminology
752 Classification of Systems
Classification of Systems
Storage Media
Storage Media
753 Basic Thermal Storage Concepts
Basic Thermal Storage Concepts
Benefits of Thermal Storage
Benefits of Thermal Storage
Design Considerations
Design Considerations
754 Sensible Thermal Storage Technology
Sensible Thermal Storage Technology
Sensible Energy Storage
Sensible Energy Storage
Temperature Range and Storage Size
Temperature Range and Storage Size
Techniques for Thermal Separation in Sensible Storage Devices
Techniques for Thermal Separation in Sensible Storage Devices
Fig. 1 Typical Two-Ring Octagonal Slotted Pipe Diffuser
Fig. 1 Typical Two-Ring Octagonal Slotted Pipe Diffuser
Fig. 1 Typical Two-Ring Octagonal Slotted Pipe Diffuser
Fig. 1 Typical Two-Ring Octagonal Slotted Pipe Diffuser
755 Fig. 2 Typical Temperature Stratification Profile in Storage Tank
Fig. 2 Typical Temperature Stratification Profile in Storage Tank
Fig. 2 Typical Temperature Stratification Profile in Storage Tank
Fig. 2 Typical Temperature Stratification Profile in Storage Tank
Performance of Chilled-Water Storage Systems
Performance of Chilled-Water Storage Systems
Fig. 3 Typical Chilled-Water Storage Profiles
Fig. 3 Typical Chilled-Water Storage Profiles
Fig. 3 Typical Chilled-Water Storage Profiles
Fig. 3 Typical Chilled-Water Storage Profiles
Design of Stratification Diffusers
Design of Stratification Diffusers
Fig. 4 Radial Disk Diffuser
Fig. 4 Radial Disk Diffuser
Fig. 4 Radial Disk Diffuser
Fig. 4 Radial Disk Diffuser
Table 1 Chilled-Water Density Table
Table 1 Chilled-Water Density Table
756 Storage Tank Insulation
Storage Tank Insulation
Other Factors
Other Factors
Chilled-Water Storage Tanks
Chilled-Water Storage Tanks
Low-Temperature Fluid Sensible Energy Storage
Low-Temperature Fluid Sensible Energy Storage
Storage in Aquifers
Storage in Aquifers
757 Latent Cool Storage Technology
Latent Cool Storage Technology
Water as Phase-Change Thermal Storage Medium
Water as Phase-Change Thermal Storage Medium
Internal Melt Ice-On-Coil
Internal Melt Ice-On-Coil
758 Fig. 5 Charge and Discharge of Internal-Melt Ice Storage
Fig. 5 Charge and Discharge of Internal-Melt Ice Storage
Fig. 5 Charge and Discharge of Internal-Melt Ice Storage
Fig. 5 Charge and Discharge of Internal-Melt Ice Storage
External-Melt Ice-On-Coil
External-Melt Ice-On-Coil
Fig. 6 Charge and Discharge of External-Melt Ice Storage
Fig. 6 Charge and Discharge of External-Melt Ice Storage
Fig. 6 Charge and Discharge of External-Melt Ice Storage
Fig. 6 Charge and Discharge of External-Melt Ice Storage
759 Encapsulated Ice
Encapsulated Ice
Fig. 7 Encapsulated Ice: Spherical Container
Fig. 7 Encapsulated Ice: Spherical Container
Fig. 7 Encapsulated Ice: Spherical Container
Fig. 7 Encapsulated Ice: Spherical Container
Ice Harvesters
Ice Harvesters
760 Fig. 8 Ice-Harvesting Schematic
Fig. 8 Ice-Harvesting Schematic
Fig. 8 Ice-Harvesting Schematic
Fig. 8 Ice-Harvesting Schematic
Ice Slurry Systems
Ice Slurry Systems
761 Other Phase-Change Materials
Other Phase-Change Materials
Heat Storage Technology
Heat Storage Technology
Sizing Heat Storage Systems
Sizing Heat Storage Systems
Fig. 9 Representative Sizing Factor Selection Graph for Residential Storage Heaters
Fig. 9 Representative Sizing Factor Selection Graph for Residential Storage Heaters
Fig. 9 Representative Sizing Factor Selection Graph for Residential Storage Heaters
Fig. 9 Representative Sizing Factor Selection Graph for Residential Storage Heaters
Service Water Heating
Service Water Heating
762 Brick Storage (ETS) Heaters
Brick Storage (ETS) Heaters
Fig. 10 Typical Storage Heater Performance Characteristics
Fig. 10 Typical Storage Heater Performance Characteristics
Fig. 10 Typical Storage Heater Performance Characteristics
Fig. 10 Typical Storage Heater Performance Characteristics
Fig. 11 Room Storage Heater
Fig. 11 Room Storage Heater
Fig. 11 Room Storage Heater
Fig. 11 Room Storage Heater
Fig. 12 Room Storage Heater Dynamic Discharge and Charge Curves
Fig. 12 Room Storage Heater Dynamic Discharge and Charge Curves
Fig. 13
Fig. 13
Fig. 12 Room Storage Heater Dynamic Discharge and Charge Curves
Fig. 12 Room Storage Heater Dynamic Discharge and Charge Curves
763 Fig. 14 Static Discharge from Room Storage Heater
Fig. 14 Static Discharge from Room Storage Heater
Fig. 13 Static Discharge from Room Storage Heater
Fig. 13 Static Discharge from Room Storage Heater
Pressurized Water Storage Heaters
Pressurized Water Storage Heaters
Fig. 15 Pressurized Water Heater
Fig. 15 Pressurized Water Heater
Fig. 14 Pressurized Water Heater
Fig. 14 Pressurized Water Heater
764 Underfloor Heat Storage
Underfloor Heat Storage
Fig. 16 Underfloor Heat Storage
Fig. 16 Underfloor Heat Storage
Fig. 15 Underfloor Heat Storage
Fig. 15 Underfloor Heat Storage
Building Mass Thermal Storage
Building Mass Thermal Storage
Fig. 17 Annual Energy Cost Savings from Precooling, Relative to Conventional Controls, as Function of Re
Fig. 17 Annual Energy Cost Savings from Precooling, Relative to Conventional Controls, as Function of Re
Fig. 16 Annual Energy Cost Savings from Precooling, Relative to Conventional Controls, as Function of Re
Fig. 16 Annual Energy Cost Savings from Precooling, Relative to Conventional Controls, as Function of Re
Fig. 18 Annual Energy Cost Savings from Precooling, Relative to Conventional Controls, as Function of Rd
Fig. 18 Annual Energy Cost Savings from Precooling, Relative to Conventional Controls, as Function of Rd
Fig. 17 Annual Energy Cost Savings from Precooling, Relative to Conventional Controls, as Function of Rd
Fig. 17 Annual Energy Cost Savings from Precooling, Relative to Conventional Controls, as Function of Rd
765 Storage Charging and Discharging
Storage Charging and Discharging
Design Considerations
Design Considerations
Factors Favoring Thermal Storage
Factors Favoring Thermal Storage
766 Factors Discouraging Thermal Storage
Factors Discouraging Thermal Storage
Typical Applications
Typical Applications
767 Sizing Cool Storage Systems
Sizing Cool Storage Systems
Sizing Strategies
Sizing Strategies
Calculating Load Profiles
Calculating Load Profiles
768 Sizing Equipment
Sizing Equipment
769 Application of Thermal Storage Systems
Application of Thermal Storage Systems
Chilled-Water Storage Systems
Chilled-Water Storage Systems
Fig. 19 Typical Sensible Storage Connection Scheme
Fig. 19 Typical Sensible Storage Connection Scheme
Fig. 18 Typical Sensible Storage Connection Scheme
Fig. 18 Typical Sensible Storage Connection Scheme
770 Fig. 21
Fig. 21
Fig. 19 Direct Transfer Pumping Interface
Fig. 19 Direct Transfer Pumping Interface
Fig. 22 Charge Mode Status of Direct Transfer Pumping Interface
Fig. 22 Charge Mode Status of Direct Transfer Pumping Interface
Fig. 20 Charge Mode Status of Direct Transfer Pumping Interface
Fig. 20 Charge Mode Status of Direct Transfer Pumping Interface
Fig. 23 Indirect Transfer Pumping Interface
Fig. 23 Indirect Transfer Pumping Interface
Fig. 21 Indirect Transfer Pumping Interface
Fig. 21 Indirect Transfer Pumping Interface
Fig. 24 Charge Mode Status of Indirect Transfer Pumping Interface
Fig. 24 Charge Mode Status of Indirect Transfer Pumping Interface
Fig. 22 Charge Mode Status of Indirect Transfer Pumping Interface
Fig. 22 Charge Mode Status of Indirect Transfer Pumping Interface
771 Fig. 25 Primary/Secondary Chilled-Water Plant with Stratified Storage Tank as Decoupler
Fig. 25 Primary/Secondary Chilled-Water Plant with Stratified Storage Tank as Decoupler
Fig. 23 Primary/Secondary Chilled-Water Plant with Stratified Storage Tank as Decoupler
Fig. 23 Primary/Secondary Chilled-Water Plant with Stratified Storage Tank as Decoupler
Ice (and PCM) Storage Systems
Ice (and PCM) Storage Systems
772 Fig. 26 Series Flow, Chiller Upstream
Fig. 26 Series Flow, Chiller Upstream
Fig. 24 Series Flow, Chiller Upstream
Fig. 24 Series Flow, Chiller Upstream
Fig. 27 Series Flow, Chiller Downstream
Fig. 27 Series Flow, Chiller Downstream
Fig. 25 Series Flow, Chiller Downstream
Fig. 25 Series Flow, Chiller Downstream
Fig. 28 Parallel Flow for Chiller and Storage
Fig. 28 Parallel Flow for Chiller and Storage
Fig. 26 Parallel Flow for Chiller and Storage
Fig. 26 Parallel Flow for Chiller and Storage
773 Operation and Control
Operation and Control
Operating Modes
Operating Modes
Table 2 Common Thermal Storage Operating Modes
Table 2 Common Thermal Storage Operating Modes
774 Control Strategies
Control Strategies
Operating Strategies
Operating Strategies
775 Table 3 Recommended Accuracies of Instrumentation for Measurement of Cool Storage Capacity
Table 3 Recommended Accuracies of Instrumentation for Measurement of Cool Storage Capacity
Instrumentation Requirements
Instrumentation Requirements
Other Design Considerations
Other Design Considerations
Hydronic System Design for Open Systems
Hydronic System Design for Open Systems
Cold-Air Distribution
Cold-Air Distribution
776 Storage of Heat in Cool Storage Units
Storage of Heat in Cool Storage Units
System Interface
System Interface
777 Insulation
Insulation
Cost Considerations
Cost Considerations
Maintenance Considerations
Maintenance Considerations
Water Treatment
Water Treatment
778 Commissioning
Commissioning
Statement of Design Intent
Statement of Design Intent
779 Commissioning Specification
Commissioning Specification
Required Information
Required Information
Performance Verification
Performance Verification
Sample Commissioning Plan Outline for Chilled-Water Plants with Thermal Storage Systems
Sample Commissioning Plan Outline for Chilled-Water Plants with Thermal Storage Systems
780 Good Practices
Good Practices
References
References
782 Bibliography
Bibliography
784 I-P_S08_Ch51
I-P_S08_Ch51
Selected Codes and Standards Published by Various Societies and Associations
Selected Codes and Standards Published by Various Societies and Associations
809 ORGANIZATIONS
ORGANIZATIONS
ASHRAE Handbook 08 IP 2008
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