IES RP 5 2013

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IES RP-5 Recommended Practice for Daylighting Buildings

Published By	Publication Date	Number of Pages
IES	2013	85

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Category: IES

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Description

This Recommended Practice conveniently gathers the basic data and techniques which help those concerned with the design of buildings and lighting systems understand and appreciate the opportunities and constraints inherent in daylighting. Daylighted buildings offer significant benefits that include visual and thermal comfort, occupant satisfaction, a connection to the outdoor environment, and reduced energy consumption, maintenance costs, and greenhouse gas emissions. Daylighting can result in significant electric lighting reduction in commercial buildings

PDF Catalog

PDF Pages	PDF Title
1	Cover
2	Copyright
4	Committee
6	Contents
9	Foreword
10	1.0 Introduction 2.0 Daylighting Benefits 2.1 Health, Wellness and Human Performance 2.2 Environmental Factors
11	2.3 Building Energy Efficiency
12	3.0 Daylighting Challenges 3.1 Daylight Glare
14	3.2 Unwanted Solar Heat Gain
15	3.3 Daylight’s Dynamic Nature 3.4 Electric Lighting Controls 3.5 Integrated Design
18	4.0 Daylighting Sources 4.1 The Sun
19	4.1.1 The Solar Spectrum 4.1.2 Solar Angles and Sun Paths
20	4.1.3 Sun Path Diagrams
23	4.2 The Sky
24	4.3 Daylight Availability 4.4 Reflected Daylight
25	5.0 Standard Sky Luminance Distributions
26	6.0 Daylight Characteristics 6.1 Intensity
27	6.2 Spectral Distribution 6.3 Color Temperature
28	6.4 Color Rendering 6.5 Luminous Efficacy 6.5.1 Radiation Luminous Efficacy 6.5.2 Lighting System Luminous Efficacy
29	7.0 Daylighting Design 7.1 Performance Parameters 7.1.1 Daylight Metrics
30	7.1.2 Daylight Illuminance Metrics
31	7.1.2.1 Single- Point- in-Time Metrics 7.1.2.1.1 Point Illuminance 7.1.2.1.2 Daylight Factor (DF)
32	7.1.3 Annual Daylight Performance Metrics
33	7.1.3.1 Daylighting Autonomy (DA) 7.1.4 Annual Light Exposure Metrics
34	7.1.5 Glare 7.1.5.1 Daylight Glare Index 7.1.5.2 Daylight Glare Probability 7.1.6 Other Luminance-Based Metrics 7.2 Context Parameters 7.3 Design Parameters
35	7.3.1 Schematic Design Decisions 7.3.2 Building Shape and Mass 7.3.3 Building Orientation
37	8.0 Daylight Delivery Methods 8.1 Sidelighting 8.1.1 Window Size and Position
38	8.2 Light Shelves
40	8.3 Side-lighting and Interior Surfaces 8.4 Sloped Glazing 8.5 Top-lighting
42	8.6 Skylights 8.6.1 Skylight Wells 8.6.2 Skylight Shape, Size, and Spacing
43	8.7 Tubular Daylighting Devices
44	8.8 Core Sunlighting
45	8.8.1 Single-Axis Tracking 8.8.2 Dual-Axis Tracking
46	8.8.3 Dual-Axis Tracking with Optical Waveguide 8.8.4 Tracking Beam Sunlighting System Benefits and Drawbacks 8.9 Clerestories, Monitors, and Sawtooth Roofs
47	8.10 Atria 9.0 Fenestration Technologies
48	9.1 Fenestration Properties 9.1.1 Solar/Optical Properties
50	9.1.2 Visible Transmittance
51	9.1.3 Dirt Factor 9.2 Thermal Properties 9.2.1 U-factor
52	9.2.2 Solar Heat Gain Coefficient (SHGC) 9.2.3 Light-to-Solar Gain Ratio (LSG)
53	9.3 Tuning the Glazing for Each Elevation
54	9.4 National Fenestration Rating Council (NFRC)
55	10.0 Glazing Systems 10.1 Glass 10.2 Tinted Glazings
56	10.3 Reflective Glazings 10.4 Low-e and Spectrally Selective Coatings
58	10.5 Frits and Screens 10.6 Diffusing Glazings
59	10.7 Light Redirecting Materials 10.8 Dynamic Glazings
60	10.9 Retrofit Films 11.0 Shading Systems
61	11.1 Exterior Versus Interior Shading Systems
62	11.2 Shades and Daylighting Design
63	11.3 Horizontal Versus Vertical Shading Elements
64	11.4 Dynamic Shading Systems
66	11.4.1 Manual Operation 11.4.2 Automatic Operation 11.5 Top-light Shading
67	12.0 Frame Systems
68	13.0 Electric Lighting Integration 13.1 Top-lighting 13.2 Side-lighting
69	14.0 Electric Lighting Controls 14.1 Switching and Dimming 14.1.1 Switching 14.1.2 Dimming 14.2 Determining Available Daylight
70	14.3 Time-based Strategies 14.4.1 Open-loop Strategy Implementation 14.4.2 Closed-loop Strategies 14.5 Photosensor Characteristics
71	14.4 Photosensing Strategies 14.5.1 Spectral Sensitivity
72	14.5.2 Directional Sensitivity 14.6 Control Algorithms 14.6.1 Electric Lighting Zones 14.6.2 Switching Algorithms 14.6.3 On/Off Switching
73	14.6.4 Stepped Switching: Closed-Loop 14.6.5 Stepped Switching: Open-loop 14.6.6 Dimming Algorithms
74	14.6.7 Constant Set Point – Closed-loop 14.6.8 Sliding Set Point – Open- and Closed-loops 14.7 Photosensor Controls Commissioning 14.8 Control System Barriers and Issues
75	14.9 Commissioning 14.10 Single Sensor Approaches 14.11 Photosensor Directional Sensitivity
76	14.12 Emerging Technologies 14.12.1 Automated Continuous Calibration 14.12.2 Multi-sensor Systems
77	14.12.3 Customized Directional Sensitivities 15.0 Daylight Performance Simulation and Design Tools 15.1 Manual Methods and Tools
78	15.1.1 Sun Path Diagrams 15.1.2 Physical Scale Models
79	15.2 Computer-based Methods and Tools 15.2.1 Daylight Performance Simulation Tools
80	15.2.2 Radiance
81	15.2.3 AGI32, DIALux and 3ds Max Design
82	15.2.4 Energy Performance Simulation Tools
83	References