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BS EN 15316-4-2:2017:2018 Edition

$215.11

Energy performance of buildings. Method for calculation of system energy requirements and system efficiencies – Space heating generation systems, heat pump systems, Module M3-8-2, M8-8-2

Published By Publication Date Number of Pages
BSI 2018 90
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This European Standard covers heat pumps for space heating, heat pump water heaters (HPWH) and heat pumps with combined space heating and domestic hot water production in alternate or simultaneous operation, where the same heat pump delivers the heat to cover the space heating and domestic hot water heat requirement.

The standard provides a calculation method under steady conditions that corresponds to one calculation step.

The results of this calculation are incorporated in larger building models and take in account the influence of the external conditions and building control that influence the energy requirements for heating supplied by the heat pump system.

The scope of this part is to standardize the:

  • required inputs;

  • calculation methods;

  • required outputs

Generation for space heating and domestic hot water production of the following heat pump systems, including control of:

  • electrically-driven vapour compression cycle (VCC) heat pumps;

  • combustion engine-driven vapour compression cycle heat pumps;

  • thermally-driven vapour absorption cycle (VAC) heat pumps,

using combinations of heat source and heat distribution listed in Table 1.

Table 1 — Heating sources and energy distribution

This standard does not cover sizing or inspection of heat pumps.

This standard deals with heat generators for heating or for combined domestic hot water and heating service. Generators for domestic hot water only are taken into account into module M8-8.

NOTE 1 Heat pumps for cooling systems are taken into account into module M4–8.

NOTE 2 Heat pumps for space heating using air (distribution) are taken into account in module M5–8.

Other generation systems such as boilers are covered in other sub modules of part M3-8.

This is the revision of EN 15316-4-2:2008. The revision covers the adaptation of the standard to hourly and monthly energy calculation.

Table 2 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000-1.

NOTE 3 In CEN ISO/TR 52000-2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.

NOTE 4 The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.

Table 2 — Position of this standard, within the modular structure of the set of EPB standards

NOTE The shaded modules are not applicable

PDF Catalog

PDF Pages PDF Title
2 undefined
8 1 Scope
11 2 Normative references
3 Terms and definitions
15 4 Symbols and abbreviations
4.1 Symbols
4.2 Subscripts
16 5 Description of the methods
5.1 General
5.2 Multiple heat generators
17 5.3 System boundary
5.3.1 General
5.3.2 Physical factors taken into account:
5.4 Schematisation of the heat pump for heating
18 5.5 Energy input needed to meet the heat requirements for heat pumps system
20 5.6 Auxiliary energy (WHW;gen;aux)
5.7 Recoverable, recovered and unrecoverable heat losses
5.8 Calculation by zones
21 5.9 Combined heating and domestic hot water preparation
6 Generation with heat pump systems – Energy calculation (hourly, bin) – Method A
6.1 Output data
22 6.2 Input data
6.2.1 General
23 6.2.2 Product data
6.2.2.1 Product description data (qualitative)
6.2.2.2 Product technical data
25 6.2.2.3 Process design
6.2.2.4 Control
6.2.3 Operating conditions
27 6.2.4 Calculation parameters
28 6.2.5 Constants and physical data
6.3 Multiple heat generators
6.4 Calculation time steps
6.5 Flow chart
29 6.6 Energy requirements for space heating and DHW mode for the time step considered
6.6.1 Domestic hot water mode (DHW)
6.6.2 Space heating mode (SH)
6.6.3 Combined Domestic hot water and space heating mode (DHW + SH)
30 6.6.4 Storage for heating, domestic hot water
6.7 COP and energy used for heating, storage and domestic hot water
6.7.1 General
31 6.7.2 Calculation of COP and thermal capacity based on the EN 14511 series (Path A)
6.7.2.1 Calculation of COP and energy input at full load – general
6.7.2.2 COP at full load based on results issued from the EN 14511 series
33 6.7.2.3 Thermal capacity available at full load based on results issued from the EN 14511 series
34 6.7.2.4 Expression of energy and thermal capacity of the heat pump at full load for the different type of use
35 6.7.2.5 Comparison of energy at full load and energy requirements
6.7.2.6 Calculation of the part load (LR)
36 6.7.2.7 Calculation COP and energy input at part load for compressor heat pumps (for heating and storage)
39 6.7.3 Calculation of COP and thermal capacity based on EN 14825 (Path B)
6.7.3.1 General
6.7.3.2 Calculation of thermal capacity at operating conditions
40 6.7.3.3 Calculation of the exergetic coefficients
41 6.7.4 Absorption/Adsorption heat pumps
6.7.4.1 Driven energy at part load
6.7.4.2 Electrical energy for absorption/adsorption heat pump
6.8 Auxiliary energy (WH;gen;aux)
6.9 Energy used from the heat source
42 6.10 Calculation of back-up heater
6.10.1 General
6.10.2 Electrical back-up heater
6.10.3 Fuel back-up heater
6.11 Total losses and total recoverable heat losses of the generation subsystem
6.11.1 Recoverable heat losses from auxiliary consumption
43 6.11.2 Total generation subsystem losses
44 6.11.3 Recoverable heat losses due to generation subsystem envelope losses
6.11.4 Total recoverable heat losses of the generation subsystem
6.11.5 Ambient heat used by the generation subsystem
6.11.6 Renewable (or recovered) energy used by the heat pump
45 7 Method B – Monthly and annual energy calculation method
7.1 Calculation time steps
7.2 Output data
7.3 Principle of the calculation method B
7.3.1 General
7.3.2 Flow chart calculation process
46 7.4 Additional input Data
7.4.1 Data related to the definition of the bins
48 7.4.2 Weather data for monthly or annual calculation
7.4.3 Data for characterization of the control system for heating
49 7.5 Construction of the bins – Step 1
7.5.1 General
51 7.5.2 Application to monthly calculation period
7.5.3 Application to annual calculation period
7.5.4 Use of the temperatures defined in the test standards
52 7.6 Determination of energy requirement of the single bins – Step 2
7.6.1 Space heating mode
7.6.1.1 General case
7.6.1.2 Alternative method for space heating requirement
54 7.6.2 Domestic hot water mode
7.7 Determination of thermal performance of the heat pump (step 3)
7.7.1 General
7.7.2 Results of step 3
55 7.8 Determination of back-up energy of the single bins (step 4)
7.9 Calculation of auxiliary energy input (step 5)
7.10 Calculation of recoverable generation subsystem losses (step 6)
56 7.11 Calculation of the energy from the heat source (step 7)
7.12 Calculation of the total driving energy input to cover the requirements (step 8)
8 Quality control
8.1 Hourly, bin or monthly method
57 8.2 Main sources of errors
9 Compliance check
58 Annex A (normative)Template for input data
A.1 Heat pump description data
A.1.1 Heat pump type and use
A.1.1.1 Heat pump type
A.1.1.2 Type of end energy use (services)
A.1.1.3 Heat pump fuel
59 A.1.1.4 CE-marking
A.1.1.5 Information for back up system
A.1.2 Heat pump technical data
A.1.2.1 Heat pump
61 A.1.2.2 Weighting factor for adaptation of the COP to the operating conditions
A.1.2.3 Weighting factor for adaptation of the thermal capacity to the operating conditions
A.1.2.4 Auxiliary
62 A.1.3 Operation at part load
A.2 System design data
A.2.1 Factors for emitters
A.2.2 Factors for energy recovery
63 A.2.3 Heat pump control type
A.2.4 System design data
A.2.5 Localization
A.2.6 Control of priority
64 A.3 Operating conditions
A.3.1 Input for method A and method B
65 A.3.2 Additional input data for monthly and annual calculation
66 Annex B (informative)Default values
B.1 Heat pump description data
B.1.1 Heat pump type and use
B.1.1.1 Heat pump
B.1.1.2 Type of energy use (services)
B.1.1.3 Heat pump fuel
B.1.1.4 CE-marking
B.1.1.5 Information for back up system
67 B.1.2 Heat pump technical data
B.1.2.1 Heat pump output at full load (nominal)
68 B.1.2.2 Weighting factor for adaptation of the COP to the operating conditions
B.1.2.3 Weighting factor for adaptation of the thermal capacity to the operating conditions
69 B.1.2.4 Auxiliary
B.1.3 Operation at part load
70 B.2 System design data
B.2.1 Factors for emitters
B.2.2 Factors for energy recovery
B.2.3 Control type
71 B.2.4 System design data
B.2.5 Localization
B.2.6 Control of priority
72 B.3 – Operating conditions
B.3.1 Input for method A and method B
73 B.3.2 Additional input for method B
74 Annex C (informative)Tables of COP and energy at full load
C.1 General
C.2 Air – Water electrically driven heat pumps
75 C.3 COP and energy for exhaust air/ water electrically driven heat pump
76 C.4 COP and energy for water or brine/ water electrically driven heat pump
77 C.5 Air/water combustion-engine driven heat pumps
79 Annex D (normative)Adaptation of the COP to different conditions of temperature conditions
D.1 Principle
D.1.1 General
80 D.2 Application to electrically-driven heat pump
D.2.1 Carnot COP calculation
D.2.2 Correction factor for electrically driven heat pump
D.3 Application to thermally-driven heat pumps
D.3.1 Calculation of the COP Carnot
81 D.3.2 Correction factor for electrically driven heat pump
D.4 Correction of COP with adaptation to the operational temperature spread
85 D.5 Tests results form EN 14825
D.6 Input data for the calculation of COP and capacity at operating conditions
BS EN 15316-4-2:2017
$215.11