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BS EN ISO 52016-1:2017

$215.11

Energy performance of buildings. Energy needs for heating and cooling, internal temperatures and sensible and latent heat loads – Calculation procedures

Published By Publication Date Number of Pages
BSI 2017 218
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This document specifies calculation methods for the assessment of:

  1. the (sensible) energy need for heating and cooling, based on hourly or monthly calculations;

  2. the latent energy need for (de-)humidification, based on hourly or monthly calculations;

  3. the internal temperature, based on hourly calculations;

  4. the sensible heating and cooling load, based on hourly calculations;

  5. the moisture and latent heat load for (de-)humidification, based on hourly calculations;

  6. the design sensible heating or cooling load and design latent heat load using an hourly calculation interval;

  7. the conditions of the supply air to provide the necessary humidification and dehumidification.

The calculation methods can be used for residential or non-residential buildings, or a part of it, referred to as “the building” or the “assessed object”.

This document also contains specifications for the assessment of thermal zones in the building or in the part of a building. The calculations are performed per thermal zone. In the calculations, the thermal zones can be assumed to be thermally coupled or not.

The calculation methods have been developed for the calculation of the basic energy loads and needs, without interaction with specific technical building systems, and for the calculation of the system specific energy loads and needs, including the interaction with specific systems. The hourly calculation procedures can also be used as basis for calculations with more extensive system control options.

This document is applicable to buildings at the design stage, to new buildings after construction and to existing buildings in the use phase.

NOTE Table 1 in the Introduction shows the relative position of this document within the set of EPB standards in the context of the modular structure as set out in ISO 52000-1.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
5 Endorsement notice
9 Foreword
10 Introduction
13 1 Scope
2 Normative references
14 3 Terms and definitions
3.1 Building
18 3.2 Indoor and outdoor conditions
20 3.3 Technical building systems
21 3.4 Energy
23 3.5 Energy performance
24 3.6 Energy calculation
26 4 Symbols, subscripts and abbreviations
4.1 Symbols
27 4.2 Subscripts
29 4.3 Abbreviations
5 Description of the methods
5.1 Output of the method
5.2 General description of the method
5.2.1 Hourly calculation procedures
30 5.2.2 Monthly calculation procedures
5.2.3 Input data and assumptions for hourly and monthly method
31 5.2.4 Choices between methods
6 Calculation method
6.1 Output data
6.1.1 General data on the assessed object and application
32 6.1.2 Calculated data
37 6.2 Calculation time intervals and calculation period
6.3 Input data
6.3.1 Source of data; general
6.3.2 General data on the assessed object and application
38 6.3.3 Geometrical characteristics
6.3.4 Thermophysical parameters of the building and building elements
44 6.3.5 Operating and boundary conditions
52 6.3.6 Constants and physical data
53 6.3.7 Input data from Annex A (Annex B)
6.4 Zoning of the assessed object
6.4.1 General
6.4.2 Thermal zoning procedures
58 6.4.3 Size of the thermal zones and thermal envelope
6.4.4 Heat exchange between thermal zones and service areas
6.4.5 Adjacent thermally unconditioned zones
62 6.4.6 Residential buildings or building units, adjustment for spatial average temperature
63 6.4.7 Thermally coupled or uncoupled zones
6.5 Hourly calculation procedures
6.5.1 Principle
64 6.5.2 Applicable time interval and calculation period
6.5.3 Assumptions and specific conditions
66 6.5.4 Calculation procedure
72 6.5.5 Calculation of (sensible) heating and cooling loads and temperatures
78 6.5.6 Overall energy balance of a thermal zone
83 6.5.7 Type of construction dependent properties of the nodes
88 6.5.8 Thermal transmission properties
90 6.5.9 Temperature of adjacent thermally unconditioned zone
92 6.5.10 Ventilation heat transfer coefficient, supply temperature and moisture content
93 6.5.11 Thermal capacity of the internal environment of the thermal zone
6.5.12 Internal heat gains
95 6.5.13 Solar gains
96 6.5.14 Moisture content and latent heat load
101 6.5.15 Calculation of key monthly data from hourly output
104 6.6 Monthly calculation procedures
6.6.1 Principle
6.6.2 Applicable time interval and calculation period
105 6.6.3 Assumptions
6.6.4 Energy need for space heating and cooling
109 6.6.5 Heat transfer by transmission
111 6.6.6 Heat transfer by ventilation
114 6.6.7 Internal heat gains
116 6.6.8 Solar heat gains
119 6.6.9 Internal effective heat capacity of a zone
120 6.6.10 Utilization factors
122 6.6.11 Calculation temperature and intermittency modes
128 6.6.12 Overheating indicator
129 6.6.13 Length of the heating and cooling season for operation of season-length-dependent provisions
130 6.6.14 Humidification and dehumidification
131 7 Quality control
7.1 Calculation report
7.1.1 General
7.1.2 Energy need calculation
133 7.1.3 Internal temperature calculation
7.1.4 Design heating and cooling load calculation
134 7.2 Hourly method: verification cases
7.2.1 Scope and limitations
7.2.2 Verification procedure for the whole calculation method
142 7.2.3 Description of the verification test cases
7.2.4 Results of the verification test cases
146 7.3 Hourly method: validation in case of specific alternative calculation procedures
8 Compliance check
147 Annex A (normative) Input and method selection data sheet — Template
163 Annex B (informative) Input and method selection data sheet — Default choices
184 Annex C (normative) Regional references in line with ISO Global Relevance Policy
185 Annex D (normative) Multi-zone calculation with thermal coupling between zones
188 Annex E (normative) Heat transfer and solar heat gains of windows and special elements
195 Annex F (normative) Calculation of solar shading reduction factors
210 Annex G (normative) Dynamic transparent building elements
216 Bibliography
BS EN ISO 52016-1:2017
$215.11