ISO INTERNATIONAL STANDARD 52016-1 First edition 2017-06 Energy performance of buildings - Energy needs for heating and cooling, internal temperatures and sensible and latent heat loads - Part 1: Calculation procedures Performance énergétiques des batiments - Besoins d'énergie pour le chauffage et le refroidissement, les températures intérieures et les chaleurs sensible et latente - Partie 1: Méthodes de calcul Reference number IS0 52016-1:2017(E) International Organization for Standardization @ IS0 2017 ZHEJIANG INST OF STANDARDIZATION C1 5956617 ed without license from IHS IS0 52016-1:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Licensee-ZHEJIANG INST OF STANDARDIZAISQ 017 - All rights reserVed Not for Resale, 2017/9/12 02:39:16 networking permited without license from IHS IS0 52016-1:2017(E) Contents Page Foreword ..V Introduction. ..vi 1 Scope. 2 Normative references 3 Terms and definitions 3.1 Building. ..2 3.2 Indoor and outdoor conditions 3.3 Technical building systems. ..8 3.4 Energy. 3.5 Energy performance. ..11 3.6 Energy calculation... ..12 4 Symbols, subscripts and abbreviations ..14 4.1 Symbols. ..14 4.2 Subscripts. ..15 4.3 Abbreviations. ..17 5 Description of the methods ..17 5.1 Output of the method ..17 5.2 General description of the method ..17 5.2.1 Hourly calculation procedures .17 5.2.2 Monthly calculation procedures 5.2.3 Input data and assumptions for hourly and monthly method ..18 5.2.4 Choices between methods. ..19 6 Calculation method ..19 6.1 Output data ..19 6.1.1 General data on the assessed object and application 19 6.1.2 Calculated data 20 6.2 Calculation time intervals and calculation period 25 6.3 Inputdata .25 6.3.1 Source of data; general .25 6.3.2 General data on the assessed object and application 25 6.3.3 Geometrical characteristics 26 6.3.4 Thermophysical parameters of the building and building elements. 26 6.3.5 Operating and boundary conditions. 32 6.3.6 Constants and physical data.. 6.3.7 Input data from Annex A (Annex B) .41 6.4 Zoningoftheassessedobject. .41 6.4.1 General. .41 6.4.2 Thermal zoning procedures ..41 6.4.3 Size of the thermal zones and thermal envelope. ..46 6.4.4 Heat exchange between thermal zones and service areas .46 6.4.5 Adjacent thermally unconditioned zones. ..46 6.4.6 Residential buildings or building units, adjustment for spatial average temperature. 50 6.4.7 Thermally coupled or uncoupled zones 51 6.5 Hourly calculation procedures. 51 6.5.1 Principle 51 6.5.2 Applicable time interval and calculation period 52 6.5.3 Assumptions and specific conditions. .52 6.5.4 Calculation procedure .54 6.5.5 Calculation of (sensible) heating and cooling loads and temperatures .60 6.5.6 Overall energy balance of a thermal zone .66 6.5.7 Type of construction dependent properties of the nodes ..71 ii Licensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS under license with ISC ted without license from IHS Not for Resale, 2017/9/12 02:39:16 No reproduction or networking permi IS0 52016-1:2017(E) 6.5.8 Thermal transmission properties .76 6.5.9 Temperature of adjacent thermally unconditioned zone 78 6.5.10 Ventilation heat transfer coefficient, supply temperature and moisture content 80 6.5.11 Thermal capacity of the internal environment of the thermal zone 81 6.5.12 Internal heat gains. 81 6.5.13 Solar gains. .83 6.5.14 Moisture content and latent heat load 84 6.5.15 Calculation of key monthly data fro