EN 12831-1-2017 en Energy performance of buildings - Method for calculation of the design heat load - Part 1 Space heating load Module M3-3.pdf

1、Energy performance of buildings - Method for calculation of the design heat loadPart 1: Space heating load, Module M3-3BS EN 12831-1:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12831-1 July 2017 ICS 91.140.

2、10 Supersedes EN 12831:2003English Version Energy performance of buildings - Method for calculation of the design heat load - Part 1: Space heating load, Module M3-3 Performance nergtique des btiments - Mthode de calcul de la charge thermique nominale - Partie 1 : Charge de chauffage des locaux, mod

3、ule M3-3 Energetische Bewertung von Gebuden - Verfahren zur Berechnung der Norm-Heizlast - Teil 1: Raumheizlast, Modul M3-3 This European Standard was approved by CEN on 27 February 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giv

4、ing this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three off

5、icial versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies o

6、f Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia

7、, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved wor

8、ldwide for CEN national Members. Ref. No. EN 12831-1:2017 ENational forewordThis British Standard is the UK implementation of EN 12831-1:2017. It supersedes BS EN 12831:2003 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee RHE/24, Heating systems and wa

9、ter based cooling systems in buildings.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards I

10、nstitution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 87448 2ICS 91.140.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2017.Amendments

11、/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 12831-1:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12831-1 July 2017 ICS 91.140.10 Supersedes EN 12831:2003English Version Energy performance of buildings - Method for calculation of the design heat load - Part

12、 1: Space heating load, Module M3-3 Performance nergtique des btiments - Mthode de calcul de la charge thermique nominale - Partie 1 : Charge de chauffage des locaux, module M3-3 Energetische Bewertung von Gebuden - Verfahren zur Berechnung der Norm-Heizlast - Teil 1: Raumheizlast, Modul M3-3 This E

13、uropean Standard was approved by CEN on 27 February 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical referenc

14、es concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN me

15、mber into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, F

16、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUR

17、OPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12831-1:2017 EBS EN 12831-1:2017EN 12831-1:2017 (E) 2 Contents Page European foreword

18、 . 5 Introduction 6 1 Scope 8 2 Normative references . 12 3 Terms and definitions 12 4 Symbols and abbreviations 15 4.1 Symbols 15 4.2 Subscripts 16 5 Description of the methods 19 6 Standard method Heat load of rooms, building entities and buildings . 20 6.1 Output data . 20 6.2 Input data 21 6.3 C

19、alculation procedure 27 6.3.1 Design heat load . 27 6.3.2 Design transmission heat losses of a heated space (i) 29 6.3.3 Design ventilation heat loss . 33 6.3.4 Additional heating-up power in intermittently heated spaces . 41 6.3.5 Time constant 42 6.3.6 Heat transfer coefficients without temperatur

20、e adjustment . 43 6.3.7 External design temperature (climatic data) 44 6.3.8 Influence of the heat emission system in high rooms (ceiling height 4 m) . 46 7 Simplified method for the calculation of the design heat load of a heated space (single rooms) 48 7.1 Output data . 48 7.2 Input data 48 7.3 Ca

21、lculation procedure 49 7.3.1 Design heat load of a heated space 49 7.3.2 Design transmission heat loss of a heated space 50 7.3.3 Design ventilation heat loss of a heated space 50 8 Simplified method for the calculation of the building design heat load 51 8.1 Output data . 51 8.2 Input data 51 8.3 C

22、alculation procedure 52 8.3.1 Building design heat load 52 8.3.2 Building design transmission heat loss 53 8.3.3 Design ventilation heat loss of a building . 53 9 Compliance check. 54 9.1 General . 54 9.2 Dimensioning of heat emission systems 54 9.3 Dimensioning of heat generators . 54 Annex A (norm

23、ative) Input data, structure for default values . 55 A.1 General . 55 A.2 Input data for the standard method (6) . 55 BS EN 12831-1:2017EN 12831-1:2017 (E) 3 A.2.1 Consideration of thermal bridges 55 A.2.2 Correction of U-values for the influence of building element properties and meteorological con

24、ditions 55 A.2.3 Heat loss through the ground 55 A.2.4 Temperature adjustment for heat loss to unheated spaces . 56 A.2.5 Internal temperatures of adjacent building entities . 56 A.2.6 Influence of the heat emission system in high rooms . 56 A.2.7 Specific thermal storage capacity ceff57 A.2.8 Speci

25、fic properties of air . 57 A.2.9 Volume flow ratio between room (i) and zone (z) . 58 A.2.10 Air tightness . 58 A.2.11 Minimum air change rate 58 A.2.12 Coefficient for the volume flow ratio fqv,z. 59 A.2.13 Estimation of design data of external ATDs 59 A.2.14 Pressure exponent for leakages . 59 A.2

26、.15 Adjustment factor for the orientation of the zone (orientation factor) . 59 A.2.16 Adjustment factor for the number of exposed facades 60 A.2.17 Air volume flow through large openings . 60 A.2.18 Additional heating-up power in intermittently heated spaces hu60 A.2.19 Heat gains gain60 A.3 Input

27、data for the simplified methods (7, 8) 60 A.3.1 Ratio between external and internal surface areas 60 A.3.2 Thermal bridges . 61 A.3.3 Temperature correction factor fx. 61 A.3.4 Air change rate 61 A.4 Input data for the standard method and the simplified methods 61 A.4.1 Climatic data 61 A.4.2 Intern

28、al design temperature . 64 A.4.3 Simplified determination of U-Values 64 Annex B (informative) Input data, default values . 65 B.1 General . 65 B.2 Input data for the standard method (6) . 65 B.2.1 Consideration of thermal bridges 65 B.2.2 Correction of U-values for the influence of building element

29、 properties and meteorological conditions 65 B.2.3 Heat loss through the ground 65 B.2.4 Temperature adjustment for heat loss to unheated spaces . 66 B.2.5 Internal temperatures of adjacent building entities . 66 B.2.6 Influence of the heat emission system in high rooms . 66 B.2.7 Specific thermal s

30、torage capacity ceff67 B.2.8 Specific properties of air . 68 B.2.9 Volume flow ratio between room (i) and zone (z) . 68 B.2.10 Air tightness . 68 B.2.11 Coefficient for the volume flow ratio fqv,z. 69 B.2.12 Estimation of design data of external ATDs 70 B.2.13 Pressure exponent for leakages . 71 B.2

31、.14 Adjustment factor for the orientation of the zone (orientation factor) . 71 B.2.15 Adjustment factor for the number of exposed facades 71 B.2.16 Air volume flow through large openings . 71 B.2.17 Additional heating-up power in intermittently heated spaces hu 71 B.2.18 Heat gains gain. 71 B.3 Inp

32、ut data for the simplified methods (7, 8) 71 BS EN 12831-1:2017EN 12831-1:2017 (E) 4 B.3.1 Ratio between external and internal surface areas 71 B.3.2 Thermal bridges . 72 B.3.3 Temperature correction factor fx. 72 B.3.4 Air change rate 72 B.4 Input data for the standard method and the simplified met

33、hods 72 B.4.1 Climatic data 72 B.4.2 Internal design temperature . 73 B.4.3 Simplified determination of U-Values 74 Annex C (informative) Detailed consideration of thermal bridges . 77 Annex D (informative) Internal temperatures uof adjacent building entities or adjacent unheated spaces within the s

34、ame building . 78 Annex E (informative) Equivalent thermal transmittance of building elements against ground 81 Annex F (informative) Estimation of heating-up power in intermittently heated spaces (6.3.4) 84 F.1 General . 84 F.2 Determination of the specific heating-up power hu,ibased on the time of

35、 disuse 86 F.3 Determination of the specific heating-up power hu,ibased on the internal temperature drop during setback 87 Annex G (informative) External air volume flow through large openings . 89 Bibliography . 94 BS EN 12831-1:2017EN 12831-1:2017 (E) 5 European foreword This document (EN 12831-1:

36、2017) has been prepared by Technical Committee CEN/TC 228 “Heating systems and water based cooling systems in buildings”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at

37、 the latest by January 2018, and conflicting national standards shall be withdrawn at the latest by January 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such pa

38、tent rights. This document supersedes EN 12831:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. EN 12831, Energy performance of buildings Method for the calculation of the design heat load, is composed with the fol

39、lowing parts: Part 1: Space heating load, Module M3-3; Part 2: Explanation and justification of EN 12831-1, Module M3-3 CEN/TR; Part 3: Domestic hot water systems heat load and characterisation of needs, Module M8-2, M8-3; Part 4: Explanation and justification of EN 12831-3, Module M8-2, M8-3 CEN/TR

40、. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, G

41、ermany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12831-1:2017EN 12831-1:2017 (E) 6 Introduction This European Standard i

42、s part of a series of standards aiming at international harmonization of the methodology for the assessment of the energy performance of buildings, called “set of EPB standards”. All EPB standards follow specific rules to ensure overall consistency, unambiguity and transparency. All EPB standards pr

43、ovide a certain flexibility with regard to the methods, the required input data and references to other EPB standards, by the introduction of a normative template in Annex A and Annex B with informative default choices. For the correct use of this standard a normative template is given in Annex A to

44、 specify these choices. Informative default choices are provided in Annex B. The EPB set of standards deals with energy performance calculation and other related aspects (like system sizing) to provide the building services considered in the EPBD. The subjects covered by CEN/TC 228 are the following

45、: design of heating systems (water based, electrical, etc.); installation of heating systems; commissioning of heating systems; instructions for operation, maintenance and use of heating systems; methods for calculation of the design heat loss and heat loads; methods for calculation of the energy pe

46、rformance of heating systems. Heating systems also include the effect of attached systems such as hot water production systems. All these standards are systems standards, i.e. they are based on requirements addressed to the system as a whole and not dealing with requirements to the products within t

47、he system. Where possible, reference is made to other European or International Standards, a. o. product standards. However, use of products complying with relevant product standards is no guarantee of compliance with the system requirements. The requirements are mainly expressed as functional requi

48、rements, i.e. requirements dealing with the function of the system and not specifying shape, material, dimensions or the like. The guidelines describe ways to meet the requirements, but other ways to fulfil the functional requirements might be used if fulfilment can be proved. Heating systems differ

49、 among the member countries due to climate, traditions and national regulations. In some cases requirements are given as classes so national or individual needs may be accommodated. In cases where the standards contradict with national regulations, the latter should be followed. Use by or for regulators: In case the standard is used in the context of national or regional legal requirements, mandatory choices may be given at national or regional level for such specific applications. These choices (either the informative default c