1、Thermal performance of curtain walling - Calculation of thermal transmittanceBS EN ISO 12631:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12631 July 2017 ICS 91.060.10; 91.120.10 Supersedes EN ISO 12631:
2、2012English Version Thermal performance of curtain walling - Calculation of thermal transmittance (ISO 12631:2017) Performance thermique des faades-rideaux - Calcul du coefficient de transmission thermique (ISO 12631:2017) Wrmetechnisches Verhalten von Vorhangfassaden - Berechnung des Wrmedurchgangs
3、koeffizienten (ISO 12631:2017) 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 giving this European Standard the status of a national standard without any alteration. Up-to-da
4、te 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 official versions (English, French, German). A version in any other language made by translation
5、 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 of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, For
6、mer Yugoslav Republic of Macedonia, France, 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 STANDARDIZATI
7、ON 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 worldwide for CEN national Members. Ref. No. EN ISO 12631:2017 ENational forewordThis British St
8、andard is the UK implementation of EN ISO 12631:2017. It is identical to ISO 12631:2017. It supersedes BS EN ISO 12631:2012, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/540, Energy performance of materials components and buildings.A list of organ
9、izations 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 Institution 2017 Published by BSI Standards Limited 201
10、7ISBN 978 0 580 87621 9ICS 91.060.10; 91.120.10Compliance 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 30 November 2017.Amendments/corrigenda issued since publicationDat
11、e Text affectedBRITISH STANDARDBS EN ISO 12631:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12631 July 2017 ICS 91.060.10; 91.120.10 Supersedes EN ISO 12631:2012English Version Thermal performance of curtain walling - Calculation of thermal transmittance (ISO 12631:2017) Performance
12、thermique des faades-rideaux - Calcul du coefficient de transmission thermique (ISO 12631:2017) Wrmetechnisches Verhalten von Vorhangfassaden - Berechnung des Wrmedurchgangskoeffizienten (ISO 12631:2017) This European Standard was approved by CEN on 27 February 2017. CEN members are bound to comply
13、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 references concerning such national standards may be obtained on application to the CEN-CENELEC Ma
14、nagement 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 member into its own language and notified to the CEN-CENELEC Management Centre has the same
15、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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, M
16、alta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, 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 Brusse
17、ls 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12631:2017 EBS EN ISO 12631:2017EN ISO 12631:2017 (E) 3 European foreword This document (EN ISO 12631:2017) has been prepared by Technical Committee CEN/TC 89 “Thermal per
18、formance of buildings and building components”, the secretariat of which is held by SIS, in collaboration with Technical Committee ISO/TC 163 “Thermal performance and energy use in the built environment“. This European Standard shall be given the status of a national standard, either by publication
19、of an identical text or by endorsement, at 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 respo
20、nsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This document is part of the set of standards on the energy performance of buildings (the set of EPB standards) and h
21、as been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association (Mandate M/480, see reference EF1 below), and supports essential requirements of EU Directive 2010/31/EC on the energy performance of buildings (EPBD, EF2). In case this standard is used
22、in the context of national or regional legal requirements, mandatory choices may be given at national or regional level for such specific applications, in particular for the application within the context of EU Directives transposed into national legal requirements. Further target groups are users o
23、f the voluntary common European Union certification scheme for the energy performance of non-residential buildings (EPBD art.11.9) and any other regional (e.g. Pan European) parties wanting to motivate their assumptions by classifying the building energy performance for a dedicated building stock. T
24、his document supersedes EN ISO 12631:2012. 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
25、Yugoslav Republic of Macedonia, France, Germany, 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. References: EF1 Mandate M480, Mandat
26、e to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a methodology calculating the integrated energy performance of buildings and promoting the energy efficiency of buildings, in accordance with the terms set in the recast of the Directive on the energy performance of buildin
27、gs (2010/31/EU) of 14th December 2010 EF2 EPBD, Recast of the Directive on the energy performance of buildings (2010/31/EU) of 14thDecember 2010 BS EN ISO 12631:2017EN ISO 12631:2017 (E) 4 Endorsement notice The text of ISO 12631:2017 has been approved by CEN as EN ISO 12631:2017 without any modific
28、ation. BS EN ISO 12631:2017This page deliberately left blank ISO 12631:2017(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 24 Symbols and subscripts . 34.1 Symbols . 34.2 Subscripts 34.3 Superscripts . 35 Description of the methods . 35.1 Output of the method
29、 35.2 General description . 45.3 Geometrical characteristics . 45.3.1 Main principles 45.3.2 Internal depth . 65.3.3 Boundaries of curtain wall structures . 75.3.4 Cut-off planes and partitioning of thermal zones.106 Methodologies for the calculation of curtain wall transmittance 107 Single assessme
30、nt method 127.1 Output data . 127.2 Calculation time intervals . 127.3 Input data . 127.3.1 Geometrical characteristics . 127.3.2 Thermal characteristics 167.4 Calculation procedure 187.4.1 Applicable time interval . 187.4.2 Calculation of thermal transmittance .188 Component assessment method .198.
31、1 Output data . 198.2 Calculation time intervals . 198.3 Input data . 198.3.1 Geometrical characteristics . 198.3.2 Thermal characteristics 238.4 Calculation procedure 268.4.1 Applicable time interval . 268.4.2 Calculation of thermal transmittance .269 Report .279.1 Contents of report . 279.2 Drawin
32、gs . 289.2.1 Section drawings .289.2.2 Overview drawing of the whole curtain wall element .289.3 Values used in the calculation . 289.4 Presentation of results 28Annex A (normative) Input and method selection data sheet Template 29Annex B (informative) Input and method selection data sheet default c
33、hoices .31Annex C (normative) Regional references in line with ISO Global Relevance Policy 33Annex D (normative) Linear thermal transmittance of junctions 34 ISO 2017 All rights reserved iiiContents PageISO 12631:2017(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definiti
34、ons . 24 Symbols and subscripts . 34.1 Symbols . 34.2 Subscripts 34.3 Superscripts . 35 Description of the methods . 35.1 Output of the method 35.2 General description . 45.3 Geometrical characteristics . 45.3.1 Main principles 45.3.2 Internal depth . 65.3.3 Boundaries of curtain wall structures . 7
35、5.3.4 Cut-off planes and partitioning of thermal zones.106 Methodologies for the calculation of curtain wall transmittance 107 Single assessment method 127.1 Output data . 127.2 Calculation time intervals . 127.3 Input data . 127.3.1 Geometrical characteristics . 127.3.2 Thermal characteristics 167.
36、4 Calculation procedure 187.4.1 Applicable time interval . 187.4.2 Calculation of thermal transmittance .188 Component assessment method .198.1 Output data . 198.2 Calculation time intervals . 198.3 Input data . 198.3.1 Geometrical characteristics . 198.3.2 Thermal characteristics 238.4 Calculation
37、procedure 268.4.1 Applicable time interval . 268.4.2 Calculation of thermal transmittance .269 Report .279.1 Contents of report . 279.2 Drawings . 289.2.1 Section drawings .289.2.2 Overview drawing of the whole curtain wall element .289.3 Values used in the calculation . 289.4 Presentation of result
38、s 28Annex A (normative) Input and method selection data sheet Template 29Annex B (informative) Input and method selection data sheet default choices .31Annex C (normative) Regional references in line with ISO Global Relevance Policy 33Annex D (normative) Linear thermal transmittance of junctions 34
39、ISO 2017 All rights reserved iiiContents PageBS EN ISO 12631:2017ISO 12631:2017(E)Annex E (normative) A method for calculating the thermal effect of screws using a 2D numerical method and the procedures specified in ISO 10077-2 .41Annex F (normative) Ventilated and unventilated air spaces .44Bibliog
40、raphy .47iv ISO 2017 All rights reservedBS EN ISO 12631:2017ISO 12631:2017(E)Annex E (normative) A method for calculating the thermal effect of screws using a 2D numerical method and the procedures specified in ISO 10077-2 .41Annex F (normative) Ventilated and unventilated air spaces .44Bibliography
41、 .47iv ISO 2017 All rights reserved ISO 12631:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Ea
42、ch member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the Internatio
43、nal Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different
44、 types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www .iso .org/ directivesAttention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be
45、 held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www .iso .org/ patentsAny trade name used in this document is informatio
46、n given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) p
47、rinciples in the Technical Barriers to Trade (TBT), see the following URL: h t t p :/ www .iso .org/ iso/ foreword .htmlISO 12631 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 89, Thermal performance of buildings and building components, in collaboration
48、 with ISO Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 2, Calculation methods, in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement).This second edition cancels and replaces the first edition (
49、ISO 12631:2012) which has been technically revised. The necessary editorial revisions were made to comply with the requirements for the EPB set of standards.In addition, the following clauses and subclauses of the previous version have been technically revised: Annex G and Annex H were deleted and moved to the technical report; Tabulated values in Annex D were checked and revised where necessary. ISO 2017 All rights reserved vBS EN ISO 12631:2017ISO 12631:2017(E)IntroductionThis document is part of a series of standards aiming at in
