EN 12831-2003 en Heating systems in buildings - Method for calculation of the design heat load《建筑物供暖系统 设计热负荷的计算方法》.pdf
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1、BS EN12831:2003IncorporatingCorrigendumJanuary 2009Heating systems inbuildings M ethod forcalculation of thedesign heat loadICS 91.140.10BS EN 12831:2003Incorporating corrigenda January 2009 and September 2013National forewordThis British Standard is the UK implementation of EN 12831:2003.Together w
2、ith BS EN 12828:2003 and BS EN 14336:2004, it supersedesBS 5449:1990, which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee RHE/24, Central heating installations.Alist of organizations represented on this committee can be obtained onrequest to its secretary.I
3、nformative guidance on the use of BS EN 12831:2003 in the UK forforced circulation hot water central heating systems, which may includethose for domestic hot water, with heat requirementsuptoatotal of45 kW is given in National Annex NA (informative).Thispublicationdoesnotpurporttoincludeallthenecess
4、aryprovisionsofacontract. Users are responsible for its correct application.Compliance withaBritish Standard cannot confer immunityfrom legal obligations.Amendments issuedsincepublicationDate Comments31 January 2009 Revision of National Annex NA (informative).Update to supersession details and addit
5、ionalinformation added to National foreword.This British Standardwas published underthe authority of theStandards Policy andStrategy Committee on22 August 2008#BSI 2009ISBN 978 0580 60475 1BS EN 12831:2003BS EN 12831:2003ISBN 978 0 580 84107 1Amendments/corrigenda issued since publicationDate Commen
6、ts31 January 2009 Revision of National Annex NA (informative). Update to supersession details and additional information added to National foreword.30 September 2013 Revision of National Annex NA (informative)This British Standard was published under the authority of the Standards Policy and Strateg
7、y Committee on 22 August 2008 The British Standards Institution 2013. Published by BSI Standards Limited 2013EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12831March 2003ICS 91.140.10English versionHeating systems in buildings - Method for calculation of thedesign heat loadSystmes de chauffage d
8、ans les btiments - Mthode decalcul des dperditions calorifiques de baseHeizungsanlagen in Gebuden - Verfahren zur Berechnungder Norm-HeizlastThis European Standard was approved by CEN on 6 July 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditi
9、ons for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three officia
10、l versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium,
11、 Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovak Republic, Spain, Sweden, Switzerland andUnited Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORM
12、UNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2003 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12831:2003 EEN 12831:2003 (E)2ContentspageFOREWORD .4INTRODUCTION.51 - SCOPE.52 - NORMATIVE REFERENCES.63 - TERMS, DEFINIT
13、IONS AND SYMBOLS73.1 - TERMS AND DEFINITIONS.73.2 - SYMBOLS AND UNITS.94 - PRINCIPLE OF THE CALCULATION METHOD115 - GENERAL CONSIDERATIONS.125.1 - CALCULATION PROCEDURE FOR A HEATED SPACE125.2 - CALCULATION PROCEDURE FOR A BUILDING ENTITY OR A BUILDING125.3 - CALCULATION PROCEDURE FOR THE SIMPLIFIED
14、 METHOD126 - DATA REQUIRED146.1 - CLIMATIC DATA.146.2 - INTERNAL DESIGN TEMPERATURE146.3 - BUILDING DATA.147 TOTAL DESIGN HEAT LOSS FOR A HEATED SPACE - BASIC CASES167.1 - DESIGN TRANSMISSION HEAT LOSS.167.1.1 - Heat losses directly to the exterior - heat loss coefficient HT,ie167.1.2 - Heat losses
15、through unheated space - heat loss coefficient HT,iue177.1.3 - Heat losses through the ground - heat loss coefficient HT,ig187.1.4 - Heat losses to or from spaces heated at a different temperature - heat loss coefficient HT,ij247.2 - DESIGN VENTILATION HEAT LOSS.257.2.1 - Hygiene - air flow rateimin
16、,V277.2.2 - Infiltration through building envelope - air flow rate iinf,V277.2.3 - Air flow rates due to ventilation systems .287.3 - INTERMITTENTLY HEATED SPACES.298 - DESIGN HEAT LOAD308.1 - DESIGN HEAT LOAD FOR A HEATED SPACE308.2 - DESIGN HEAT LOAD FOR A BUILDING ENTITY OR A BUILDING309 - SIMPLI
17、FIED CALCULATION METHOD.319.1 - DESIGN HEAT LOSS FOR A HEATED SPACE.329.1.1 - Total design heat loss329.1.2 - Design transmission heat loss329.1.3 - Design ventilation heat loss.329.2 DESIGN HEAT LOAD FOR A HEATED SPACE.339.2.1 - Total design heat load .339.2.2 - Intermittently heated spaces339.3 -
18、TOTAL DESIGN HEAT LOAD FOR A BUILDING ENTITY OR A BUILDING.34ANNEX A (INFORMATIVE) BASIC PARAMETERS ON HUMAN COMFORT IN INTERIORBS EN 12831:2003 (E)EN 12831:2003 (E)EN 12831:2003 (E)3THERMAL ENVIRONMENTS - SIGNIFICANCE OF OPERATIVE TEMPERATURE IN HEAT LOADCALCULATIONS.35ANNEX B(INFORMATIVE) INSTRUCT
19、IONS FOR DESIGN HEAT LOSS CALCULATION FORSPECIAL CASES38B.1 CEILING HEIGHT AND LARGE ENCLOSURE38B.2 BUILDINGS WHERE AIR TEMPERATURE AND MEAN RADIANT TEMPERATURE DIFFER SIGNIFICANTLY39ANNEX C (INFORMATIVE) EXAMPLE OF A DESIGN HEAT LOAD CALCULATION.41C.1 - GENERAL DESCRIPTION OF THE CALCULATION EXAMPL
20、E.41C.1.1 - Sample building description41C.1.2 - Plans of the building.41C.1.3 - Calculations performed.41C.2 - PLANS OF THE BUILDING42C.3 - SAMPLE CALCULATION50C.3.1 - General data .50C.3.2 - Data on materials51C.3.3 - Data on building elements 52C.3.4 - Data on thermal bridges.54C.3.5 - Room trans
21、mission heat losses56C.3.6 - Room ventilation heat losses.58C.3.7 - Heating-up capacity61C.3.8 - Total heat load62C.3.9 - Room heat load with the simplified method64C.3.10 - Total heat load with the simplified method.65ANNEX D (NORMATIVE) DEFAULT VALUES FOR THE CALCULATIONS IN CLAUSES 6 TO 9.66D.1 -
22、 CLIMATIC DATA(SEE 6.1)66D.2 - INTERNAL DESIGN TEMPERATURE(SEE 6.2)66D.3 - BUILDING DATA(SEE 6.3)67D.4 - DESIGN TRANSMISSION HEAT LOSS67D.4.1 - Heat losses directly to the exterior - HT,ie(see 7.1.1)67D.4.2 - Heat losses through unheated space - HT,iue(see 7.1.2)69D.4.3 - Heat losses through the gro
23、und - HT,ig(see 7.1.3)70D.4.4 - Heat losses to or from spaces heated at a different temperature - HT,ij(see 7.1.4).70D.5 - DESIGN VENTILATION HEAT LOSS - HV,I.70D.5.1 - Minimum external air exchange rate - nmin(see 7.2.1 and 9.1.3).70D.5.2 - Air exchange rate - n50(see 7.2.2)71D.5.3 - Shielding coef
24、ficient - e (see 7.2.2).71D.5.4 - Height correction factor - (see 7.2.2).72D.6 - INTERMITTENTLY HEATED SPACES(SEE 7.3 AND 9.2.2).72D.7 - SIMPLIFIED CALCULATION METHOD (SEE 9).74D.7.1 - Restrictions of use.74D.7.2 - Temperature correction factor - fk(see 9.1.2).74D.7.3 - Temperature correction factor
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