EN 1264-2-2008 en Water based surface embedded heating and cooling systems - Part 2 Floor heating Prove methods for the determination of the thermal output using calculation and te.pdf

1、BSEN1264-2:2008ICS91.140.10NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBRITISHSTANDARDWaterbasedsurfaceembeddedheatingandcoolingsystemsPart2:Floorheating:ProvemethodsforthedeterminationofthethermaloutputusingcalculationandtestmethodsBS EN1264-2:2008+A1:2012ThisBritishStandardwaspubli

2、shedundertheauthorityoftheStandardsPolicyandStrategyCommittee on31 May2009.BSI2009ISBN 9780580 57997 4Amendments/corrigenda issued sincepublicationDate CommentsBS EN 1264-2:2008National forewordThisBritishStandardistheUKimplementationof EN1264-2:2008.ItsupersedesBSEN1264-2:1998whichiswithdrawn.TheUK

3、participationinitspreparationwasentrustedtoTechnicalCommitteeRHE/6,Airorspaceheatersorcoolerswithoutcombustion.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrec

4、tapplication.Compliance withaBritish Standard cannotconfer immunityfrom legal obligations.BS EN 1264-2:2008+A1:2012ISBN 978 0 580 77212 2end ents/corrigenda issued since publicationDate Comments28 February 2013 Implementation of CEN amendment A1:2012This British Standard waspublished under the autho

5、rityof the Standards Policy andStrategy Committee on 31 May 2009. The British Standards Institution 2013.Published by BSI StandardsLimited 2013National forewordThis British Standard is the UK implementation of EN 1264-2:2008+A1:2012.It supersedes BS EN 1264-2:2008, which is withdrawn.The start and f

6、inish of text introduced or altered by amendment is indicatedin the text by tags. Tags indicating changes to CEN text carry the number ofthe CEN amendment. For example, text altered by CEN amendment A1 isindicat by .EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1264-2:2008+A1 November 2012 IC

7、S 91.140.10 Supersedes EN 1264-2:2008English Version Water based surface embedded heating and cooling systems - Part 2: Floor heating: Prove methods for the determination of the thermal output using calculation and test methods Systmes de surfaces chauffantes et rafrachissantes hydrauliques intgres

8、- Partie 2 : Chauffage par le sol: Mthodes de dmonstration pour la dtermination de lmission thermique utilisant des mthodes par le calcul et laide de mthodes dessai Raumflchenintegrierte Heiz- und Khlsysteme mit Wasserdurchstrmung - Teil 2: Fubodenheizung: Prfverfahren fr die Bestimmung der Wrmeleis

9、tung unter Benutzung von Berechnungsmethoden und experimentellen Methoden This European Standard was approved by CEN on 13 September 2008 and includes Amendment 1 approved by CEN on 1 October 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditio

10、ns 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 Management Centre or to any CEN member. This European Standard exists in

11、 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 status as the official versions. CEN members are the national standard

12、s 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, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Sloven

13、ia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for

14、 CEN national Members. Ref. No. EN 1264-2:2008+A1:2012: EEN 1264-2:2008+A1:2012 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Definitions and symbols .54 Thermal boundary conditions 55 Documents for testing .66 Calculation of the specific thermal output (characteris

15、tic curves and limit curves) 76.1 General approach (see 2, 4) .76.2 Systems with pipes installed inside the screed (type A and type C) .86.3 Systems with pipes installed below the screed or timber floor (type B) .96.4 Systems with surface elements (plane section systems, type D) . 116.5 Limits of th

16、e specific thermal output 116.6 Influence of pipe material, pipe wall thickness and pipe sheathing on the specific thermal output . 136.7 Heat conductivity of screed with inserts 147 Heat conductivity of the materials 148 Downward heat loss . 149 Test procedure for the determination of the thermal o

17、utput of systems that cannot be calculated in accordance with Clause 6 . 1510 Test procedure for the determination of the effective thermal resistance of carpets . 1811 Prove report. 1912 Prove system. 2012.1 General . 2012.2 Master samples . 2012.3 Verification of test equipments . 2112.4 Determina

18、tion of the values smand M,s(qN,M,s, qG,M,s(R;B=0,15), R,B,M,s) of primary master samples 2112.5 Verification of software 21Annex A (normative) Figures and tables . 23Annex B (informative) Test procedure for the determination of parameters for application in EN 15377-1:2008 Annex C 40Annex C (inform

19、ative) !Influence of the heat exchange coefficient inside the pipe on the specific thermal output“ . 43Bibliography . 44BS EN 1264-2:2008+A1:2012EN 1264-2:2008+A1:2012 (E)EN 1264-2:2008+A1:2012 (E) 3 Foreword This document (EN 1264-2:2008+A1:2012) has been prepared by Technical Committee CEN/TC 130

20、“Space heating appliances without integral heat sources”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2013, and conflicting national standards shal

21、l be withdrawn at the latest by May 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1 approved

22、by CEN on 1 October 2012. This document !supersedes EN 1264-2:2008“. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. This European Standard, Water based surface embedded heating and cooling systems, consists of the following parts: Part 1: Defini

23、tions and symbols; Part 2: Floor heating: Prove methods for the determination of the thermal output using calculation and test methods; Part 3: Dimensioning; Part 4: Installation; Part 5: Heating and cooling surfaces embedded in floors, ceilings and walls Determination of the thermal output. Accordi

24、ng to the CEN/CENELEC Internal Regulations, the national standards organisations 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, Germany, G

25、reece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1264-2:2008+A1:2012EN 1264-2:2008+A1:2012 (E)EN 1264-2:2008+A1:2012 (E) 4 Introduction T

26、his European Standard is based on the realisation that in the field of commercial trade, the thermal output of heating and cooling systems represents the basis of rating. In order to be able to evaluate and compare different heating and/or cooling systems, it is, therefore, necessary to refer to val

27、ues determined using one single, unambiguously defined method. The basis for doing so are the prove methods for the determination of the thermal output of floor heating systems specified in Part 2 of this European Standard. In analogy to the European Standard EN 442-2 (Radiators and convectors Part

28、2: Test methods and rating), these prove methods provide characteristic partial load curves under defined boundary conditions as well as the characteristic output of the system represented by the standard thermal output together with the associated standard temperature difference between the heating

29、 medium and the room temperature. BS EN 1264-2:2008+A1:2012EN 1264-2:2008+A1:2012 (E)EN 1264-2:2008+A1:2012 (E) 5 1 Scope This European Standard specifies the boundary conditions and the prove methods for the determination of the thermal output of hot water floor heating systems as a function of the

30、 temperature difference between the heating medium and the room temperature. This standard shall be applied to commercial trade and practical engineering if proved and certifiable values of the thermal output shall be used. This European Standard applies to heating and cooling systems embedded into

31、the enclosure surfaces of the room to be heated or to be cooled. This Part of this European Standard applies to hot water floor heating systems. Applying of Part 5 of this European Standard requires the prior use of this Part of this European Standard. Part 5 of this European Standard deals with the

32、 conversion of the thermal output of floor heating systems determined in Part 2 into the thermal output of heating surfaces embedded in walls and ceilings as well as into the thermal output of cooling surfaces embedded in floors, walls and ceilings. The thermal output is proved by a calculation meth

33、od (Clause 6) and by a test method (Clause 9). The calculation method is applicable to systems corresponding to the definitions in EN 1264-1 (type A, type B, type C, type D). For systems not corresponding to these definitions, the test method shall be used. The calculation method and the test method

34、 are consistent with each other and provide correlating and adequate prove results. The prove results, expressed depending on further parameters, are the standard specific thermal output and the associated standard temperature difference between the heating medium and the room temperature as well as

35、 fields of characteristic curves showing the relationship between the specific thermal output and the temperature difference between the heating medium and the room. 2 Normative references !The following documents, in whole or in part, are normatively referenced in this document and are indispensabl

36、e for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1264-1:2011, Water based surface embedded heating and cooling systems Part 1: Definitions and symbols EN 1264-3:20

37、09, Water based surface embedded heating and cooling systems Part 3: Dimensioning“ 3 Definitions and symbols For the purposes of this document, the terms and definitions given in !EN 1264-1:2011“ apply. 4 Thermal boundary conditions A floor heating surface with a given average surface temperature ex

38、changes the same thermal output in any room with the same indoor room temperature (standard indoor room temperature i). It is, therefore, possible to give a basic characteristic curve of the relationship between specific thermal output and average surface temperature that is independent of the heati

39、ng system and applicable to all floor heating surfaces (including those having peripheral areas with greater heat emissions) (see Figure A.1). In contrast, every floor heating system has its own maximum permissible specific thermal output, the limit specific thermal output, qG. This output is calcul

40、ated for an ambient (standard) indoor room temperature BS EN 1264-2:2008+A1:2012EN 1264-2:2008+A1:2012 (E)EN 1264-2:2008+A1:2012 (E) 6 i= 20 C. The other condition is the maximum surface temperature F, max= 29 C1)at temperature drop between supply and return of the heating medium = 0 K. The maximum

41、specific thermal output for the peripheral area will be achieved at a maximum surface temperature F, max= 35 C2)and = 0 K. For the calculation and for the test procedure, the centre of the heating surface is used as the reference point for F, max, regardless of system type. The average surface tempe

42、rature F, m, determining the specific thermal output (see basic characteristic curve) is linked with the maximum surface temperature. In this context, F, m4 000 kg/(h m). There is no lateral heat flow. The heat-conducting layer of the floor heating system is thermally decoupled by thermal insulation

43、 from the structural base of the building. NOTE The aforementioned last condition does not concern the test procedure of Clause 9. 5 Documents for testing The system suppliers documents are taken as the basis for the determination of the thermal output. The following documents shall be provided: Ins

44、tallation drawing (section) of the floor heating system, covering two pipe spacing, including the peripheral area and giving information on the materials used (if necessary, the test results regarding the heat conductivity values of the materials shall be provided). Technical documentation of the sy

45、stem. This information shall contain any details necessary for the calculation of the construction customary on site. It shall be submitted to the installer in the same form. With a member of the testing body present, a demonstration surface of approximately 2 m 2 m is constructed to represent the a

46、ctual construction used on site. 1) National regulations may limit this temperature to a lower value. 2) Some floor covering materials may require lower temperatures. BS EN 1264-2:2008+A1:2012EN 1264-2:2008+A1:2012 (E)EN 1264-2:2008+A1:2012 (E) 7 6 Calculation of the specific thermal output (charact

47、eristic curves and limit curves) 6.1 General approach (see 2, 4) The specific thermal output q at the surface of a floor is determined by the following parameters: Pipe spacing T; Thickness suand heat conductivity Eof the layer above the pipe; Heat conduction resistance R, Bof the floor covering; Pi

48、pe external diameter D = da, including the sheathing (D = dM) if necessary and the heat conductivity of the pipe Ror the sheathing M. In case of pipes having non-circular cross sections, the equivalent diameter of a circular pipe having the same circumference shall be used in the calculation (the sc

49、reed covering shall not be changed). Thickness and heat conductivity of permanently mounted diffusion barrier layers with a thickness up to 0,3 mm need not be considered in the calculation. In this case, D = dashall be used; Heat diffusion devices having the characteristic value KWLin accordance with 6.3; Contact between the pipes and the heat diffusion devices or the screed, chara