EN 13487-2002 en Heat exchangers Forced convection air cooled refrigerant condensers and dry coolers Sound measurement《热交换器 强制对流空气冷却制冷剂凝结器和干式冷却机 声音测量》.pdf

1、BRITISH STANDARD BS EN 13487:2003 Heat exchangers Forced convection air cooled refrigerant condensers and dry coolers Sound measurement The European Standard EN 13487:2003 has the status of a British Standard ICS 17.140.20; 27.060.30 BS EN 13487:2003 This British Standard, was published under the au

2、thority of the Standards Policy and Strategy Committee on 19 December 2003 BSI 19 December 2003 ISBN 0 580 43138 X National foreword This British Standard is the official English language version of EN 13487:2003. The UK participation in its preparation was entrusted to Technical Committee RHE/30, H

3、eat exchangers, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catal

4、ogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its cor

5、rect application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests in

6、formed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 20, an inside back cover and a back cover. The BSI copyright notice displayed in this document i

7、ndicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13487 December2003 ICS17.140.20;27.060.30 Englishversion HeatexchangersForcedconvectionaircooledrefrigerant condensersanddrycoolersSoundmeasurement E

8、changeursthermiquesArocondenseursconvection forceetbatteriefroideMesuragedubruit WrmeaustauscherVentilatorbelftete KltemittelverflssigerundTrockenkhltrme Schallmessung ThisEuropeanStandardwasapprovedbyCENon1October2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatethe

9、conditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German

10、).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ir

11、eland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymea

12、nsreserved worldwideforCENnationalMembers. Ref.No.EN13487:2003EEN13487:2003(E) 2 Contents page Foreword . 3 Introduction 4 1 Scope 5 2 Normativereferences 5 3 Termsanddefinitions. 6 4 Instrumentation . 7 5 Manufacturersdata . . 7 6 Testconditions. . 8 6.1 Testmethods . 8 6.2 Operatingconditionofthet

13、estsubject . . 8 6.3 Ambientconditions . 8 6.4 Arrangementofmeasuringpoints . . 8 6.4.1 General . 8 6.4.2 Apparatuswithverticalairthrowanddrawthrougharrangement 8 6.4.3 Apparatuswithhorizontalairthrowanddrawthrougharrangement . 9 6.4.4 Specialapparatus. . 9 7 Testprocedures . . 9 7.1 Measurementofso

14、undpressure/intensitylevels 9 7.2 Measurementofthebackgroundnoise . . 10 7.3 Datatoberecorded. 10 8 Calculations. 10 8.1 Correctionvalueforthebackgroundnoise . 10 8.2 Correctionvaluefortheinfluenceoftheambient . 10 8.3 Calculationofsounddata . . 11 8.3.1 Aweightedsoundpowerlevel 11 8.3.2 Averagesoun

15、dpressurelevelonthepartialmeasuringareasatoe. 11 8.3.3 Soundpowerlevelofthetestsubject. 11 9 Conversiontonominalfanspeed . 12 10 Testreport 12 AnnexA (normative) Positionsofmeasuringpointsforverticalairthrow 13 A.1 Examplewithonefan . 13 A.2 Examplewithsixfans. 14 AnnexB (normative) Positionsofmeasu

16、ringpointsforhorizontalairthrow . 15 B.1 Examplewithonefan . 15 B.2 Examplewithsixfans. 16 AnnexC (normative) Standardmethodforcalculatingthesoundpressurelevel 17 AnnexD (normative) Deviationsfromthetestsubject. 18 D.1 Modelrangescomposedofmodules 18 D.2 Dimensionsoftheheatexchangercoil . . 18 Annex

17、E (informative) Directivity . .19 E.1 General . 19 E.2 Definition 19 E.3 Calculationofthedirectivitynumber. . 19 Bibliography . 20EN13487:2003(E) 3 Foreword ThisdocumentEN13487:2003hasbeenpreparedbyTechnicalCommitteeCEN/TC110,“Heat exchangers”,thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardsh

18、allbegiventhestatusofanationalstandard,eitherbypublicationofan identicaltextorbyendorsement,atthelatestbyJune 2004,andconflictingnationalstandardsshall bewithdrawnatthelatestbyJune2004. AnnexesA,B,CandDarenormative.AnnexEisinformative. Thisdocumentcontainsabibliography. AccordingtotheCEN/CENELECInte

19、rnalRegulations,thenationalstandardsorganizationsofthe followingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg, Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandtheUni

20、ted Kingdom.EN13487:2003(E) 4 Introduction ThisEuropeanStandardisoneofaseriesofEuropeanStandardsdedicatedtoheatexchangers. Thisstandardprovidesinformationforassessingandpresentingtheacousticcharacteristicsofheat exchangersinoperation. Thisstandardalsoprovidesinformationnecessaryforspecifyingandselec

21、tingtheproductwhichbest suitstheneedsofthepurchaser.EN13487:2003(E) 5 1Scope Thisstandardspecifiesmethodsforuniformassessmentandtherecordingof: theAweightedsoundpowerlevel; thesoundpowerspectrum; acalculationmethodforanoverallaveragesoundpressurelevelatagivendistance. Amongthesedata,thesoundpowerlev

22、elistheonlyunambiguouscharacteristic. Thisstandardisapplicableto: forcedconvectionaircooledrefrigerantcondensersasspecifiedinEN327; aircooledliquidcoolers“drycoolers“asspecifiedinEN1048. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromother publications.

23、Thesenormativereferencesarecitedattheappropriateplacesinthetext,andthe publicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofany ofthesepublicationsapplytothisEuropeanStandardonlywhenincorporatedinitbyamendmentor revision.Forundatedreferencesthelatesteditionofthepublic

24、ationreferredtoapplies(including amendments). EN327, HeatexchangersForcedconvectionaircooledrefrigerantcondensorsTestprocedurefor establishingperformance. EN1048, HeatexchangersAircooledliquidcoolers“drycoolers“Testprocedurefor establishingtheperformance . ENISO3741, AcousticsDeterminationofsoundpow

25、erlevelsofnoisesourcesusingsound pressurePrecisionmethodsforreverberationrooms(ISO3741:1999). ENISO3744, AcousticsDeterminationofsoundpowerlevelsofnoisesourcesusingsound pressureEngineeringmethodinanessentiallyfreefieldoverareflectingplane(ISO3744:1994). ENISO96141, AcousticsDeterminationofsoundpowe

26、rlevelsofnoisesourcesusingsound intensityPart1:Measurementsatdiscretepoints(ISO96141:1993). ENISO12001, AcousticsNoiseemittedbymachineryandequipmentRulesforthedraftingand presentationofanoisetestcode(ISO12001:1996). ENISO/IEC17025, Generalrequirementsforthecompetenceoftestingandcalibrationlaboratori

27、es (ISO/IEC17025:1999). EN616721 ,ElectroacousticsSoundlevelmetersPart1:Specifications(IEC616721:2002). EN616722 ,ElectroacousticsSoundlevelmetersPart2:Patternevaluationtests(IEC61672 2:2003).EN13487:2003(E) 6 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninEN

28、ISO3744,with definitionsfromotherappropriateISOstandards,wherethesedonotcontradictENISO3744, togetherwiththefollowingapply. 3.1 forcedconvectionaircooledrefrigerantcondenser refrigerationsystemcomponentthatcondensesrefrigerantvapourbyrejectingheattoair,whichis mechanicallycirculatedoveritsdryheattra

29、nsfersurfacebyintegralfansandfandrives.Theheat transfercoilincludesdistributingandcollectingheaders.SeeEN327 Inthefollowing“forcedconvectionaircooledrefrigerantcondenser“isreferredtoas“apparatus“. 3.2 forcedconvectionaircooledliquidcooler;drycooler selfcontainedsystemthatcoolsasinglephaseliquidbyrej

30、ectingsensibleheatviaaheatexchanger, toairthatismechanicallycirculatedbyintegralfans.SeeEN1048 Inthefollowing“forcedconvectionaircooledliquidcooler;drycooler“isreferredtoas“apparatus“. 3.3 soundpressurelevel,L P tentimesthelogarithmtothebase10oftheratioofthesquareofthesoundpressuretothesquareof ther

31、eferencesoundpressure.Soundpressurelevelsareexpressedindecibels 3.4 nominalsoundpressurelevel averageAweightedsoundpressurelevelonanenvelopingareaintheshapeofaparallelepipedwith agivendistancefromthereferencebox,determinedfromthesoundpowerlevel NOTE Forthispurposeitisassumedthatthesoundradiationonth

32、eentireenvelopingareaisuniform. 3.5 soundspectrum soundpowerlevelorsoundpressurelevel(unweighted)intheoctavebandswiththecenter frequenciesfrom63Hzto8000Hz 3.6 referencebox hypotheticalsurfacewhichisthesmallestrectangularparallelepipedthatjustenclosesthesourceand terminatesonthereflectingplane Theref

33、erenceboxenclosesthewholecasing,including,ifapplicable,itsnormalsupportinglegs,fans anddrives.Refrigerant/liquidconnectionsandelectricalsupplycablesarenottakenintoaccount whendeterminingthereferencebox. 3.7 measurementsurface hypotheticalsurfaceofareaS,envelopingthesource,onwhichthemeasurementpoints

34、arelocated. Themeasurementsurfaceterminatesononereflectingplane 3.8 backgroundnoise noisefromallsourcesotherthanthesourceundertestEN13487:2003(E) 7 3.9 module geometricallysimilargroupofcomponentsfromwhich,whenmultipliedbyanintegernumber,arange ofunitsisbuilt Amoduletypicallycomprises: afanwithmotor

35、; aheatexchangercoil; acasingwhichensurestheconductionoftheairflowasintended,includingsupportinglegsfor verticalairflow. Forthepurposesofthisstandard,thesignificantdimensionsofamoduleare: sizeofthefananditsarrangementrelativetotheheatexchanger; speedofthefan; finandtubegeometry; airinletareaofthehea

36、texchangercoil; depthofthecoilindirectionoftheairflow(numberofrowsdeep). 3.10 testsubject apparatuswithallpartsnecessarytofunctionandinstandardformwithoutaccessories.Thisapplies especiallytothesupportinglegs(whereapplicable)andtheheatexchangercoil Whereanapparatusisusedforverticalandhorizontalairflo

37、wdirection,themeasurementwith verticalairflowdirectionisusedasthebasisfortheevaluationofthesounddata 4Instrumentation Aprecisionsoundpressurelevelmeterwithoctavebandfilters,andamicrophoneasrequiredbythe respectivestandardandconformingtoEN616721andEN616722shallbeusedandcalibrated beforethemeasurement

38、ofeachapparatus. 5 Manufacturersdata Thetesthouseshallbesuppliedwiththefollowinginformationondeliveryoftheapparatus: typeandidentification; dimensionswhicharenecessaryfortheidentificationoftheapparatusundertest; typeoffan,itsmanufacturer,anditsidentification; nominalvoltageofthemotors; nominalfreque

39、ncyofthesupply nominalfanspeeds;EN13487:2003(E) 8 installationarrangement. 6Test conditions 6.1Test methods ThemethodsoftestshallbeasspecifiedinENISO3741,ENISO3744orENISO96141. Allmethodsusedshallmeettheminimumgrade2,Engineering,inaccordancewithENISO12001. NOTE Itisrecommended,foranyapparatus,module

40、swithonlyonefanaretested. 6.2 Operatingconditionofthetestsubject Thetestsubjectshallbemountedandfunctioninthemannerprescribedforoperationinthefield.The testsubjectshallnotbeconnectedtorefrigerantorliquidcircuits. Motors/fansshallbeoperatedatthevoltages,frequenciesandfanspeedsettings,specifiedforuse

41、understeadystateconditions. 6.3Ambient conditions Theambientconditionsshallbesuchthattheairvelocityatthemicrophoneisbelow2m/s. 6.4 Arrangementofmeasuringpoints 6.4.1General Themeasuringpoints,i.e.themicrophonepositionsshallbelocatedonameasuringplanein accordancewithannexesAandB.Thedistancebetweenthe

42、referenceboxandthemeasuring planesshallbe1m. NOTE Duetothedesignofthetestsubjects,themicrophonepositionsasspecifiedinENISO3744arenot suitable. 6.4.2 Apparatuswithverticalairthrowanddrawthrougharrangement ThearrangementofmeasuringpointsshallbechoseninaccordancewithannexA. Themeasuringpointsforapparat

43、uswithonefanshallbepositionedonthepartialmeasuringareas asfollows(seeA.1): measuringpoint partialmeasuringarea 1,2,3,4 a 5,6 b 7,8 c 9,10 d 11,12 eEN13487:2003(E) 9 Foranapparatuswithmorethanonefanadditionalmeasuringpointsshallbepositionedonthe partialmeasuringareasonthecentrelinebetweenthefansandonstraightlinesconnectingthe measuringpointsspecifiedabove(seeA.2). 6.4.3 Apparatuswithhorizontalairthrowanddrawthrougharrangement ThepositionofthemeasuringpointsshallbechosenaccordingtoannexB. Formodul