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
