IEC 60534-8_4 Industrial Process Control Valves - Noise Considerations.pdf

IEC534PT*-494=48448930563552445NORMEINTERNAT1ONALEINTERNATIONALSTANDARDcCE1IECPremireditionFirstedition1994-05Vannesdergulationdesprocessusindustriels-Partie8:Considrationssurlebruit-Section4:PrdictiondubruitcrparuncoulementhydrodynamiqueIndustrial-processcontrolvalves-Part8:Noiseconsiderations-Section4:PredictionofnoisegeneratedbyhydrodynamicflowNumroderfrenceReferencenumberCEI/IEC534-8-4:1994COPYRIGHTInternationalElectrotechnicalCommissionLicensedbyInformationHandlingServices.IEC534PT*-494m48448930563553381WRvisiondelaprsentepublicationLecontenutechniquedespublicationsdelaCEIestcons-tammentrevuparlaCommissionafindassurerquilrefltebienltatactueldelatechnique.Lesrenseignementsrelatifscetravaildervision,ltablissementdesditionsrvisesetauxmisesjourpeuventtreobtenusauprsdesCornit&nationauxdelaCEIetenconsultantlesdocumentsci-dessous:BulletindelaCEIAnnuairedelaCEICataloguedespublicationsdelaCEIPubliannuelementTerminologieEncequiconcernelaterminologiegnrale,lelecteursereporteralaPublication50delaCEI:VocabulaireElectrotechniqueInternational(VEI),quiesttabliesousformedechapitressparstraitantchacundunsujetdfini,lIndexg-nraltantpublisparment.DesdtailscompletssurleVE1peuventtreobtenussurdemande.LestermesetdfinitionsfigurantdanslaprsentepublicationonttsoitreprisduVEI,soitspkifiquementapprouvsauxfinsdecettepublication.SymbolesgraphiquesetlittrauxPourlessymbolesgraphiques,symboleslittrauxetsignesdusagegnralapprouvsparlaCEI,lelecteurconsultera:-laPublication27delaCEI:Symboleslittrauxutiliserenlectrotechnique；-iaPublication617delaCEI:Symbolesgraphiquespourschmas.LessymbolesetsignescontenusdanslaprsentepublicationonttsoitreprisdesPublications27ou617delaCEI,soilspcifiquementapprouvsauxfinsdecettepublication.PublicationsdelaCEItabliesparlemmeComitdEtudes,Lattentiondulecteurestairesurledeuximefeuilletdelacouverture,quinumrelespublicationsdelaCEIprparesparleComitdEtudesquiatablilaprsentepublication.RevisionofthispublicationThetechnicalcontentofIECpublicationsiskeptunderwn-stantreviewbytheIEC,thusensuringthatthecontentreflectscurrenttechnology.Informationontheworkofrevision,theissueofrevisededi-tionsandamendmentsheetsmaybeobtainedfromIECNationalCommitteesandfromthefollowingIECsources:1IECBulletinIECYearbookCatalogueofIECPublicationsPublishedyearlyTerminologyForgeneralterminology,readersarereferredtoIECPubli-cation50:IntemationalElectrotechnicalVocabulary(IEV),whichisissuedintheformofseparatechapterseachdealingwithaspecificfield,theGeneralIndexbeingpublishedasase-paratebookletFulldetailsoftheIEVwillbesuppliedonrequest.ThetermsanddefinitionscontainedinthepresentpublicationhaveeitherbeentakenfromtheIEVorhavebeenspecificallyapprovedforthepurposeofthispublication.GraphicalandlettersymbolsForgraphicalsymbols,andlettersymbolsandsignsapprovedbytheIECforgeneraluse.readersarereferredto:-IECPublication27:Lettersymbolstobeusedinelectricaltechnology；-IECPublication617:Graphicalsymbolsfordiagrams.ThesymbolsandsignscontainedinthepresentpublicationhaveeitherbeentakenfromIECPublications27or617,orhavebeenspecificallyapvedforthepurposeofthispublication.IECpublicationspreparedbythesameTechnicalCommitteeTheattentionofreadersisdrawntothebackcover.which,listsIECpublicationsissuedbytheTechnicalCommitteewhichhaspreparedthepresentpublication.COPYRIGHTInternationalElectrotechnicalCommissionLicensedbyInformationHandlingServicesIEC534PT*-494m48448930563554218mNORMEINTERNATIONALEINTERNATIONALSTANDARDCE1IEC534-8-4PremireditionFirstedition1994-05Vannesdergulationdesprocessusindustriels-Partie8:Considrationssurlebruit-Section4:PrdictiondubruitcrparuncoulementhydrodynamiqueIndustrial-processcontrolvalves-Part8:Noiseconsiderations-Section4:Predictionofnoisegeneratedbyhydrodynamicflow0CE1I994Droitsdereproductionrservs-Copyright-allrightsreservedAucunspartisdemepiMicalnmpan&rereprduilaniuti-SOUSquoiquefmquecasche(paraucunprod.Blecfroniqwwmcanique.yoonprisiasoiesmcrofilms.sanslaccordcriidelditeur.Nopari01thispubbcatmmaybereproducedorutedinMYformorbyanymsans.e(ectronicormechanical.nchdmgpholoo3pyingandmicrofilm.wiihoutpermksionnwrttingfromthepublisherBureauCentraideiaCommissionElectrotechniqueInternationale3.ruedeVarem&Genve.SuisseCommissionEiectrolechniqueinternationaleCODEPRIXinternationalEleclrotechnicalCommissionpRICECODEMMeuwpouan3nemotexwuecnanHOMMCCUPourpru.voircatalogueenvigueurForprice.seecurrentcatalogueCOPYRIGHTInternationalElectrotechnicalCommissionLicensedbyInformationHandlingServicesIEC534PT*8-49448448930563555154=-2-SOMMAIRE534-8-4OCE111994AVANT-PROPOS.ArtidesDomainedapplication.Rfrencesnormatives.Dfinitions.Symboles.Basesdecalcul.CalculduniveaudepuissancesonoreinterneNWSi.Emissiondubruitarien.Limitesdapplication.AnnexeA.Bibliographie.Pages4tL668a1010162024COPYRIGHTInternationalElectrotechnicalCommissionLicensedbyInformationHandlingServicesIEC534PT*8-474048448930563556O70W534-8-4OIEC:1994-3-CONTENTSpageFOREWORD.5ClauseScope.Normativereferences.Definitions.Symbols.Basisofcalculation.CalculationoftheinternalsoundpowerlevelLWi.Airbornenoiseemission.Applicationlimits.779911111721AnnexA.Bibliography.24COPYRIGHTInternationalElectrotechnicalCommissionLicensedbyInformationHandlingServicesIEC534PT*-494m4Y489305635.57T27m-4-534-8-4OCE111994COMMISSIONELECTROTECHNIQUEINTERNATIoNALEVANNESDEREGULATIONDESPROCESSUSINDUSTRIELS-Partie8:Considrationssurlebruit-Section4:PrdictiondubruitcrparuncoulementhydrodynamiqueAVANT-PROPOS1)LaCE1(CommissionElectrotechniqueInternationale)estuneorganisationmondialedenormalisationcomposedelensembledescomitslectrotechniquesnationaux(ComitsnationauxdelaCEI).LaCE1apourobjetdefavoriserlacooprationinternationalepourtouteslesquestionsdenormalisationdanslesdomainesdellectricitetdellectronique.Aceteffet,laCEI,entreautresactivits,publiedesNormesinternationales.Leurlaborationestconfiedescomitsdtudes,auxtravauxdesquelstoutComitnationalintressparlesujettraitpeutparticiper.Lesorganisationsinternationales,gouvernementalesetnongouvernementales,enliaisonaveclaCEI,participentgalementauxtravaux.LaCE1collaboretroitementaveclOrganisationInternationaledeNormalisation(ISO).selondesconditionsfixesparaccordentrelesdeuxorganisations.2)LesdcisionsouaccordsofficielsdelaCE1encequiconcernelesquestionstechniques,prparsparlescomitsdtudesosontreprsentstouslesComitsnationauxsTntressantcesquestions,exprimentdanslaplusgrandemesurepossibleunaccordinternationalsurlessujetsexamins.3)Cesdcisionsconstituentdesrecommandationsinternationalespubliessousformedenormes,derapportstechniquesoudeguidesetagrescommetellesparlesComitsnationaux.4)Danslebutdencouragerlunificationinternationale,lesComitsnationauxdeiaCE1sengagentappliquerdefaontransparente,danstoutelamesurepossible,lesNormesinternationalesdelaCE1dansleursnormesnationalesetrgionales.ToutedivergenceentrelanormedelaCE1etlanormenationaleourgionalecorrespondantedoittreindiqueentermesclairsdanscettedernire.LaprsentesectiondelaNormenternationaleCE1534-8attablieparlesous-comit658:Dispositifs,ducomitdtudes65delaCEI:Mesureetcommandedanslesprocessusindustriels.Letextedecettenormeestissudesdocumentssuivants:DISRapportdevoteII65B(BC)86I65B(BC)891Lerapportdevoteindiqudansletableauci-dessusdonnetouteinformationsurlevoteayantaboutilapprobationdecettenorme.LannexeAestdonneuniquementtitredinformation.COPYRIGHTInternationalElectrotechnicalCommissionLicensedbyInformationHandlingServicesIEC534PT*-494=48448730563558763=DISsSS(C0)SS534-8-4OIEC:?994-5-ReportonVoting65B(C0)89INTERNATIONALELECTROTECHNICALCOMMISSIONINDUSTRIAL-PROCESSCONTROLVALVES-Part8:Noiseconsiderations-Section4:PredictionofnoisegeneratedbyhydrodynamicflowFOREWORD1)TheIEC(InternationalElectrotechnicalCommission)isaworldwideorganizationforstandardizationcomprisingalinationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectoftheIECistopromoteinternationalcooperationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.Tothisendandinadditiontootheractivities.theIECpublishesInternationalStandards.Theirpreparationisentrustedtotechnicalcommittees；anyIECNationalCommitteeinterestedinthesubjectdealtwithmayparticipateinthispreparatorywork.International,governmentalandnon-governmentalorganizationsliaisingwiththeIECalsoparticipateinthispreparation.TheIECcollaboratescloselywiththeInternationalOrganizationforStandardization(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwoorganizations.2)TheformaldecisionsoragreementsoftheIEContechnicalmatters,preparedbytechnicalcommitteesonwhichalltheNationalCommitteeshavingaspecialinterestth