BS EN ISO 294614 2025.docx

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1、BSENISO29461-4:2025AirintakefilterSyStemSforrotarymachineryPart4:Testmethodsforstaticfiltersystemsincoastalandoffshoreenvironmentsbsi.NationalforewordThisBritishStandardistheUKimplementationofENISO29461-4:2025.ItisidenticaltoISO29461-4:2025.TheUKparticipationinitspreparationwasentrustedtoTechnicalCo

2、mmitteeMCE/21,Filtersforgasesandliquids.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitscommitteemanager.ContractualandlegalconsiderationsThispublicationhasbeenpreparedingoodfaith,howevernorepresentation,warranty,assuranceorundertaking(expressorimplied)isorwillbemade,andnore

3、sponsibilityorliabilityisorwillbeacceptedbyBSIinrelationtotheadequacy,accuracy,completenessorreasonablenessofthispublication.Allandanysuchresponsibilityandliabilityisexpresslydisclaimedtothefullextentpermittedbythelaw.Thispublicationisprovidedasis,andistobeusedattherecipientsownrisk.Therecipientisad

4、visedtoconsiderseekingprofessionalguidancewithrespecttoitsuseofthispublication.Thispublicationisnotintendedtoconstituteacontract.Usersareresponsibleforitscorrectapplication.TheBritishStandardsInstitution2025PublishedbyBSIStandardsLimited2025ISBN9780539172355ICS29.160.99CompliancewithaBritishStandard

5、cannotconferimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30April2025.Amendments/corrigendaissuedsincepublicationDateTextaffectedEUROPEANSTANDARD29461-4NORMEEUROPEENNEEuropaischenormICS29.160.99April2025EnglishVersionAirintakef

6、iltersystemsforrotarymachinery-Part4:Testmethodsforstaticfiltersystemsincoastalandoffshoreenvironments(ISO29461-4:2025)Systemesdefiltrationdairdadmissionpourmachinestournantes-Partie4:MethodesdessaidessystemesdefiltrationStatiqueenmilieucotieretoffshore(ISO29461-4:2025)AnsaugfiltersystemevonRotation

7、smaschinen-Priifverfahren-Teil4:PriifverfahrenfurStatischeFiltersystemeinMeeres-undOffshore-Umgebungen(ISO29461-4:2025)ThisEuropeanStandardwasapprovedbyCENon28March2025.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofa

8、nationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytranslati

9、onundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,

10、Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCen

11、tre:RuedelaScience23,B-1040Brussels2025CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.EuropeanforewordThisdocument(ENISO29461-4:2025)hasbeenpreparedbyTechnicalCommitteeISO/TC142CleaningequipmentforairandothergasesincollaborationwithTechnicalCommitteeCEN/TC195C

12、leaningequipmentforairandothergasesthesecretariatofwhichisheldbyUNI.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyOctober2025,andconflictingnationalstandardsshallbewithdrawnatthelatestbyOctober2025.Attentionisdrawntothep

13、ossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Anyfeedbackandquestionsonthisdocumentshouldbedirectedtotheusersnationalstandardsbody/nationalcommittee.AcompletelistingofthesebodiescanbefoundontheCENwebsite.

14、AccordingtotheCEN-CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,M

15、alta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandtheUnitedKingdom.EndorsementnoticeThetextofISO29461-4:2025hasbeenapprovedbyCENasENISO29461-4:2025withoutanymodification.ContentsPageForewordvIntroductionvi1 Scope12 N

16、ormativereferences13 Termsanddefinitions13.1 Airflows23.2 Efficiencies24 Symbolsandabbreviatedterms25 Principle36 Testrigandequipment36.1 Testrig36.2 Testduct46.2.1 Testriglayout46.2.2 Testairconditioning56.2.3 Measurementoftheairflowrate56.2.4 Measurementofpressuredrop56.2.5 Solidsaltaerosolmixings

17、ection56.2.6 Measurementoftemperatureandrelativehumidity56.3 Measurementequipment56.3.1 Testriginstrumentation56.3.2 Sodiumflamephotometer66.4 Solidsaltaerosolsampling76.4.1 Sampleprobes76.4.2 Samplingairflow76.5 Solidsaltaerosolgeneration76.5.1 Saltgeneration76.5.2 Aerosolinjection.76.6 Watersprayd

18、evice76.7 Watercollectiondevice.77 Qualificationoftestrigandapparatus87.1 Pressuresystemtesting87.2 Solidsaltaerosoluniformity87.2.1 Aerosoluniformityparameters87.2.2 Aerosoluniformityprotocol87.2.3 Aerosoluniformityresults87.2.4 Waterdropletsizedistributions97.2.5 Waterfogsedimentationcheck97.2.6 S

19、cheduleofqualification98 Testconditions98.1 Testair98.2 Testwater109 Testmethod109.1 Stopcriteria109.2 Adjustmentofthetestairflowrate109.3 Preparatorychecks109.3.1 Operationalreadinessofthemeasuringinstruments109.3.2 Zerolevelcheckmeasurementofthesodiumflamephotometer(SFP)109.3.3 Absolutepressure,te

20、mperatureandrelativehumidityofthetestair109.3.4 Startingupthesaltgenerator119.3.5 Installationofthetestfilter119.3.6 Flushingthetestfilter119.4 Measurements119.4.1 Measurementofpressuredrop119.4.2 Measurementofthesaltremovalefficiency119.4.3 Measurementofthewaterremovalefficiency129.4.4 Cumulativesa

21、ltloading129.4.5 Cumulativesaltpenetration1310 Testprocedure1310.1 Preparationoftestrig(notestobjectinstalled)1310.2 Cleaningoftestrig1310.3 Primaryweighingofthetestobject1310.4 Installationofthetestobject1410.5 Primarywaterdelugechallenge1410.6 Saltloading1410.7 Waterdelugechallenge1410.8 Relativeh

22、umiditycycles1510.9 Endoftest1510.10 Secondaryweighingofthetestobject1511 Reportingresults1611.1 General1611.2 Observations1611.3 Reporttemplate18AnnexA(informative)Ultrafinedrysolidsaltgenerator21Bibliography28ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnation

23、alstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governme

24、ntal,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedi

25、fferentapprovalcriterianeededforthedifferenttypesofISOdocumentshouldbenoted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(SeeWWW.iso.org/directives).ISOdrawsattentiontothepossibilitythattheimplementationofthisdocumentmayinvolvetheuseof（八）patent(三).ISOtakesnoposi

26、tionconcerningtheevidence,validityorapplicabilityofanyclaimedpatentrightsinrespectthereof.Asofthedateofpublicationofthisdocument,ISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimplementthisdocument.However,implementersarecautionedthatthismaynotrepresentthelatestinformation,whichmaybeobtain

27、edfromthepatentdatabaseavailableatWWW.iso.org/patents.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.Foranexplanationofthevoluntarynatureofstandards,themeaningofISOspecificte

28、rmsandexpressionsrelatedtoconformityassessment,aswellasinformationaboutISOsadherencetotheWorldTradeOrganization(WTO)principlesintheTechnicalBarrierstoTrade(TBT工seeWWW.iso.org/iso/foreword.html.ThisdocumentwaspreparedbyTechnicalCommitteeISO/TC142Cleaningequipmentforairandothergases,incollaborationwit

29、htheEuropeanCommitteeforStandardization(CEN)TechnicalCommitteeCEN/TC195,Cleaningequipmentforairandothergases,inaccordancewiththeAgreementontechnicalcooperationbetweenISOandCEN(ViennaAgreement).AlistofallpartsintheISO29461seriescanbefoundontheISOwebsite.Anyfeedbackorquestionsonthisdocumentshouldbedir

30、ectedtotheusersnationalstandardsbody.AcompletelistingofthesebodiescanbefoundatWWW.isoorq/membnrs.html.IntroductionTheuseofgasturbinesintheoilandgasindustryrepresentsoneofthemostchallengingapplicationsforthisenginetechnology.Themajorconstraintoftheoilandgasindustryistorun24/7atfullloadwithminimumdown

31、time.Inoilandgasactivity,theinstallationmustberunascloseaspossibleto100%ofthetimewiththehighestlevelofefficiency(currentproductioncomparedtonominalproduction).Anadditionalchallengeforoilandgasapplicationsliesintheabsenceofaback-upturbineonsite,especiallyformechanical-drivegasturbineconfigurations.Th

32、ecoastalandoffshoreenvironmentprobablyrepresentstheharshestconditionsforgasturbines.Humidity,rainfallandseasonaldustarethemostobviousvisibleconditionsthatoperatorsfaceonsite.Hiddeninthecombustionair,alkalisuchaspotassium,sodiumormagnesium,aswellassulfurlsoot,volatilehydrocarbons,oilyvapours,andparti

33、clesallgenerategasturbineissuesincludingcompressorfouling,air-coolingpassagefouling,vaneandbladeerosion,andcompressorcorrosion.Combinedwithsulfurinfuels,thesealkaliincombustionaircreatehotcorrosion.Finally,heavyrainfallcaninducefilterwashingsthatreleasefilteredparticlesintothecompressor.Allthesephen

34、omenaimpactthegasturbineavailabilityonsite.Theroleofahighlyefficientairfiltrationsystemistomaintaintheenginecleanlinessbypreventingtheintroductionofcontaminantsintothegasturbineairintake.Achievingahighlevelofenginecleanlinesshelpsmaintainengineintegrityandefficiencyandreducestheneedforwaterwasheswhi

35、chgenerateavoidabledowntime.Currently,highefficiencyfilterelementsarecharacterizedbyalimitednumberofparameters,namelyfilterefficiencyandmostpenetratingparticlesize(MPPS).Theseparameters,relatedtoasinglefilterelement,aremeasuredinlaboratoryconditionsclosetofavourableinlandconditionswithsyntheticdust.

36、Consequently,theseconditionsarefarfromtherealityobservedonsite,offshoreornearcoast,wherefilterelementsareusuallypartofasystem.Thetestresultsdonotthereforeprovideabasisforpredictingeitheroperationalfilterperformanceorservicelife.Theobjectiveofthisdocumentistoconsiderhowtheeffectofwaterspray,humiditya

37、ndsaltaffectstheperformanceofanairfilter.Thetestedairflowpassingthroughthefilterelementisclosetotheairflowrateoperatedonsiteforthethreedifferentconcepts:low,mediumorhighvelocityfilterelements.Sootlvolatilehydrocarbons,oilyvapoursandparticlesalsohaveimpactonfiltercharacterizationandperformance.Thesep

38、aratepartsofISO29461coverparticles,whilesoot,volatilehydrocarbonsandoilyvapoursareyettobeaddressed.Currenttestmethodsarenotmatureenoughfortheinclusionofsoot,volatilehydrocarbonsandoilyvapours.Theageingofafilterelementinstalledoffshoreandnearthecoastisaddressedtoallowthepredictionofoperationalfilterp

39、erformanceanditsassociatedservicelife.Itmustbeunderstoodhowfilterelementsperformduringdifferentcyclesrepresentingtypicalsiteconditionssuchasheavyrainfall,lowandhighhumidity,filterelementunloadedandloaded.Dependingonthegasturbineapplications,theservicelifeofthefilterelementisalsoacriteriontotakeintoc

40、onsideration.Inthiscase,therobustness,loadingcapacityandpressuredropcharacteristicsofthefilterelementsbecomekeyparametersfordesignandtesting.Zy461-4：ZUZbtTTt三11THlttUTcilSLditlcitlISO294614:2025(匕U)Airintakefiltersystemsforrotarymachinery一Part4:Testmethodsforstaticfiltersystemsincoastalandoffshoreen

41、vironments1 ScopeThisdocumentdefinestestmethodsforperformancetestingofindividualfilterelementsandofthecompletefiltrationsystemThisprocedureisintendedforfilterelementsandfiltersystemswhichoperateatflowratedupto8000m3hperfilterelement.2 NormativereferencesThefollowingdocumentsarereferredtointhetextins

42、uchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.ISO2813,Paintsandvarnishes-Determinationofglossvalueat2060and85ISO5167-1,Measurementofflui

43、dflowbymeansofpressuredifferentialdevicesinsertedincircularcrosssectionconduitsrunningfullPart1:GeneralprinciplesandrequirementsISO16890-2:2022,AirfiltersforgeneralventilationPart2:MeasurementOffractionalefficiencyandairflowresistanceISO29461-2:2022,Airintakefiltersystemsforrotarymachinery-Testmetho

44、ds-Part2:FilterelementendurancetestinfogandmistenvironmentsISO29463-llHighefficiencyfiltersandfiltermediaforremovingparticlesfromairPart1:Classification,performance,testingandmarkingISO29464,CleaningofairandOthergasesVocabulary3 TermsanddefinitionsForthepurposesofthisdocument,thetermsanddefinitionsg

45、iveninISO29464andthefollowingapply.ISOandIECmaintainterminologydatabasesforuseinstandardizationatthefollowingaddresses: ISOOnlinebrowsingplatform:availableathttps:WWW.iso.org/obp IECElectropedia:availableathttps:WWW.electropedia.org/1.1 Airflows3.1.1airflowratevolumeofairflowingthroughthefilterperun

46、ittimeSOURCE:ISO29464:2024,3.1,293.1.2testairflowraterateofairflowusedfortestingNote1toentry:Theflowrateisusuallyexpressedinvolumetricunitsm3h(cfm).Note2toentry:Testflowratemaydifferfromthemanufacturersspecifiedflowthroughtheaircleaner.SOURCE:ISO29464:20213.1.323.1.3designairflowrateairflowratespeci

47、fiedbythemanufacturerSOURCE:ISO29464:2024,3.1,301.2 Efficiencies1.2.1saltremovalefficiencymeasureoftheabilityofafiltertoremovesaltfromtheairpassingthroughit1.2.2waterremovalefficiencymeasureoftheabilityofafiltertoremovewaterfromtheairpassingthroughit1.3 testdeviceairfilterordevicetobetested4 Symbols

48、andabbreviatedtermsCVcoefficientofvariationCWmwaterfogmassconcentration,gm3dsaturatedwetairmoisturecontent,g/kgd0ambientairmoisturecontent,g/kgdPpressuredrop,PaEsaltsaltremovalefficiencyEwwaterremovalefficiencympwatermasspenetratedthroughtestedfilterattheendofthetest,kg11ottotalwaterfoggenerationamount,kgNasodiumNaClsodiumchlorideRHrelativehumidity