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ID:37577696
大小:417.15 KB
页数:32页
时间:2019-05-25
《chp02 Using the PEM Fuel Cell Model》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Chapter2.UsingthePEMFuelCellModelTheprocedureforsettingupandsolvingPEMfuelcellproblemsisdescribedindetailinthischapter.Pleaserefertothefollowingsectionsformoreinformation:Section2.1:IntroductionSection2.2:GeometryDenitionforthePEMFuelCellModelSection2.3:InstallingthePEMFuelCellModelSection2.4:L
2、oadingthePEMFuelCellModuleSection2.5:SettingUpthePEMFuelCellModuleSection2.6:PEMFuelCellModelingSection2.7:ModelingofCurrentCollectorsSection2.8:PEMFuelCellBoundaryConditionsSection2.9:SolutionGuidelinesforthePEMFuelCellModelSection2.10:PostprocessingthePEMFuelCellModelSection2.11:User-Access
3、ibleFunctionsSection2.12:IV-CurveCalculationsUsingtheTextInterface2.1IntroductionTheFLUENTPEMFuelCell(PEMFC)modeliscomprisedofseveraluser-denedfunc-tions(UDFs)andagraphicaluserinterface.Thepotentialeldsaresolvedasuser-denedscalars.Theliquidwatersaturation,s,andthewatercontent,,arealsosolvedasus
4、er-denedscalars.Theelectrochemicalreactionsoccurringonthecatalystaremod-eledthroughvarioussourcetermswhileothermodelparametersarehandledthroughtheuserinterface.ThePEMFCmodelcanbeusedinparallelFLUENTaswell.cFluentInc.July19,20062-1UsingthePEMFuelCellModel2.2GeometryDefinitionforthePEMFuelCellModelDue
5、tothefactthatthereareanumberofdierentphysicalzonesassociatedwiththefuelcell,thefollowingregionsmustbepresentinthefuelcellmesh:Anode owchannelAnodegasdiusionlayerAnodecatalystlayerMembranelayerCathodecatalystlayerCathodegasdiusionlayerCathode owchannelThefollowingzoneshavetobeidentied,ifpr
6、esentinthefuelcellmesh:AnodecurrentcollectorCathodecurrentcollectorCoolantchannel2.3InstallingthePEMFuelCellModelThePEMFuelCell(PEMFC)modelisprovidedasanaddonmodulewiththestandardFLUENTlicensedsoftware.AspeciallicenseisrequiredtousethePEMFCmodel.ThemoduleisinstalledwiththestandardinstallationofFL
7、UENTinadirectorycalledaddons/fuelcells2.2inyourinstallationarea.ThePEMFCmodelconsistsofaUDFlibraryandapre-compiledschemelibrary,whichneedstobeloadedandactivatedbeforecalculationscanbeperformed.2-2cFlu
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