chp02 Using the PEM Fuel Cell Model

chp02 Using the PEM Fuel Cell Model

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时间:2019-05-25

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1、Chapter2.UsingthePEMFuelCellModelTheprocedureforsettingupandsolvingPEMfuelcellproblemsisdescribedindetailinthischapter.Pleaserefertothefollowingsectionsformoreinformation:Section2.1:IntroductionSection2.2:GeometryDe nitionforthePEMFuelCellModelSection2.3:InstallingthePEMFuelCellModelSection2

2、.4:LoadingthePEMFuelCellModuleSection2.5:SettingUpthePEMFuelCellModuleSection2.6:PEMFuelCellModelingSection2.7:ModelingofCurrentCollectorsSection2.8:PEMFuelCellBoundaryConditionsSection2.9:SolutionGuidelinesforthePEMFuelCellModelSection2.10:PostprocessingthePEMFuelCellModelSection2.11:Use

3、r-AccessibleFunctionsSection2.12:IV-CurveCalculationsUsingtheTextInterface2.1IntroductionTheFLUENTPEMFuelCell(PEMFC)modeliscomprisedofseveraluser-de nedfunc-tions(UDFs)andagraphicaluserinterface.Thepotential eldsaresolvedasuser-de nedscalars.Theliquidwatersaturation,s,andthewatercontent,,areal

4、sosolvedasuser-de nedscalars.Theelectrochemicalreactionsoccurringonthecatalystaremod-eledthroughvarioussourcetermswhileothermodelparametersarehandledthroughtheuserinterface.ThePEMFCmodelcanbeusedinparallelFLUENTaswell.cFluentInc.July19,20062-1UsingthePEMFuelCellModel2.2GeometryDefinitionforthePEM

5、FuelCellModelDuetothefactthatthereareanumberofdi erentphysicalzonesassociatedwiththefuelcell,thefollowingregionsmustbepresentinthefuelcellmesh:Anode owchannelAnodegasdi usionlayerAnodecatalystlayerMembranelayerCathodecatalystlayerCathodegasdi usionlayerCathode owchannelThefollowingzonesha

6、vetobeidenti ed,ifpresentinthefuelcellmesh:AnodecurrentcollectorCathodecurrentcollectorCoolantchannel2.3InstallingthePEMFuelCellModelThePEMFuelCell(PEMFC)modelisprovidedasanaddonmodulewiththestandardFLUENTlicensedsoftware.AspeciallicenseisrequiredtousethePEMFCmodel.Themoduleisinstalledwiththe

7、standardinstallationofFLUENTinadirectorycalledaddons/fuelcells2.2inyourinstallationarea.ThePEMFCmodelconsistsofaUDFlibraryandapre-compiledschemelibrary,whichneedstobeloadedandactivatedbeforecalculationscanbeperformed.2-2cFlu

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