chp01 PEM Fuel Cell Model Theory

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1、Chapter1.PEMFuelCellModelTheoryThischapterpresentsthetheoreticalbackgroundforthePEMfuelcellmodelingcapa-bilitiesinFLUENT.Section1.1:IntroductionSection1.2:ElectrochemistryModelingSection1.3:CurrentandMassConservationSection1.4:LiquidWaterFormation,Transport,anditsEectsSection1.5:Propert

2、iesSection1.6:TransientSimulationofPEMFuelCells1.1IntroductionThePEMFuelCell(PEMFC)moduleisprovidedasanaddonmodulewiththestandardFLUENTlicensedsoftware.AspeciallicenseisrequiredtousethePEMFCmodule.Afuelcellisanenergyconversiondevicethatconvertsthechemicalenergyoffuelintoelectricalenergy.Asch

3、ematicofapolymerelectrolytemembrane(PEM)fuelcellisshowninFigure1.1.1.cFluentInc.July19,20061-1PEMFuelCellModelTheory



















































































Cooli

4、ngChannel(s)









































GasChannel(H)









































2AnodeCollectore−AnodeGasDiffusionLayer+−2H24H+4eAnodeCatalystLayer++HHloadElectrolyteMembraneCa

5、thodeCatalystLayer+−O+4H+4e22HO2CathodeGasDiffusionLayer




















































































































6、









GasChannel(air)CathodeCollector



















































































CoolingChannel(s)Figure1.1.1:SchematicofaPEMFuelCellHydrogen owsintot

7、hefuelcellontheanodeside.Itdiusesthroughtheporousgasdiusionlayersandcomesincontactwiththecatalystlayer.Hereitformshydrogenionsandelectrons.Thehydrogenionsdiusethroughthepolymerelectrolytemembraneatthecenter,theelectrons owthroughthegasdiu