Mathematical model for proton exchange membrane fuel cells

Vladimir Gurau, Sadik Kakac, Hongtan Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

A two dimensional, non-isothermal mathematical model for the entire sandwich of a proton exchange membrane (PEM) fuel cell including the gas channels is developed. To take into consideration the real concentration distributions along the interface between the gas diffuser and catalyst layer, transport equations are solved simultaneously for the domain consisting of the coupled gas channel, gas diffuser, catalyst layer and membrane. The selfconsistent schematical model for porous media is used for the equations describing transport phenomena in the membrane, catalyst layers and gas diffusers, while standard Navier-Stokes, energy transport, continuity and species concentration equations are solved in the gas channels. A special handling of the transport equations enabled us to use the same numerical method to solve them, and therefore to treat the gas channel-gas diffuser-catalyst layer domains as an entirety, avoiding arbitrary boundary conditions at their interfaces. The oxygen mole fraction distribution in the coupled cathode gas channel-gas diffuser is studied for different values of the operating current density. Influences of the inlet conditions at the gas channel entries and of the gas diffuser porosity on the cell performance are also analyzed.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Advanced Energy Systems Division (Publication) AES
EditorsE. Sancaktar
Place of PublicationFairfield, NJ, United States
PublisherASME
Pages205-214
Number of pages10
Volume38
StatePublished - Dec 1 1998
Externally publishedYes
EventProceedings of the 1998 ASME International Mechanical Engineering Congress and Exposition - Anaheim, CA, USA
Duration: Nov 15 1998Nov 20 1998

Other

OtherProceedings of the 1998 ASME International Mechanical Engineering Congress and Exposition
CityAnaheim, CA, USA
Period11/15/9811/20/98

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Mechanical Engineering

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  • Cite this

    Gurau, V., Kakac, S., & Liu, H. (1998). Mathematical model for proton exchange membrane fuel cells. In E. Sancaktar (Ed.), American Society of Mechanical Engineers, Advanced Energy Systems Division (Publication) AES (Vol. 38, pp. 205-214). ASME.