Water permeation through gas diffusion layers of proton exchange membrane fuel cells

A. Tamayol, M. Bahrami

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

1 Scopus citations

Abstract

Water transport through gas diffusion layer of proton exchange membrane fuels cells is investigated experimentally. A filtration cell is designed and the permeation threshold and the apparent water permeability of several carbon papers are investigated. Similar carbon paper with different thicknesses and different Teflon loadings are tested to study the effects of geometrical and surface properties on the water transport. Permeation threshold increases with both GDL thickness and Teflon loading. In addition, a hysteresis effect exists in GDLs and the permeation threshold reduces as the samples are retested. Moreover, several compressed GDL are tested and the results show that compression does not affect the breakthrough pressure significantly. The measured values of apparent permeability indicate that the majority of pores in GDLs are not filled with water and the reactant access to the catalyst layer is not hindered.

Original languageEnglish (US)
Title of host publicationASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
Pages975-981
Number of pages7
EditionPARTS A AND B
DOIs
StatePublished - 2010
EventASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010 - Vancouver, BC, Canada
Duration: Nov 12 2010Nov 18 2010

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
NumberPARTS A AND B
Volume5

Conference

ConferenceASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
CountryCanada
CityVancouver, BC
Period11/12/1011/18/10

Keywords

  • Gas diffusion layer
  • PEM fuel cell
  • Water flooding
  • Water permeability

ASJC Scopus subject areas

  • Mechanical Engineering

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  • Cite this

    Tamayol, A., & Bahrami, M. (2010). Water permeation through gas diffusion layers of proton exchange membrane fuel cells. In ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010 (PARTS A AND B ed., pp. 975-981). (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 5, No. PARTS A AND B). https://doi.org/10.1115/IMECE2010-40867