Through-plane permeability for untreated and PTFE-treated gas diffusion layers in proton exchange membrane fuel cells

M. S. Ismail, T. Damjanovic, K. Hughes, D. B. Ingham, L. Ma, M. Pourkashanian, Masli Irwan Rosli

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The through-plane permeability has been experimentally measured for untreated and polytetrafluoroethylene-treated (PTFE-treated) gas diffusion layers (GDLs), as used in proton exchange membrane fuel cells. Contrary to what the literature has previously shown, the results suggest that there exists an optimum value for the wet-proofing agent, PTFE, at which the though-plane permeability of the GDL is a maximum. The analysis that is undertaken to investigate the effect of the air compressibility shows that there is an underestimation in the through-plane permeability of the tested GDLs by of the order of 9% if the density of the air is assumed to be constant. Also, a nondimensionalisation analysis shows that ignoring the non-Darcy effects at the maximum reported flow rates result in negligible errors for the untreated and treated GDLs.

Original languageEnglish
Pages (from-to)510161-510167
Number of pages7
JournalJournal of Fuel Cell Science and Technology
Volume7
Issue number5
DOIs
Publication statusPublished - Oct 2010
Externally publishedYes

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Diffusion in gases
Polytetrafluoroethylene
Proton exchange membrane fuel cells (PEMFC)
Polytetrafluoroethylenes
Air
Compressibility
Flow rate

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Renewable Energy, Sustainability and the Environment
  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology

Cite this

Through-plane permeability for untreated and PTFE-treated gas diffusion layers in proton exchange membrane fuel cells. / Ismail, M. S.; Damjanovic, T.; Hughes, K.; Ingham, D. B.; Ma, L.; Pourkashanian, M.; Rosli, Masli Irwan.

In: Journal of Fuel Cell Science and Technology, Vol. 7, No. 5, 10.2010, p. 510161-510167.

Research output: Contribution to journalArticle

Ismail, M. S. ; Damjanovic, T. ; Hughes, K. ; Ingham, D. B. ; Ma, L. ; Pourkashanian, M. ; Rosli, Masli Irwan. / Through-plane permeability for untreated and PTFE-treated gas diffusion layers in proton exchange membrane fuel cells. In: Journal of Fuel Cell Science and Technology. 2010 ; Vol. 7, No. 5. pp. 510161-510167.
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AU - Pourkashanian, M.

AU - Rosli, Masli Irwan

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