Experimental Measurement of Relative Permeability Functions for Fuel Cell GDL Materials

Irfan Hussaini, Chao-Yang Wang

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

1 Scopus citations

Abstract

Gas diffusion layer in PEM fuel cells plays a pivotal role in water management. Modeling of liquid water transport through the GDL relies on knowledge of relative permeability functions in the in-plane and through-plane directions. In the present work, air and water relative permeabilities are experimentally determined as functions of saturation for typical GDL materials such as Toray-060, -090, -120 carbon paper and E-Tek carbon cloth materials in their plain, untreated forms. Saturation is measured using an ex-situ gravimetric method. Absolute and relative permeability functions in the two directions of interest are presented. Significant departure from the generally assumed cubic function of saturation is observed. ©The Electrochemical Society.
Original languageEnglish (US)
Title of host publicationECS Transactions
PublisherThe Electrochemical Society
Pages1539-1550
Number of pages12
ISBN (Print)9781566777384
DOIs
StatePublished - 2009
Externally publishedYes

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