Author:
Zaffou Rachid,Kunz Harold R.,Fenton James M.
Abstract
Water transport induced by heat flow across polymer electrolyte fuel cell (PEFC) membranes has been studied under well-controlled thermal conditions. The investigation showed that water can be transferred across a membrane electrode assembly (MEA) that is subjected to a through-plane temperature differential. Thermo-osmotic water transport is a membrane-controlled phenomenon. The thermally driven water flux was found to be relatively large even for small temperature differences (~1oC). A physical model of thermo-osmosis is proposed. Comparison between the proposed model results and the experimental data shows good agreement.
Publisher
The Electrochemical Society
Cited by
11 articles.
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