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Permanent link (DOI): https://doi.org/10.7939/R3CN6Z65S

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A MIXED WETTABILITY PORE SIZE DISTRIBUTION MODEL FOR THE ANALYSIS OF WATER TRANSPORT IN PEMFC MATERIALS Open Access

Descriptions

Other title
Subject/Keyword
Porous media flow
Multiphase flow
Mixed wettability
Microporous layer
PEMFC
Cathode catalyst layer
Pore size distribution
PEFC
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Mateo Villanueva, Pedro Abdiel
Supervisor and department
Secanell, Marc (Mechanical Engineering)
Examining committee member and department
Minev, Peter (Mathematical and Statistical Scienes)
Flynn, Morris (Mechanical Engineering)
Department
Department of Mechanical Engineering
Specialization

Date accepted
2013-09-28T16:27:18Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
Water management on proton exchange membrane fuel cells is one of the biggest issues that stop the effective commercialization of this promising technology. Due to water flooding, the performance of fuel cells decays rapidly at high current densities. To better design fuel cell electrodes, a mixed wettability pore-size distribution model was developed, and used to estimate the effective transport properties of dry and partially flooded fuel cell porous layers. Using this model, microporous layers and conventional cathode catalyst layers were studied. Results revealed that mass transport limitations can be significantly improved by controlling the wettability and microstructure of the electrodes.
Language
English
DOI
doi:10.7939/R3CN6Z65S
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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