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Permanent link (DOI): https://doi.org/10.7939/R3T727P0B

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An open-source two-phase non-isothermal mathematical model of a polymer electrolyte membrane fuel cell Open Access

Descriptions

Other title
Subject/Keyword
open-source
membrane electrode assembly
polymer electrolyte fuel cells
non-isothermal
finite element method
two-phase
simulation
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Bhaiya,Madhur
Supervisor and department
Secanell,Marc (Mechanical Engineering)
Examining committee member and department
Lange,Carlos (Mechanical Engineering)
Prasad,Vinay (Chemical and Materials Engineering)
Department
Department of Mechanical Engineering
Specialization

Date accepted
2014-01-02T14:46:04Z
Graduation date
2014-06
Degree
Master of Science
Degree level
Master's
Abstract
A comprehensive open-source two-phase non-isothermal MEA model including the microporous layer and accounting for multi-step reaction kinetics for the ORR and HOR is developed for the first time. The model is integrated into openFCST, an open-source FEM based fuel cell simulation framework. All the significant non-isothermal effects such as anisotropic heat transport, irreversible and reversible heating due to electrochemical reactions, ohmic heating, heat of sorption and thermal osmosis are accounted for in the model. Accurate experimental data for capillary pressure-saturation relationships are reformulated and incorporated into a liquid water saturation transport equation. The model showed, for the first time, that thermal osmosis effects account for up to 15% water-crossover in membrane, and the heat of sorption can be as large as protonic ohmic heating. The model could accurately predict the performance drops corresponding to mass transport limitations due to presence of liquid water and ohmic losses due to membrane dry-out.
Language
English
DOI
doi:10.7939/R3T727P0B
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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