ERA

Download the full-sized PDF of Modelling of PEMFC Catalyst Layer Mass Transport and Electro-Chemical Reactions Using Multi-scale SimulationsDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R3FX7461P

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Modelling of PEMFC Catalyst Layer Mass Transport and Electro-Chemical Reactions Using Multi-scale Simulations Open Access

Descriptions

Other title
Subject/Keyword
catalyst layers
finite element method
micro structure
open-source
agglomerates
multi-scale
polymer electrolyte fuel cells
simulation
membrane electrode assembly
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Wardlaw, Philip E
Supervisor and department
Dr. Marc Secanell
Examining committee member and department
Dr. Vinay Prasad, CHEME
Dr. Marc Secanell, MECE
Dr. Carlos Lange, MECE
Department
Department of Mechanical Engineering
Specialization

Date accepted
2014-09-22T15:32:16Z
Graduation date
2014-11
Degree
Master of Science
Degree level
Master's
Abstract
The focus of this work is on improving understanding of mass transport limiting phenomena occurring within the micro-structure of Polymer Electrolyte Fuel Cell (PEFC) Catalyst Layers (CL). Micro-scale models, namely agglomerates, are employed within multi-scale CL framework, to examine many phenomena, such as the conductivity of protons in Nafion ionomer, non homogeneous catalyst distributions, oxygen dissolution in ionomer thin films, polydisperse agglomerate structures, and proton transport mechanisms within water filled carbon porous media. Catalyst distribution within CL micro structures, oxygen dissolution in Nafion described as a non-equilibrium process, and the mechanism by which protons are transported within water filled carbon pores are all found to be significant and potential explanations for PEMFC mass transport limited behaviour. The developed simulation framework presented in this work, as part of OpenFCST, the Open source Fuel Cell Simulations Toolbox, can be used in conjunction with experimental methods to improve understanding of said phenomena, improving understanding and design of PEMFCs.
Language
English
DOI
doi:10.7939/R3FX7461P
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.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2014-11-15T08:16:23.114+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (PDF/A)
Mime type: application/pdf
File size: 3981991
Last modified: 2015:10:12 15:05:07-06:00
Filename: Wardlaw_Philip_E_20144_MSC.pdf
Original checksum: 1488dd1458498436fc1a00a2a8f23664
Activity of users you follow
User Activity Date