1001635
doi
10.5281/zenodo.1001635
oai:zenodo.org:1001635
user-eu
C. Ozgur Colpan
Dokuz Eylul University
Numerical Studies of a 3D DMFC Short-Stack
David Ouellette
University of Toronto
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
<p>One of the primary challenges in fuel cell stack models, is the lack of numerical methods and computational<br>
resources available to handle a full-scale stack geometry (which can often have ~10-100 single cells stacked in<br>
series) to at least the same grid resolution and detailed physics as could be obtained in an equivalently detailed<br>
single cell model. To help resolve this challenge, a 3D modelling approach is proposed, and applied to a 5-cell direct<br>
methanol fuel cell (DMFC) short-stack. In this approach, the flow fields, backing layers and membranes are solved<br>
numerically in a 3D manner, whereas the electrochemical performance is solved analytically. This approach allowed<br>
for the detailed physics to be incorporated into the model without the requirement of a high mesh density within the<br>
MEA. Thus softening the computational load. Since it is well-known that non-uniform flow distributions within the<br>
stack’s cells and within the MEA can lead to accelerated aging of the fuel cell components, a parametric study on<br>
the anode and cathode flow rates, and methanol concentrations are examined numerically. The model was used to<br>
shed light onto the mechanisms that lead to non-uniform flow behaviour within the stack’s cells; help identify<br>
methods to maintain a uniform flow and concentration distribution within the stack; and to provide methods to<br>
minimize methanol crossover to the cathode.</p>
<p> </p>
<p>This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 661579. </p>
<p>Project Name: Development of a High Performance Flowing Electrolyte-Direct Methanol Fuel Cell Stack Through Modeling and Experimental Studies</p>
<p>Acronym: FEDMFC</p>
<p>Publication date: 2017-05-17</p>
Zenodo
2017-05-17
info:eu-repo/semantics/conferencePaper
1001634
user-eu
award_title=DEVELOPMENT OF A HIGH PERFORMANCE FLOWING ELECTROLYTE-DIRECT METHANOL FUEL CELL STACK THROUGH MODELING AND EXPERIMENTAL STUDIES; award_number=661579; award_identifiers_scheme=url; award_identifiers_identifier=https://cordis.europa.eu/projects/661579; funder_id=00k4n6c32; funder_name=European Commission;
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https://zenodo.org/records/1001635/files/c40.pdf
public
10.5281/zenodo.1001634
isVersionOf
doi