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International Heat Transfer Conference 12

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

Effects of Heat and Mass Transfer Enhancements on PEM Fuel Cell Performances

Tianhong Zhou
University of Miami, Department of Mechanical Engineering, Coral Gables, FL 33124

Hongtan Liu
University of Miami, Department of Mechanical Engineering, Coral Gables, FL 33124

DOI: 10.1615/IHTC12.210
6 pages

Résumé

A modeling comparison of the heat and mass transfer in PEM fuel cell with conventional and interdigitated flow field designs is performed. The modeling results clearly indicates that, when the pressuredrop penalty is omitted, the interdigiated flow field is superior over the conventional one in both power output and thermal management. The limiting current density of a fuel cell with an interdigitated flow field can be as large as 2-3 times of that with a conventional flow field. The temperature distribution is also more uniform which leads to a lower maximum temperature and better thermal management.

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