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Parametric Study of the Porous Cathode in the PEM Fuel Cell

[+] Author Affiliations
Zhuqian Zhang, Li Jia

Beijing Jiaotong University, Beijing, China

Paper No. MNHT2008-52026, pp. 313-321; 9 pages
doi:10.1115/MNHT2008-52026
From:
  • ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer
  • ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer, Parts A and B
  • Tainan, Taiwan, June 6–9, 2008
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4292-4 | eISBN: 0-7918-3813-7
  • Copyright © 2008 by ASME

abstract

The electrochemical behavior and the reactant transport in the porous GDL and CL are controlled by a large number of parameters such as porosity, permeability, conductivity, catalyst loading, and average pore size etc. A three-dimensional PEM fuel cell model is developed. The model accounts for the mass, fluid and thermal transport processes as well as the electrochemical reaction. Using this model, the effects of the various porous electrode design parameters including porosity, solid electronic conductivity and thermal conductivity of cathode GDL, and the catalyst loading, average pore size of cathode CL are investigated through parametric study. The model is shown to agree well with experimental data over a substantial range of the porous electrode specifications. In addition, the model shows promise as a tool for optimizing the design of fuel cells.

Copyright © 2008 by ASME

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