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The Influence of Water and Thermal Conditions on the Performance of PEM Fuel Cell

[+] Author Affiliations
Y. Y. Yan, L. Y. Sung, H. S. Chu, K. C. Tsay, F. S. Tsu, F. Chen, R. J. Shyu

Energy and Resources Laboratories, ITRI, Hsinchu, Taiwan, R.O.C.

Paper No. FUELCELL2003-1757, pp. 487-492; 6 pages
doi:10.1115/FUELCELL2003-1757
From:
  • ASME 2003 1st International Conference on Fuel Cell Science, Engineering and Technology
  • 1st International Fuel Cell Science, Engineering and Technology Conference
  • Rochester, New York, USA, April 21–23, 2003
  • Conference Sponsors: Electronic and Photonic Packaging Division
  • ISBN: 0-7918-3668-1
  • Copyright © 2003 by ASME

abstract

The conditions of water content in the proton exchange membrane fuel cell (PEMFC) are studied in this research. It is known that the hydrogen proton should accompany with water molecule in order to drift through the membrane from anode to cathode. This drift force will concern to the fuel cell performance. However, too much water content may result of flooding. When flooding appears, some catalyst surfaces may be covered with water and result of the catalysts inactive. This will reduce the electrochemical reaction rate. Furthermore, due to the water molecule will occupy the space, this will hinder the reactant molecules approaching to the catalyst. Therefore, the management of water for the fuel cells is very important. The performance can be optimized with a better control of cell conditions. Some important conditions that concern to the heat and water management are investigated. They include cell temperature, reactant flow rate, humidity and pressure. A standard single cell stack with active area of 25cm2 was set for this study.

Copyright © 2003 by ASME

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