New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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A Study on the Performance Evaluation of Double-Layered Catayst MEA

이중촉매 MEA의 성능평가에 관한 연구

  • 김홍건 (전주대학교 기계자동차공학과) ;
  • 강성수 (전주대학교 기계자동차공학과) ;
  • 곽이구 (전주대학교 기계자동차공학과) ;
  • 강영우 (전주대학교 메카트로닉스공학과)
  • Published : 2006.06.01
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Abstract

An experimental and numerical study is carried out to investigate the performance and the efficiency humidifying Membrane Electrolyte Assembly and having the double-layered catalyst in a fuel cell system which is taken into account the physical and thermal concept. Based on the principals of the problem, the equation of electronic charge conservation equation, gas-phase continuity equation, and mass balance equation are used for the numerical calculation. A unit cell for $200cm^2$ MEA is assembled and measured for finding better operational situation. After finding the optimal condition, 10 cell stacked PEMFC is fabricated. For the performance evaluation, V-I and power curves are examined in detail by changing the condition of humidity, temperature, pressure, thickness of catalyst and oxidant. It is found that the power is maximized around 500W at 80A.

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