Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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The effect of PEMFC stack performance at air supply condition

공기공급 조건이 스택성능에 미치는 영향

  • Park, Chang-Kwon (Dept. of Mechanical Engineering, Chonnam National University) ;
  • Oh, Byeong-Soo (Dept. of Mechanical Engineering, Chonnam National University)
  • 박창권 (전남대학교 기계시스템공학부) ;
  • 오병수 (전남대학교 기계시스템공학부)
  • Published : 2008.06.30
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Abstract

Research has been proceeded on fuel cell which is fueled by hydrogen. Polymer electrolyte membrane fuel cell (PEMFC) is promising power source due to high power density, simple construction and operation at low temperature. But it has problems such as high cost, temperature dependent performance. These problems could be solved by experiment which is useful for analysis and optimization of fuel cell performance and heat management. In this paper, when hydrogen flows constantly at the stoichiometry of ${\xi}=1.6$, the performance of the fuel cell stack was increased and the voltage difference between each cells was decreased according to the increase of air stoichiometry by 2.0, 2.5, 3.0. Therefore, the control of air flow rate in the same gas channel is important to get higher performance. Purpose of this research is to expect operation temperature, flow rate, performance and mass transportation through experiment and to help actual manufacture of PEM fuel cell stack.

Keywords

References

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