Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Effect of Inlet Humidity Condition at Cathode Side on Performance of a Polymer Exchange Membrane Fuel Cell

캐소드극 입구 가습 조건이 고분자 전해질 연료전지의 성능에 미치는 영향

  • 문철언 (부산대학교 대학원 기계공학과) ;
  • 이서희 (부산대학교 대학원 기계공학과) ;
  • 고동수 (부산대학교 대학원 기계공학과) ;
  • 양장식 (부산대학교 기계 기술 연구소) ;
  • 최경민 (부산대학교 기계공학부) ;
  • 김덕줄 (부산대학교 기계공학부)
  • Published : 2007.05.30
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Abstract

This paper shows that inlet humidity condition at cathode side is one of dominant parameters affecting the performance of PEMFC. To investigate effects of inlet humidity condition, the performance measurements were conducted for a single PEMFC with two operating variables : cathode relative humidity and dry condition in anode dry. The fuel cell employed for the experiments is a unit PEMFC with a 25$Cm^2$, Nafion$^(R)$112 membrane. As a result of this study, the cell performance is getting higher by increasing inlet humidity condition at cathode side. The cell performance is different from each operating temperature an it has maximum30% higher than dry condition at 60$^{\circ}C$ operating temperature with 80% relative humidity.

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