Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Performance Characteristics of a Polymer Electrolyte Fuel Cell with the Anodic Supply Mode

고분자 전해질 연료전지의 수소극 공급모드에 따른 성능특성

  • 이용택 (고려대학교 기계공학과 대학원) ;
  • 박차식 (고려대학교 기계공학과 대학원) ;
  • 허재혁 (고려대학교 기계공학과 대학원) ;
  • 김용찬 (고려대학교 기계공학과)
  • Published : 2007.07.01
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Abstract

The water transport inside a polymer electrolyte fuel cell (PEFC) varied according to the anodic supply mode. The performance characteristics of a PEFC which can be affected by the water transport were observed with the anodic supply mode. In the flow-through and recirculation mode the performance showed no reduction with time because the flow in the anode was not stagnated. In the dead-end mode, without any discharged gas, the water remains inside of the anode, which caused the reduction of the performance with the lapse of time. However, even in the dead-end mode, little reduction of the performance with time was shown when only the anode was humidified externally. It means that the back-diffusion was the major factor to the accumulation of water in the anode rather than external humidification.

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References

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