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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Removal of Flooding in a PEM Fuel Cell at Cathode by Flexural Wave

Flexural wave를 이용한 고분자 전해질 연료전지 공기극 내에서의 플러딩 제거

  • 김경록 (고려대학교 기계공학과 대학원) ;
  • 한성호 (고려대학교 기계공학과 대학원) ;
  • 안득균 (고려대학교 기계공학과 대학원) ;
  • 최영돈 (고려대학교 기계공학과)
  • Published : 2010.02.28
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Abstract

Water management is an important issue of PEM fuel cell operation. Water is the product of the electrochemical reactions inside fuel cell. If liquid water accumulation becomes excessive in a fuel cell, water columns will clog the gas flow channel. This condition is referred to as flooding. A number of researchers have examined the water removal methods in order to improve the performance. In this paper, a new water removal method that investigates the use of vibro-acoutic methods is presented. Piezo-actuators which are devices to generate the flexural wave are attached at the end of a cathode bipolar plate. Flexural wave is used to impart energy to resting droplets and thus cause movement of the droplets in the direction of the traveling wave.

Keywords

References

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