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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Design and Performance Test for a Fuel Cell Ejector to Reduce its Development Cost

개발 비용 감소를 위한 연료전지용 이젝터의 설계 및 성능평가

  • Kim, Min-Jin (PEFC Research Group, New Energy Department, Korea Institute of Energy Research) ;
  • Kim, Dong-Ha (Mechanical Engineering, Kyungpook National Univ.) ;
  • Yu, Sang-Phil (PEFC Research Group, New Energy Department, Korea Institute of Energy Research) ;
  • Lee, Won-Yong (PEFC Research Group, New Energy Department, Korea Institute of Energy Research) ;
  • Kim, Chang-Soo (PEFC Research Group, New Energy Department, Korea Institute of Energy Research)
  • 김민진 (한국에너지기술연구원 고분자연료전지연구단) ;
  • 김동하 (경북대학교 기계공학과) ;
  • 유상필 (한국에너지기술연구원 고분자연료전지연구단) ;
  • 이원용 (한국에너지기술연구원 고분자연료전지연구단) ;
  • 김창수 (한국에너지기술연구원 고분자연료전지연구단)
  • Published : 2006.09.15
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Abstract

Recirculation for the unreacted fuel is necessary to improve the overall efficiency of the fuel cell system and to prevent fuel starvation since the fuel cell for a vehicle application is a closed system. In case of the automotive fuel cell, the ejector which does not require any parasitic power is good for the performance improvement and easy operation. It is essential to design the customized ejector due to the lack of the commercial ejector corresponding to the operating conditions of the fuel cell systems. In this study, the design methodology for the ejector customized to an automotive fuel cell is proposed. The model based sensitivity analysis prevents the time-consuming redesign and reduces the cost of developing ejector. As a result, the customized ejector to meet the desired performance within overall operating range has developed for the PEMFC automotive system.

Keywords

References

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