한국수소및신에너지학회논문집 (Journal of Hydrogen and New Energy)

  • 제26권2호
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  • Pages.136-147
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  • 2015
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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고분자전해질 연료전지 Dead-end 운전 최적화에 대한 실험적인 연구

Experimental Analysis for Optimization of PEM Fuel Cell Dead-end Operation

  • 이봉구 (과학기술연합대학교대학원 신에너지기술공학) ;
  • 손영준 (과학기술연합대학교대학원 신에너지기술공학)
  • Lee, Bonggu (Advanced Energy and Technology, University of Science and Technology) ;
  • Sohn, Young-Jun (Advanced Energy and Technology, University of Science and Technology)
  • 투고 : 2015.03.30
  • 심사 : 2015.04.30
  • 발행 : 2015.04.30
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초록

Dead-ended operation of Proton Exchange Membrane Fuel Cell(PEMFC) provides the simplification of fuel cell systems to reduce fuel consumption and weight of fuel cell. However, the water accumulation within the channel prohibits a uniform supply of fuel. Optimization of the purge strategy is required to increase the fuel cell efficiency since fuel and water are removed during the purge process. In this study, we investigated the average voltage output which depends on two interrelated conditions, namely, the supply gas pressure, purging valve open time. In addition, flow visualization was performed to better understand the water build-up on the anode side and cathode side of PEMFC in terms of a variety of the current density. We analyzed the correlation between the purge condition and water flooding.

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참고문헌

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