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Optimization of Condensate Water Drain Logic Depending on the Characteristics of Drain Valve in FPS of Fuel Cell Vehicle and Development of Anode Water Management Strategy to Achieve High Fuel Efficiency and Operational Stability

연료전지 자동차 내 수소 공급 시스템에서 드레인 밸브 특성에 따른 드레인 로직 최적화 및 연비와 운전안정성을 고려한 물 관리 전략 개발

AHN, DEUKKUEN;LEE, HYUNJAE;SHIM, HYOSUB;KIM, DAEJONG
안득균;이현재;심효섭;김대종

  • Received : 2016.03.29
  • Accepted : 2016.04.30
  • Published : 2016.04.30

Abstract

A proton exchange membrane fuel cell (PEMFC) produces only water at cathode by an electrochemical reaction between hydrogen and oxygen. The generated water is transported across the membrane from the cathode to the anode. The transported water collected in water-trap and drained to the cathode within the humidifier outlet. If the condensate water is not being drained at the appropriate time, condensate water in the anode can cause the performance degradation or fuel efficiency degradation of fuel cell by the anode flooding or unnecessary hydrogen discharge. In this study, we proposed an optimization method of condensate water drain logic for the water drain performance and the water drain algorithm as considered the condensate water generating speed prep emergency case. In conclusion, we developed the water management strategy of fuel processing system (FPS) as securing fuel efficiency and operating stability.

Keywords

Fuel cell;Anode condensate water;Water management;Drain logic;Drain valve

References

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Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)