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Analysis on a Dynamic Model with One Dimension in Water Transportation of PEM Fuel Cell

PEM연료전지의 수분전달에 있어서 1차원 해석을 수행한 동적모델에 관한 연구

  • Bakhtiar, Agung (Dept. of Refrigeration and Air-conditioning Engineering, Pukyong National University) ;
  • Hong, Boo-Pyo (Dept. of Industrial Installation Automation, Korean Polytech I University) ;
  • You, Jin-Kwang (Dept. of Automotive, Dong-Pusan College University) ;
  • Kim, Young-Bok (Dept. of Mechanical System Engineering, Pukyong National University) ;
  • Yoon, Jung-In (Dept. of Refrigeration and Air-conditioning Engineering, Pukyong National University) ;
  • Choi, Kwang-Hwan (Dept. of Refrigeration and Air-conditioning Engineering, Pukyong National University)
  • 아궁박티르 (냉동공조공학과, 공과대학, 부경대학교) ;
  • 홍부표 (산업설치자동화과, 한국폴리텍 I 대학) ;
  • 유진광 (자동차공학과, 동부산대학) ;
  • 김영복 (기계시스템공학과, 공과대학, 부경대학교) ;
  • 윤정인 (냉동공조공학과, 공과대학, 부경대학교) ;
  • 최광환 (냉동공조공학과, 공과대학, 부경대학교)
  • Received : 2012.10.03
  • Accepted : 2012.10.12
  • Published : 2012.10.30

Abstract

Water balance has a significant impact on the overall fuel cell performance. Maintenance of proper water management should provide an adequate membrane hydration and avoidance of water flooding in the catalyst layer and gas diffusion layer. Considering the important of advanced water management in PEM fuel cell, this study proposes a simple one dimensional water transportation model of PEM fuel cell for use in a dynamic condition. The model has been created by assumption that the output is the water liquid saturation difference. The liquid saturation change is the total difference between the additional water and the removal water on the system. The water addition is obtained from fuel cell reaction and the electro osmotic drag. The water removal is obtained from capillary transport and evaporation process. The result shows that the capillary water transport of low temperature fuel cell is high because the evaporation rate is low.

Keywords

References

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