Effect of air flow channel configuration on performance of direct methanol fuel cells.

공기극 채널 형상이 직접 메탄올 연료전지의 성능에 미치는 영향

  • 황용신 (서울대학교, 기계공학과) ;
  • 최훈 (서울대학교, 기계공학과) ;
  • 차석원 (서울대학교, 기계공학과) ;
  • 이대영 (한국과학기술연구원, 에너지메카닉스연구센터) ;
  • 김서영 (한국과학기술연구원, 에너지메카닉스연구센터)
  • Published : 2007.06.21


We consider the optimum air flow channel design for DMFC's in the present study. The effect of pressure drop across the inlet and outlet of a stack on the performance of a DMFC is the optimization of such geometric parameters is crucial to minimize the parasitic power usage by the auxiliary devices such as fuel pumps and blowers. In this paper, we present how the pressure drop control can optimize the driving point of a DMFC stack. Further, we show how the optimal fuel utilization ratio can be achieved, not degrading the performance of DMFC stacks. Overall, we discuss how the flow channel design affects the selection of balance of plant(BOP) components, the design of DMFC systems and the system efficiency.