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연료전지 모델을 이용한 분리판 분할 전류밀도분포 측정에 대한 연구
최용준(Yongjun Choi),이기용(Giyong Lee),남진무(Jinmoo Namg),주현철(Hyunchul Ju) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
The goal of this paper is to numerically evaluate the accuracy of the measurement technique by applying a three-dimensional, two-phase fuel cell model to a 100㎠ area fuel cell geometry in which segmented bipolar plate(BP) and non-segmented membrane are combined together. The measurement method via segmented BP is generally used to be justified. The simulation results revealed a similarity of the current distribution between membrane and BP but not perfectly matched. The maximum relative error of 33% exited near the U-turn regions and the numerical study further illustrates that the erroneous result originates from the BP segmented non-symmetrically based on the flow channels that allows some currents by passing flow channels to flow into its neighboring segment. Finally, this paper suggested optimal way to minimize the error between bipolar plate and membrane.