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고분자 전해질 연료전지를 위한 연료주입구 설계 및 수치해석
엄승배(Uhm, Seung-Bae),나태경(Na, Tae-Kyung),김홍석(Kim, Hong-Suk),백정식(Baek, Jung-Sik),성동묵(Sung, Dong-Mug),김태민(Kim, Tae-Min) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.06
The Performance of a PEMFC stack is strongly dependent on the uniform reactants distribution on MEA. The uniform distribution can be achieved by flow-field pattern and manifold design optimized to satisfy operating conditions. This paper investigates uniform reactants distribution in channels by changing manifold shape and inlet mass flow rate. Typical U and Z shape and modified U and Z shape manifolds with buffer zone were designed. To check the uniform reactants distribution, standard deviation of mass flow rate was compared. The numerical results show that the inlet mass flow rate, inlet shape, and manifolds shape are critical factor for uniform distribution.