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생물화공 에너지 / 환경 / 3kW 급 고분자전해질 연료전지 스택의 운전특성 연구
최형준(Hyung Joon Choi),안상열(Sang Yeoul Ahn),조성아(Sung Ah Cho),이정규(Jeong Kyu Lee),심중표(Joong Pyo Shim),차석렬(Suk Yal Cha),하흥용(Heung Yong Ha),홍성안(Sung Ahn Hong),임태원(Tae Won Lim),오인환(In Hwan Oh) 한국화학공학회 2000 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.38 No.4
A counter-flow type 39-cell proton exchange membrane fuel cell(PEMFC) stack with an effective electrode area of 200 ㎠ has been assembled and its operational characteristics were investigated. Under the condition of atmospheric pressure and 75 ℃, the maximum power of the stack was 3.94 ㎾(0.51 W/㎠/cell) and 2.53 ㎾(0.32 W/㎠/cell) for H₂/O₂ and H₂/air, respectively. The analysis of the factors causing voltage losses revealed that polarization resistance of the electrodes was the main reason. Although ununiform distribution in voltage and temperature of the unit cells was observed, the continuous operation of the stack beyond 90 hours was possible.