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용융탄산염 단위 연료전지 내의 에너지와 물질수지에 의한 온도분포의 예측과 운전변수의 영향
안영주,정귀영,주재백,남석우,오인환,임태훈,홍성안 ( Young Joo Ahn,Gui Yung Chung,Jae Back Ju,Suk Woo Nam,In Hwan Oh,Tae Hoon Lim,Seong Ahn Hong ) 한국화학공학회 1994 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.32 No.6
A mathematical model is proposed to simulate the current density and the temperature distribution of molten carbonate unit fuel cell. In this model, conversion of gases, heat transfer by conduction, convection, and radiation, and heat generation by reaction were considered for the cross and the parallel flow type fuel cell. Additionally, the effects of the gas flow rate and the ratio of the flow rate of the cathode gas to that of the anode gas were studied. It was seen that the current density distribution was affected by the anode gas, while the temperature distribution by the cathode gas. It was also found that, in order to get an uniform temperature distribution, the ratio of the flow rate of the cathode gas to that of the anode gas should be around 0.25.
용융탄산염 연료전지의 운전변수가 성능에 미치는 영향에 대한 수치모사와 실험치와의 비교
안영주,정귀영,주재백,남석우,오인환,임태훈,홍성안 ( Young Joo Ahn,Gui Yung Chung,Jae Back Ju,Suk Woo Nam,In Hwan Oh,Tae Hoon Lim,Seong Ahn Hong ) 한국화학공학회 1995 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.33 No.4
A mathematical model is proposed to simulate the effect of variables on cell performances of molten carbonate unit fuel cell at the constant temperature. Values of the total cell resistance calculated with twice of the Arrhenius constant in the equation of anode resistance, presented in the reference, agreed well with experimental data. On the basis of these results, numerical calculations of the effects of current density, the gas utilization(i.e. flow rate), gas compositions, and cell temperature on the cell performances were compared with experimental data[1]. At the constant temperature, numerical calculations of the effects of operating variables on the cell performances, such as voltage and power, were agreed well with experimental data.