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용융탄산염 연료전지의 운전변수가 성능에 미치는 영향에 대한 수치모사와 실험치와의 비교
Numerical Modeling of Effects of Operating Variables of MCFC on the Cell Performance and Comparisons with Experimental Data
HWAHAK KONGHAK, August 1995, 33(4), 479-487(9), NONE
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Abstract
용융탄산염 단위연료전지에서 등온가정하에서 운전변수가 성능에 미치는 영향을 모사하기 위한 수학적 모델이 제시되었다. 문헌상의 음극저항식 중 아레니우스 상수에 2배를 하여 계산된 총괄저항값은 실험치와 일치하였다. 이 결과를 기초로 하여 전류밀도, 가스이용률(즉 유속,), 가스조성,전지온도가 성능에 미치는 영향에 대한 수치모사와 실험치[1]를 비교 연구하였따. 등온모델에서 운전변수가 전압,출력 등의 성능에 미치는 영향에 대한 수치모사 결과는 실험치와 잘 일치하였다.
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.
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Sampath V, Sammels AF, J. Electrochem. Soc., 127, 79 (1980)
Selman JR, Molten Salt Committee of the Electrochemical Society of Japan (1988)
Yuh CY, Selman JR, J. Electrochem. Soc., 138, 3642 (1991)
Ahn YJ, Chung GY, Ju JB, Nam SW, Oh IH, Lim TH, Hong SA, HWAHAK KONGHAK, 32(6), 830 (1994)
Leo JM, Bolmen J, Mugerwa MN, "Fuel Cell Systems," Plenum Press, 345 (1992)
Smith JM, Van Ness HC, "Introduction to Chemical Engineering Thermodynamics," McGraw-Hill Book Company, 4th Ed. (1984)
Wolf TL, Wilemski G, J. Electrochem. Soc., 130, 48 (1983)
Wilemski G, J. Electrochem. Soc., 130, 117 (1983)
Appleby AJ, Foulkes RF, "Fuel Cell Handbook," U.S. Department of Energy, 539 (1989)
Incropera FP, Dewitt DP, "Introduction to Heat Transfer," John Wiley & Sons, Inc., New York, 825 (1989)
