熔融碳酸盐燃料电池单体传热传质数值模拟

NUMERICAL SIMULATING HEAT AND MASS TRANSFER IN A MOLTEN CARBONATE FUEL CELL

在分析熔融碳酸盐燃料电池性能的基础上 ,考虑了电池内的电化学反应、传热传质及电压———电流关系等影响因素 ,提出一套计算稳态条件下熔融碳酸盐燃料电池的温度与电流密度分布的数学模型。并利用它对不同气流方式 (叉流、顺流和逆流等 )的电池分别做了计算。

In this paper, the performance of a molten carbonate fuel cell was investigated numerically. A numerical model has been developed to simulate the parameter distribution in the molten carbonate fuel cell under the steady state. In particular, the model can consider simultaneously the dominant processes of a cell, such as mass transport, chemical reactions, heat transfer, and voltage current relations. Moreover, it is also capable of calculating the fuel cell with different gas flow direction (cross , co , and counter flow). The model is an effective tool for optimal design and operation analysis of fuel cells.