【摘要】 研究高效发电方法问题,燃料电池内部的温度、电流密度和反应气体浓度等参数分布对燃料电池的安全高效运行具有重要影响。全面考虑了熔融碳酸盐燃料电池内部电特性和热特性,为提高预测电池性能的准确性,提出了一整套熔融碳酸盐燃料电池单体二维数学模型,并在VC++环境下利用模型对顺流形式的熔融碳酸盐燃料电池单体的主要性能参数进行了稳态数值仿真。得出了燃料电池内部的温度、电流密度和反应气体浓度等参数的变化趋势,证明了建立的仿真模型能够有效的反映燃料电池内部的温度场、电流密度场和反应气体组分场稳态的特性,结果表明对熔融碳酸盐燃料电池的设计及运行具有一定的参考价值。更多还原

【Abstract】 The temperature distributions,current density and gas concentration inside of fuel cells play significant role in safe and efficent operation.This paper presents a set of two dimensional mathematical models of molten carbonate fuel cell,considering electrical character and heat character in molten carbonate fuel cell.A simulation model was created under the VC++ environment.We carried out the steady-state simulation of CO-flow molten carbonate fuel cell using the simulation model and obstained the trends of temperature,current density and concentration of gas distribution inside of fuel cells,which shows that the simulation model is effective.The results have some reference value for the design and operation of molten carbonate fuel cell.更多还原