基于直接碳燃料电池-内可逆卡诺热机耦合系统的性能研究

Study on the Performance of Direct Carbon Fuel Cell-endoreversible Carnot Heat Engine Coupling System

构建了一个新型的直接碳燃料电池-内可逆卡诺热机耦合系统。该系统将直接碳燃料电池工作过程中所产生的高品质废热利用起来,驱动卡诺热机,以提高整体工作性能。分别给出了直接碳燃料电池、内可逆卡诺热机以及耦合系统的性能解析表达式,分析得出耦合系统的性能要优于单一的直接碳燃料电池性能的结论。并通过数值模拟计算,展现了各电化学和热力学参数对耦合系统性能的影响,确立了耦合系统的最佳工作范围,为直接碳燃料电池的实际设计提供了理论指导。

A novel direct carbon fuel cell-endoreversible Carnot heat engine coupling system has been constructed,which uses the high quality waste heat generated from the operation of direct carbon fuel cell to drive the Carnot heat engine to improve the overall performance.The analytical expressions of direct carbon fuel cell,endoreversible Carnot heat engine and coupling system have been derived,and the analysis showed that the performance of the coupling system was better than that of a single direct carbon fuel cell.Through numerical simulation,the effects of electrochemical and thermodynamic parameters on the performance of the coupling system hare been demonstrated,and the optimal working range of the coupling system has been established.It provides theoretical guidance for the practical design of direct carbon fuel cell.