熔融碳酸盐燃料电池热力特性研究与实验分析

Study on Thermodynamic Characteristics and Experimental Analysis of Molten Carbonate Fuel Cells

基于质量、能量和动量守恒原理和热力学特性,建立了一维熔融碳酸盐燃料电池的数学模型,应用容阻特性将复杂的偏微分方程转换为适用于快速仿真的差分方程组求解,并对燃料电池进行了实验分析.该数学模型考虑了电化学反应,反映了燃料电池的分布参数特性.利用该模型分析某一工况下熔融碳酸盐燃料电池的性能,通过与实验数据的对比表明,容阻特性的建模方法在燃料电池系统中是可行的,该模型可以反映熔融碳酸盐燃料电池的特性.

This work presented a one-dimensional mathematical model for molten carbonate fuel cell（MCFC） based on mass,energy and momentum conservation principles and thermodynamic properties.（Using） the V-R modeling technique the partial differential equations can be changed to ordinary differential（equations） which meet the quick simulation.The electrochemical reactions are considered in the model,and the characteristics of distributed parameters are shown.Some experiments were carried out,and the performance of the MCFC at a certain condition was analyzed using the model.A good agreement between the simulation and experimental results is presented,which shows the feasibility of using the volume-resistance characteristic model to reflect the molten carbonate fuel cell characteristics.