中国电机工程学报2011,Vol.31Issue(29):67-73,7.
三种流动型式的熔融碳酸盐燃料电池单体性能数值分析
Numerical Analysis of Single Molten Carbonate Fuel Cell Performance of Three Flow Manifolds
摘要
Abstract
The experiment result of a self-developed 10 cm×10 cm single MCFC were presented. Moreover, a linear fitting for the cell current-density and voltage according to experiment data was performed, and the effective resistance per area of MCFC using current level electrode and matrix was obtained. A numerical model was developed based on physical and chemical laws, and it was employed to simulate two-dimensional crucial parameters (e.g., temperature, Hydrogen concentration, and current density) distribution across the 1 mxl m single MCFC with the same active components in three different flow manifolds. The simulation result shows that the local temperature of cross-flow is the highest among the three flow manifolds, located near the intersection of anode gas outlet and cathode gas outlet, so a hot point is produced easily in cross-flow; the counter-flow electrochemical reaction is so intense that the local current density distribution is non-consistent severely; the local temperature and current density distribution of co-flow are both consistent.关键词
熔融碳酸盐燃料电池/数值模拟/流动型式/固定电压法Key words
molten carbonate fuel cells(MCFC)/numerical analysis/flow manifold/constant voltage分类
信息技术与安全科学引用本文复制引用
缑志斌,许世森,程健..三种流动型式的熔融碳酸盐燃料电池单体性能数值分析[J].中国电机工程学报,2011,31(29):67-73,7.基金项目
中国华能集团绿色煤电专项项N(HNKJ06-H01). ()