高温PEM燃料电池的流场结构设计与优化  

Design and optimization of flow field for high-temperature PEM fuel cells

作　　者：杨洋[1] 陈壁峰[1] 肖金生[1,2] 张海宁[2] 潘牧[2] 

机构地区：[1]武汉理工大学汽车工程学院,湖北武汉430070 [2]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《电源技术》2011年第4期476-479,共4页Chinese Journal of Power Sources

基　　金：国家科技部"863"计划(2008AA050403);国家自然科学基金项目(50975214)

摘　　要：基于500 W高温PEM燃料电池堆,主要从流道级别和流场级别,通过理论计算提出了单电池的基准方案,运用计算流体动力学软件Fluent模拟了单电池的性能。在此方案基础上考虑不同流道结构参数的影响,提出了三个优化方案,并对其进行了比较。结果表明,常温燃料电池设计准则难于应用于高温燃料电池,对于95℃的质子交换膜燃料电池,采用流道宽度1 mm,岸宽1 mm,流道高度0.4 mm的平行直流道时电池性能最佳。The single-cell base case based on 500 W high-temperature PEM fuel cell was proposed by theoretical calculation from flow channel and flow field levels,and the performance of single cell was simulated by Fluent software.Three optimal programs were proposed considering the influence of different parameters of flow channel structure.The results show that： the design criteria of low-temperature PEM fuel cell is difficult to apply to the high-temperature PEM fuel cell.For 95 ℃ PEM fuel cell,it is the best to adopt parallel flow channel.An optimum 1 mm is found for both channel width and rib width,while the best value of channel height is 0.4 mm according to the numerical simulation.

关 键 词：高温PEM膜燃料电池 流场 设计 优化 

分 类 号：TM911[电气工程—电力电子与电力传动]