质子交换膜燃料电池动态响应性能实验研究  

Experimental Study on the Dynamic Performance of a Proton Exchange Membrane Fuel Cell

作　　者：曹涛锋[1] 丁靖[1] 母玉同[1] 何雅玲[1] 陶文铨[1] 

机构地区：[1]西安交通大学能源与动力工程学院,热流科学与工程教育部重点实验室,西安710049

出　　处：《工程热物理学报》2016年第4期835-839,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金重点项目(No.51136004)

摘　　要：本文实验研究了质子交换膜燃料电池负载变化时的动态性能,分析了氧气计量比流量和流场板结构的影响。结果表明,在本文的操作条件下,燃料电池动态响应能力的控制因素为质子交换膜水含量及液态水传递过程。随着氧气计量比流量的增加,电池性能及动态响应能力提高。采用不同流场板结构时,在输出电流较小的运行区间,平行流场板电池性能较好,随着平行流道数目减少,电池性能逐渐变差。The dynamic performance of a single PEM fuel cell under load change condition is experimentally studied and the effect of oxygen stoichiometric flow rate and flow plate structure are analyzed.From the experiment results,it is found that,under the operating conditions in this paper,the control factors of cell dynamic performance are the membrane water content and liquid water transport process.The dynamic performance of fuel cell is increased with the increase of oxygen stoichiometric flow rate.For different flow plates studied in this paper,a relative better cell performance is found at small current density when parallel flow plate is used,and with the decrease of parallel channel number,the performance of the fuel cell is gradually decreased.

关 键 词：质子交换膜燃料电池 动态性能 流场板设计 

分 类 号：TK121[动力工程及工程热物理—工程热物理]