氢氧质子交换膜燃料电池阴极流道设计模型  

Model for design of cathode channels for H_2/O_2 proton exchange membrane fuel cells

作　　者：王红星[1] 王宇新[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《化工学报》2006年第1期97-103,共7页CIESC Journal

基　　金：天津市科技发展计划项目(033183111);国家重点基础研究发展规划项目(G20000264).~~

摘　　要：为了优化氢氧质子交换膜燃料电池阴极的气体流道,建立了沿流道长度和深度方向的气体流道设计模型.模型考虑了阴极气体在流道中的动量传递、质量传递和电极反应等物理过程.将二维问题经积分均化后转化为较简单的一维问题,偏微分方程组转变为常微分方程组,使计算过程得以简化.以50cm长的流道为例,计算了沿流道方向的浓度、流速以及电流密度的分布.还利用此模型分析了各操作与设计参数如入口流速、流道深度、交换电流密度等对浓度、流速和电流密度分布的影响.A theoretical, along-the-channel model, electrode reactions of cathode gases were taken in cons for H2/O2 proton exchange membrane fuel cell. The this was implemented by solving the resultant ord shooting computational scheme, With this design tool designed. An analysis of the effects of main operat in which momentum transfer, mass transfer and ideration, was developed to design cathode channels 2-D problem was converted into 1-D problem, and nary differential equation with a straightforward , the height and length of the channel can be easily on and design parameters on the distributions of concentration, velocity and current density was conducted

关 键 词：气体流道 质子交换膜燃料电池 沿流道数学模型 

分 类 号：TM911.4[电气工程—电力电子与电力传动]