摘要
质子交换膜燃料电池流场板结构对燃料电池性能有着重要的影响。在保证模型尺寸和结构尺寸的前提下,建立了5种不同渐变型单直流道质子交换膜燃料电池的三维模型,并用有限控制体法对模型进行了求解。结果表明,当流道宽度不变、进口高度相同的情况下,提高流道的渐变率,即减小流道出口的高度,可以提高电池的浓差扩散,故有利于提高电池的性能,但提高的幅度也越来越小。
The structure of flow field has significant influence on the performance of proton exchange membrane（PEM） fuel cell.Five PEMFC models with different gradually-varied flow field were created and solved by means of finite control volume method.The results show that,when the width of the channel is fixed,the concentration diffusion will be improved with the increase of the flow field depth＇s gradually-varied ration,so the performance of the fuel cell can be increased,but the increment is diminishing and finally tends to a stable amount.
出处
《电源技术》
CAS
CSCD
北大核心
2010年第7期664-666,共3页
Chinese Journal of Power Sources
关键词
质子交换膜燃料电池
流场
渐变型
模拟
proton exchange membrane fuel cell
flow field
gradually-varied
modeling
