摘要
采用计算流体力学软件Fluent模拟分析了一个活性面积达到近50cm^2的单电池,探讨了冷却水对电池内膜平面上温度分布的影响。分析表明大部分冷却水温度偏低,冷却水的换热效果并不好;在高电流密度条件下,流向与反应气体相同的冷却水较能改善电池内温度分布状况;提高冷却水的总:充速和降低进口温度对电池内温度分布的改善作用不好。
This paper modeled a single cell with active area of nearly 50 cm^2 by the CFD software of Fluent and discussed the influence of cooling water on the temperature distribution of membrane. The results show that most of the cooling water's temperature is low, the effect of heat exchange is bad; At the high current density, cooling water with the same flow direction of reactant gas has better effect on improving temperature distribution in the fuel cell. Increasing overall flow velocity and depressing the inlet temperature of cooling water has little effect on improving temperature distribution
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2006年第E02期489-494,共6页
Journal of Wuhan University of Technology
基金
教育部高等学校博士学科点专项科研基金(20030497012.20050497014).
关键词
质子交换膜
燃料电池
温度分布
冷却水
模拟
proton exchange membrane
fuel cell
temperature distribution
cooling water
modeling