【摘要】 在质子交换膜燃料电池中,流场的设计对电池的性能有重大影响。基于计算流体力学软件Fluent6.3和Gambit2.2,通过比较不同流道横截面形式、调节流场通道深度等结构参数,建立了氢-空质子交换膜燃料电池3D数学模型,并进行了模拟和性能优化。模拟结果表明,燕尾形流场截面的综合性能优于其他截面形状流场的综合性能;在一定范围内,截面的深度对燃料电池的性能有较大影响。更多还原

【Abstract】 In PEMFC,the design of flow field has an important effect on the cell performance.In this paper,a three-dimensional mathematic model on hydrogen-atmosphere PEMFC,comparing with different channel cross sections and adjusting channel depth,was proposed which based on a computational hydrodynamics software Fluent 6.3 and Gambit 2.2.Then this model was simulated and optimized.Simulation results showed that the performance of cell adopting swallow-tailed shape was superior to that of cell adopting other shapes.In a certain range,cross section depth had a large effct on the PEMFC performance.更多还原