质子交换膜燃料电池希尔伯特分形流道的设计和工作性能研究

Design and Performance of Hilbert Channels of Proton Exchange Membrane Fuel Cell

质子交换膜燃料电池是一种以氢气为燃料,将化学能直接转换成电能的装置。本文研究了希尔伯特流道的设计方法,并通过数值计算和实验测试,对比分析了单希尔伯特、复合希尔伯特流道与传统的平行流道和蛇形流道在水分分布、内部压降、温度影响以及燃料电池的输出电流的关系。研究表明,希尔伯特流道,尤其是复合希尔伯特流道适合作为燃料电池的流道,可以获得良好的工作性能。

Proton exchange membrane （PEM） fuel cell can directly convert electrochemical energy into electricity, using hydrogen as fuel. The paper studies the design of Hilbert channels. And through numerical calculation and experimental testing, single and complex Hilbert channels are compared with traditional parallel and serpentine channels in terms of water distribution, inside pressure drop, temperature effect and fuel cell output current. The results dem- onstrate that Hilbert channels, especially complex Hilbert channels, are adaptable to fuel cell for good working performance.