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质子交换膜燃料电池的性能受其流场结构及操作条件的影响显著。创新性地基于鸟腹部流线设计，结合三通道蛇形流场，构建了一种三通道仿生波浪形流场结构，并采用阴/阳极逆流布置。通过仿真研究，对比分析仿生波浪形流场与传统蛇形流场的性能差异，并探讨操作条件(包括阳极/阴极进气湿度和电池温度)对电池性能的影响。研究结果显示：在电流密度为1.8 A/cm2时，仿生波浪形流场相较于三通道蛇形流场，输出电压提升1.78%,总输出功率提升1.645%,但压降增加4.6倍。此外，操作条件对电池性能有显著影响：阳极进气湿度在低或高湿度下会导致性能下降，而在中等湿度下性能最佳；阴极进气湿度在中高湿度下对性能影响较小，但在低湿度下性能下降明显。因此，在实际应用中，建议采用中等阳极进气湿度和中高阴极进气湿度，以优化电池性能。
Abstract：The performance of proton exchange membrane fuel cells is significantly influenced by their flow field structure and operating conditions. A novel three-channel bionic wavy flow field structure was designed based on the streamlined shape of a bird′s abdomen, combined with a three-channel serpentine flow field, and arranged with counter-flow cathode/anode. Through simulation studies, the performance differences between the bionic wavy flow field and the traditional serpentine flow field were compared and analyzed, and the effects of operating conditions(including anode/cathode inlet humidity and cell temperature) on cell performance were investigated. The results show that at a current density of 1.8 A/cm2, the bionic wavy flow field, compared to the three-channel serpentine flow field, increases the output voltage by 1.78% and the total output power by 1.645%, but the pressure drop increases by 4.6 times. Additionally, operating conditions have a significant impact on cell performance: anode inlet humidity at low or high levels leads to performance degradation, while medium humidity yields the best performance; cathode inlet humidity has a minor effect on performance at medium to high levels, but performance declines significantly at low humidity. Therefore, in practical applications, it is recommended to use medium anode inlet humidity, medium to high cathode inlet humidity to optimize cell performance.
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基本信息:
中图分类号:TM911.4
引用信息:
[1]谢旭良,杨蕊,陈昊.质子交换膜燃料电池仿生波浪形三通道蛇形流场性能研究[J].化学工程,2026,54(03):51-56.
基金信息:
国家自然科学基金地区科学基金项目(52366019)
2026-03-15
2026-03-15