PEMFC组合流场结构设计与性能优化模拟研究

付丽荣; 林华栋; 宫鹏华; 刘进一; 肖明伟

doi:doi:10.19912/j.0254-0096.tynxb.2024-1029

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PEMFC组合流场结构设计与性能优化模拟研究

更新时间：2025-12-17

- PEMFC组合流场结构设计与性能优化模拟研究
- Issue 10, Pages: 147-153(2025)
- 作者机构：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1029
  CLC： M911
- Published Online：31 October 2025，
  
  Published：31 October 2025
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付丽荣, 林华栋, 宫鹏华, et al. PEMFC组合流场结构设计与性能优化模拟研究[J]. 2025, (10): 147-153.
DOI：

付丽荣, 林华栋, 宫鹏华, et al. PEMFC组合流场结构设计与性能优化模拟研究[J]. 2025, (10): 147-153. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1029.

摘要

该研究建立质子交换膜燃料电池组合流场的三维模型

并探究流场的操作条件和几何参数对电池性能的影响。结果表明：斜坡流场的氧气和电流密度分布较平行和蛇形流场更均匀

电池输出功率密度分别比蛇形流场和平行流场提升了7.43%和12.05%。提高工作压力可增加流道的氧气浓度进而提升电池输出性能

而温度对电池性能的影响受流场结构的制约较小。当流场的流道数量过少会造成氧气分布不均从而降低电池输出性能

提高流道肋宽比能提升输出性能

但流道宽高比的提高对性能影响较小。

Abstract

This study developed a three-dimensional model of a composite flow field in proton exchange membrane fuel cells （PEMFCs） to investigate the effects of operating conditions and geometric parameters of the flow field on cell performance. The findings reveal that oxygen distribution and current density in the inclined flow field are more uniform compared to the parallel and serpentine flow fields. The cell’s power density output is improved by 7.43% and 12.05% in the inclined flow field relative to the serpentine and parallel configurations

respectively. Higher operating pressures increase oxygen concentration within the channels

leading to enhanced cell output performance

while temperature shows a relatively minor influence due to the structural limitations of the flow field. A reduced number of channels in the flow field leads to uneven oxygen distribution

thereby diminishing the cell's performance. Increasing the rib-to-channel width ratio improves output performance

while changes in the channel aspect ratio show minimal impact on performance.

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references

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