Study on Water Management Performance of Proton Exchange Membrane Fuel Cells Based on Segmented Flow Field Regulation

CHEN Chengdai; LIN Tao; HAN Fengqin

doi:10.11949/0438-1157.20260424

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Study on Water Management Performance of Proton Exchange Membrane Fuel Cells Based on Segmented Flow Field Regulation

更新时间：2026-05-18

- Study on Water Management Performance of Proton Exchange Membrane Fuel Cells Based on Segmented Flow Field Regulation
- CIESC Journal (2026)
- 作者机构：
  
  1.广州城市理工学院电气工程学院，广东广州 510800
  2.广东省智能微电网多能协同控制工程技术研究中心，广东广州 510800
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20260424
  CLC： TK91
- Received：29 March 2026，
  
  Revised：2026-05-11，
  
  Accepted：12 May 2026，
- 稿件说明：
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CHEN Chengdai, LIN Tao, HAN Fengqin. Study on Water Management Performance of Proton Exchange Membrane Fuel Cells Based on Segmented Flow Field Regulation[J/OL]. CIESC Journal, 2026.
DOI：

CHEN Chengdai, LIN Tao, HAN Fengqin. Study on Water Management Performance of Proton Exchange Membrane Fuel Cells Based on Segmented Flow Field Regulation[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260424.

摘要

针对质子交换膜燃料电池阴极水淹与传质不均问题，本文提出一种阴极分区流场，通过局部补气实现上游和下游水、气传输的分区调控。数值模拟研究了平行、U型与分区的三种流场的输出性能，探究了阴极化学计量比及分区湿度比对水传输效率的影响。结果表明：得益于分区流场水气调控能力，分区流场较平行流场的功率密度提升10.1%；在1.5~3.5化学计量比内，分区流场输出性能明显提升，在低计量比下优势更显著。为了优化流场水管理平衡，分区湿度比为60%:30%时，可实现上游水淹缓解与加速下游排水，使电流密度进一步提升12.9%。研究验证了分区流场对水、气协同优化的灵活调控能力。

Abstract

Addressing the issues of cathode flooding and uneven mass transfer in proton exchange membrane fuel cells

this paper proposes a segmented cathode flow field that enables regional regulation of water and gas transport in the upstream and downstream sections through local air supplementation. Numerical simulations are conducted to investigate the output performance of three flow field configurations—parallel

U-shaped

and segmented—and to explore the effects of cathode stoichiometric ratio and segmented humidity ratio on water transport efficiency. The results show that

owing to the water and gas regulation capability of the segmented flow field

its power density is 10.1% higher than that of the parallel flow field. Within the stoichiometric ratio range of 1.5 to 3.5

the segmented flow field exhibits significantly improved output performance

with the advantage being more pronounced at low stoichiometric ratios. To optimize water management balance in the flow field

a segmented humidity ratio of 60%:30% alleviates upstream flooding while accelerating downstream water removal

further increasing current density by 12.9%. The study validates the flexible regulation capability of the segmented flow field for synergistic water and gas optimization.

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references

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