非均匀流道PEMFC传质模拟与性能研究

王乃潇; 程友良; 丁瑞; 樊小朝

doi:doi:10.19912/j.0254-0096.tynxb.2024-1062

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非均匀流道PEMFC传质模拟与性能研究

更新时间：2025-12-17

- 非均匀流道PEMFC传质模拟与性能研究
- Issue 10, Pages: 173-179(2025)
- 作者机构：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1062
  CLC： M911
- Published Online：31 October 2025，
  
  Published：31 October 2025
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王乃潇, 程友良, 丁瑞, et al. 非均匀流道PEMFC传质模拟与性能研究[J]. 2025, (10): 173-179.
DOI：

王乃潇, 程友良, 丁瑞, et al. 非均匀流道PEMFC传质模拟与性能研究[J]. 2025, (10): 173-179. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1062.

摘要

在传统蛇形流道的基础上

提出交变式、渐变式、喇叭式及分散式等非均匀样式的流道结构

通过建立等温、稳态质子交换膜燃料电池（PEMFC）三维仿真模型

分析非均匀流道对PEMFC传质及输出性能的影响。结果表明

相比普通蛇形流道

非均匀流道可有效改善流道内反应气体及产物的输运与分布

强化电化学反应过程

具有更高的膜电流密度

且可进一步平衡输运性能与压力损失匹配

有效提高PEMFC能量利用效率。其中

多样性分散流道（MD-Ⅵ）使PEMFC峰值电流密度提高10.2%

峰值功率密度提高14.2%

非均匀设计有望为PEMFC流道结构创新及优化提供更多思路。

Abstract

Based on the traditional serpentine flow channel

several non-uniform flow channel structures with alternating

gradient

trumpet

and dispersed types were proposed in this paper. By establishing a three-dimensional isothermal steady-state PEMFC simulation model

the effects of non-uniform flow channels on the mass transfer characteristics and output performance of PEMFCs were analyzed. The results show that compared to the conventional serpentine flow channel

non-uniform designs can effectively improve the transport and distribution of reactant gases and products within the flow channel

enhance the electrochemical reaction process

and achieve higher membrane current densities. Furthermore

these designs can better balance transport performance and pressure loss matching

effectively improving the energy utilization efficiency of PEMFCs. Specifically

the MD-Ⅵ flow channel increases the peak current density of PEMFCs by 10.2% and the peak power density by 14.2%. The non-uniform designs are expected to provide more ideas for the innovation and optimization of PEMFC flow channel structures.

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references

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