新型导流块流道PEMFC传质与电性能模拟研究

付丽荣; 唐艺文; 刘进一; 武生威; 肖明伟

doi:doi:10.19912/j.0254-0096.tynxb.2024-1843

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新型导流块流道PEMFC传质与电性能模拟研究

更新时间：2026-03-06

- 新型导流块流道PEMFC传质与电性能模拟研究
- Vol. 47, Issue 2, Pages: 776-781(2026)
- 作者机构：
- 作者简介：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1843
  CLC： TM911
- Online First：05 March 2026，
  
  Published：05 March 2026
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付丽荣, 唐艺文, 刘进一, et al. 新型导流块流道PEMFC传质与电性能模拟研究[J]. 2026, 47(2): 776-781.
DOI：

付丽荣, 唐艺文, 刘进一, et al. 新型导流块流道PEMFC传质与电性能模拟研究[J]. 2026, 47(2): 776-781. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1843.

摘要

通过在传统直流道中加入微导流块提出一种改良流道设计。将导流块在流道内交错布置

以实现对气流的扰动作用

引起对流传质并增强反应气体的质量传递;基于CFD方法

建立新型导流块流道质子换膜燃料电池（PEMFC）三维、稳态、非等温两相模型

研究PEMFC的输出性能、氧气质量分数以及气体流速

定量分析导流块数量对燃料电池性能的影响

并与传统直流道PEMFC进行对比

揭示了改良流道提升PEMFC输出性能的机理。其中含有8个导流块的改良流道与传统直流道相比

最大电流密度提升18.73%

燃料电池峰值功率密度提升8.46%

其净功率密度达到0.6208 W/cm2。

Abstract

This study develops an improved flow field design by incorporating micro-guide blocks into a traditional straight channel. The guide blocks are arranged in a staggered manner within the flow field to induce airflow disturbances

promoting convective mass transfer and enhancing the transport of reactant gases. A three-dimensional

steady-state

non-isothermal two-phase model of a PEMFC with the novel guide block flow field was developed using the CFD method. The study systematically investigated the output performance

oxygen mass fraction

and gas flow velocity of the fuel cell. The quantitative analysis was conducted to evaluate the impact of the number of guide blocks on fuel cell performance and compared the results with a traditional straight channel PEMFC.The results elucidate the mechanism by which the improved flow field enhances the output performance of the PEMFC. The flow channel with 8 flow-guide blocks

compared to the traditional straight flow channel

shows an 18.73% increase in maximum current density and an 8.46% improvement in the peak power density of the fuel cell

achieving a net power density of 0.6208 W/cm.

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references

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廉钰弢, 郑明刚. PEMFC圆形双极板径向流场环形肋板孔道研究[J]. 太阳能学报, 2022, 43(7): 9-15.

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HEIDARY H, KERMANI M J, DABIR B.Influences of bipolar plate channel blockages on PEM fuel cell performances[J]. Energy conversion and management, 2016, 124: 51-60.

HEIDARY H, KERMANI M J, PRASAD A K, et al.Numerical modelling of in-line and staggered blockages in parallel flowfield channels of PEM fuel cells[J]. International journal of hydrogen energy, 2017, 42(4): 2265-2277.

LI W K, ZHANG Q L, WANG C, et al.Experimental and numerical analysis of a three-dimensional flow field for PEMFCs[J]. Applied energy, 2017, 195: 278-288.

WANG L, HUSAR A, ZHOU T H, et al.A parametric study of PEM fuel cell performances[J]. International journal of hydrogen energy, 2003, 28(11): 1263-1272.

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