集成流场-气体扩散层一体化结构对质子交换膜燃料电池性能影响的数值分析
Numerical Analysis of the Impact of Integrated Flow Field-Gas Diffusion Layer Structure on the Performance of Proton Exchange Membrane Fuel Cells
杨书红 1张勇 1付博娜 1杨小龙1
作者信息
- 1. 大连交通大学材料科学与工程学院,大连 116028
- 折叠
摘要
集成流场-气体扩散层（GDL）一体化结构在提高燃料电池的气体传输性能和水管理能力方面拥有着巨大的潜力。本文建立三维等温多相模型，对比传统流场（case1）、阴极集成流场（case2）与阴阳极集成流场（case3）在相同外形尺寸与操作边界下的耦合行为。Case3在0.4V时将电流密度提升至1.244A/cm2，较case1与case2分别提高19.56%与2.86%。与传统流场相比，集成流场-气体扩散层一体化结构具有更均匀的反应物、更低的浓度极化损失。可为后续研究其对PEMFC造成的性能影响提供一定的思路。
Abstract
The integrated flow field-gas diffusion layer (GDL) structure has great potential in improving the gas transport performance and water management capability of fuel cells.In this paper, a three-dimensional isothermal multiphase model is established to compare the coupling behavior of the traditional flow field (case1), the cathode integrated flow field (case2), and the anode-cathode integrated flow field (case3) under the same external dimensions and operating boundaries. At 0.4V, case 3 increases the current density to 1.244A/cm2, which is 19.56% and 2.86% higher than case 1 and case 2, respectively. Compared with the traditional flow field, the integrated flow field-GDL structure has more uniform reactants and lower concentration polarization losses. This can provide certain ideas for subsequent studies on its performance impact on PEMFC.关键词
燃料电池/集成流场/气体扩散层Key words
fuel cell/integrated flow field/gas diffusion layer引用本文复制引用
杨书红,张勇,付博娜,杨小龙.集成流场-气体扩散层一体化结构对质子交换膜燃料电池性能影响的数值分析[EB/OL].(2026-02-06)[2026-02-08].http://www.paper.edu.cn/releasepaper/content/202602-43.学科分类
能源动力工业经济
评论