质子交换膜燃料电池新型离散船形肋结构点阵阴极流场研究

IF 10.1 1区工程技术 Q1 ENERGY & FUELS

Applied Energy Pub Date : 2025-05-13 DOI:10.1016/j.apenergy.2025.126096

Fazong Li , Hao Luo , Jianping Hu , Yonghua Cai , Tianqi Yang

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引用次数: 0

摘要

提出了一种用于质子交换膜燃料电池的点阵离散船形肋结构阴极流场。通过神经网络和遗传算法对肋下表面宽度Wr、通道宽度Wc、肋下表面弓形长度与肋下表面长度之比Tf /4L、肋下表面船尾长度与肋下表面长度之比Tb /4L等参数进行了优化。结果表明，与平行直流场相比，新型流场具有更宽的工作电流密度范围、更高的峰值净功率密度和更好的传质换热性能。与Tf /4L和Tb /4L相比，Wc和Wr对PEMFC性能的影响更为显著。优化后的点阵流场在0.4 V时的峰值净功率密度和电流密度比平行直流场分别提高了12.6%和10.2%。实验结果的增强幅度和趋势与数值模拟结果基本一致。

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Study on a novel dot array cathode flow field with discrete ship-shaped ribs structures for proton exchange membrane fuel cell

A novel dot array cathode flow field with discrete ship-shaped ribs structures for proton exchange membrane fuel cell was proposed. The parameters of width of the lower surface of rib W_r, width of the channel W_c, ratio of length of bow of the lower surface of rib to length of the lower surface of rib T_f /4L, and ratio of length of stern of the lower surface of rib to length of the lower surface of rib T_b /4L are optimized through neural network and genetic algorithm. Results indicate that, compared to a parallel straight flow field, the novel flow field features a broader working current density range, higher peak net power density, and better mass and heat transfer performance. Effects of W_c and W_r on PEMFC performance are more significant compared to T_f /4L and T_b /4L. The optimal dot array flow field shows an increase in peak net power density and current density at 0.4 V by 12.6 % and 10.2 %, respectively, compared to the parallel straight flow field. The enhancement magnitude and trend of the experimental results are generally consistent with the numerical simulation results.

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来源期刊

Applied Energy 工程技术-工程：化工

CiteScore

21.20

自引率

10.70%

发文量

1830

审稿时长

41 days

期刊介绍： Applied Energy serves as a platform for sharing innovations, research, development, and demonstrations in energy conversion, conservation, and sustainable energy systems. The journal covers topics such as optimal energy resource use, environmental pollutant mitigation, and energy process analysis. It welcomes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gap between research, development, and implementation. The journal addresses a wide spectrum of topics, including fossil and renewable energy technologies, energy economics, and environmental impacts. Applied Energy also explores modeling and forecasting, conservation strategies, and the social and economic implications of energy policies, including climate change mitigation. It is complemented by the open-access journal Advances in Applied Energy.