一种新的平面固体氧化物燃料电池热管理流场设计

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-05-08 DOI:10.1016/j.ijhydene.2025.04.463

Jiaxuan Wu , Jingjin Hu , Zhengkai Tu , Run Hu

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引用次数: 0

摘要

固体氧化物燃料电池（SOFC）被认为是氢基能源系统的一个有前途的解决方案，但其运行稳定性受到温度分布不均匀引起的热应力的影响。本文提出了一种新的流场结构——环形流场，并对其热性能和流动性能进行了分析。对三种典型流场进行了详细的建模和仿真。结果表明，与横流结构相比，最大温度梯度降低了50.86%。此外，还纳入了分支通道，并分析了不同分支通道宽度的影响。结果表明，1.5 mm的宽度最优地平衡了电化学性能和系统效率，降低了11.1%的泵功耗，同时提高了热性能。这种循环流场结构为提高SOFC耐久性和系统效率提供了一条显著途径。

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A novel flow field design for the thermal management in planar solid oxide fuel cell

Solid oxide fuel cell (SOFC) is recognized as a promising solution for hydrogen-based energy systems, yet its operational stability is hindered by thermal stress induced by uneven temperature distribution. In this study we propose a novel flow field configuration named the loop-flow field and analyze the thermal and flow performance. Detailed modeling and simulations are presented and compared with three typical flow fields. The results show that the maximum temperature gradient is reduced by 50.86 % compared to the cross-flow configuration. In addition, branch channels are incorporated and the influence of different branch channel widths is analyzed. The results reveal that the width of 1.5 mm optimally balances electrochemical performance and system efficiency, reducing pump power consumption by 11.1 % while simultaneously enhancing thermal performance. This loop-flow field configuration offers a notable pathway for enhancing SOFC durability and system efficiency.

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.