Numerical analysis of 40 kW multistack fuel cell system featuring series-type active hydrogen recovery

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Applied Physics A Pub Date : 2025-05-09 DOI:10.1007/s00339-025-08554-3

Jenn-Kun Kuo, Satya Sekhar Bhogilla, Tzu-Hsiang Lin, Yi-Hung Liu, Jiří Ryšavý, Jakub Čespiva

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Abstract

MATLAB/Simulink simulations are performed to investigate and innovative the performance of a multistack fuel cell (MFC) system consisting of 1 ~ 4 10 kW fuel cells arranged in a series configuration. The system is equipped with a tail purge valve, fixed to vent impurities from the stack every 60 s, and an active hydrogen recovery system based on a mechanical compressor to recover the excess hydrogen from the exhaust stream and return it to the inlet side for re-use. The validity of the simulation model is confirmed by comparing the rated power output of the MFC system with that of a commercial fuel cell platform. The validated model is employed to evaluate the I-V response of the 10 kW, 20 kW, 30 kW and 40 kW MFC systems. The effects of the stack temperature on the output power are then investigated. It is shown that, for each MFC system, the maximum efficiency is obtained for stack temperatures in the range of 65–75 °C. Moreover, the system efficiency increases by approximately 7% as the cathode air pressure increases from 1.1 bar to 1.8 bar. Finally, the active hydrogen recovery ratios of the 20 kW, 30 kW and 40 kW MFC systems are found to be 14.1%, 11.8%, and 10.65%, respectively.

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40kw串联型活性氢回收多堆燃料电池系统的数值分析

采用MATLAB/Simulink仿真对由1 ~ 4个10kw燃料电池串联组成的多堆燃料电池（MFC）系统的性能进行了研究和改进。该系统配备了一个尾部吹扫阀，固定每60秒从堆中排出杂质，以及一个基于机械压缩机的主动氢气回收系统，用于从排气流中回收多余的氢气，并将其返回到进口侧进行再利用。通过将MFC系统的额定输出功率与商用燃料电池平台的额定输出功率进行比较，验证了仿真模型的有效性。利用验证的模型对10 kW、20 kW、30 kW和40 kW MFC系统的I-V响应进行了评估。研究了堆温对输出功率的影响。结果表明，对于每个MFC系统，在65-75°C的堆叠温度范围内获得最大效率。此外，当阴极气压从1.1 bar增加到1.8 bar时，系统效率提高了约7%。结果表明，20 kW、30 kW和40 kW MFC系统的有效氢气回收率分别为14.1%、11.8%和10.65%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Physics A 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.40%

发文量

964

审稿时长

38 days

期刊介绍： Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.