Optimization of the length-width-height combination of unit-channel PEMFC for maximizing volumetric power density

IF 6.2 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2026-03-01 Epub Date: 2025-12-24 DOI:10.1016/j.icheatmasstransfer.2025.110345

Jae Ho Lee , Seong Bae Pak , Il Seouk Park

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Abstract

This study aims to optimize the length, width, and height of a proton exchange membrane fuel cell (PEMFC) in order to maximize its power density within a limited volume. To this end, a regression model based on artificial neural network (ANN) was developed using 625 datasets obtained through thermofluidic-electrochemical coupled CFD analysis. The input variables for the regression model were the length, width, and height of the bipolar plate and flow channel, as well as the total volume of the PEMFC. The output parameters consisted of pressure drop and current density. It was revealed that PEMFCs with a same volume may exhibit a wide range of net power densities, from 424 to 2342 W/L. In this study, the optimized PEMFC demonstrated a 2.38-fold improvement in power density compared to a baseline model. In addition, this study analyzed the impact of the aspect ratio and cross-sectional area of the flow channel on the PEMFC performance.

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优化单元通道PEMFC的长宽高组合，使体积功率密度最大化

本研究旨在优化质子交换膜燃料电池（PEMFC）的长度、宽度和高度，以便在有限的体积内最大化其功率密度。为此，利用热流-电化学耦合CFD分析获得的625个数据集，建立了基于人工神经网络（ANN）的回归模型。回归模型的输入变量为双极板和流道的长度、宽度和高度，以及PEMFC的总体积。输出参数包括压降和电流密度。结果表明，具有相同体积的pemfc可以表现出广泛的净功率密度，从424到2342 W/L。在这项研究中，与基线模型相比，优化后的PEMFC的功率密度提高了2.38倍。此外，本研究还分析了流道宽高比和横截面积对PEMFC性能的影响。

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.