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Numerical Investigation of the Performance and Transport Phenomena of a Proton-Exchange Membrane Fuel Cell with a Wavelike Gas Flow Channel Design

机译:具有波状气体流道设计的质子交换膜燃料电池性能和输运现象的数值研究

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This article investigates the performance of a proton-exchange membrane fuel cell (PEMFC) with a novel wavelike gas flow channel. Numerical simulations have been performed to investigate the effect of the wavelike channel profile on the gas flow characteristics, temperature distribution, electrochemical reaction efficiency, and electrical performance. The simulation results show that compared to a conventional straight gas flow channel, the wavelike channel increases the fuel flow velocity, enhances the transport through the porous layer, and improves the temperature distribution. As a result, the PEMFC has improved fuel utilization efficiency and superior heat-transfer characteristics. Furthermore, the results show that the wavelike gas flow channel yields a higher PEMFC output voltage and improves the maximum power density by approximately 32.5%.
机译:本文研究具有新型波状气体流动通道的质子交换膜燃料电池(PEMFC)的性能。已经进行了数值模拟以研究波状通道轮廓对气体流动特性,温度分布,电化学反应效率和电性能的影响。仿真结果表明,与常规的直通气流通道相比,波浪形通道增加了燃料流速,增强了通过多孔层的传输,并改善了温度分布。结果,PEMFC具有改善的燃料利用效率和优异的热传递特性。此外,结果表明,波状气流通道可产生更高的PEMFC输出电压,并将最大功率密度提高约32.5%。

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