EFFECT OF COMMON CHANNEL STRUCTURE ON FLOW DISTRIBUTION IN FUEL CELLS

Zhang Beibei; Xue Xueliang; Liu Feng; Zheng Jun

doi:10.19912/j.0254-0096.tynxb.2024-0414

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (7) : 516-520. DOI: 10.19912/j.0254-0096.tynxb.2024-0414

Special Topics of Academic Papers at the 81th Annual Meeting of the China Association for Science and Technology

EFFECT OF COMMON CHANNEL STRUCTURE ON FLOW DISTRIBUTION IN FUEL CELLS

Zhang Beibei, Xue Xueliang, Liu Feng, Zheng Jun

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Abstract

A three-dimensional model of high-power fuel cell stacks is developed in this paper to numerically investigate the effects of the length （L） and width （D） of the common channel, channel area, and the inlet-outlet area ratio on gas flow distribution of the stacks. The results indicate that increasing the length and width of the common channel contributes to improving the uniformity of gas distribution. increasing the area of the common channel also significantly improves the flow distribution uniformity of the fuel cell stack. On the other hand, decreasing the area ratio between the inlet and outlet is conducive to reducing the pressure difference between the inlet and outlet common channels, which improves the flow distribution of the stack and reduces the pressure drop of the stack.

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PEMFC / turbulence models / porous materials / flow structure / computational fluid dynamics

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Zhang Beibei, Xue Xueliang, Liu Feng, Zheng Jun. EFFECT OF COMMON CHANNEL STRUCTURE ON FLOW DISTRIBUTION IN FUEL CELLS[J]. Acta Energiae Solaris Sinica. 2025, 46(7): 516-520 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0414

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