质子交换膜燃料电池阴极单相流压降模型及验证

李跃华; 裴普成; 吴子尧; 贾肖宁

doi:10.16511/j.cnki.qhdxxb.2018.22.007

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清华大学学报（自然科学版） ›› 2018, Vol. 58 ›› Issue (1) : 43-49. DOI: 10.16511/j.cnki.qhdxxb.2018.22.007

汽车工程

质子交换膜燃料电池阴极单相流压降模型及验证

李跃华, 裴普成, 吴子尧, 贾肖宁

作者信息 +

Verification of a cathode pressure drop model for single phase flow in a proton exchange membrane fuel cell

LI Yuehua, PEI Pucheng, WU Ziyao, JIA Xiaoning

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文章历史 +

摘要

燃料电池阴极单相流压降是进行阴极在线水管理的基准，已有研究缺少该压降的全工况模型。该文在156 W单片燃料电池上发现了阴极压降随电流、过量系数变化的二次方关系，并给出影响压降的5个参数：电流、过量系数、电池温度、进气压强以及进气湿度。提出了包括这些参数在内的流量二次方模型。通过分析各工况下模型系数与实验数据的对应关系得出模型与实验数据之间偏差小于10%。该模型可应用于蛇形流道或平行流道的所有电池堆，对在线水故障诊断具有一定的参考价值。

Abstract

The single phase flow pressure drop through the cathode in a proton exchange membrane fuel cell is an important benchmark for online water management. However, there are few models of this pressure drop applicable to all operating conditions. The cathode pressure drop is found here to be a quadratic function of the current and stoichiometric ratio using experimental data for a 156 W fuel cell. Five parameters influencing the pressure drop are the current, stoichiometric ratio, stack temperature, inlet pressure, and inlet relative humidity. A model for this pressure drop is then developed that agrees within 10% with experiment results. This model can guide online diagnosis of water related faults.

导出引用

李跃华, 裴普成, 吴子尧, 贾肖宁. 质子交换膜燃料电池阴极单相流压降模型及验证[J]. 清华大学学报（自然科学版）. 2018, 58(1): 43-49 https://doi.org/10.16511/j.cnki.qhdxxb.2018.22.007

LI Yuehua, PEI Pucheng, WU Ziyao, JIA Xiaoning. Verification of a cathode pressure drop model for single phase flow in a proton exchange membrane fuel cell[J]. Journal of Tsinghua University(Science and Technology). 2018, 58(1): 43-49 https://doi.org/10.16511/j.cnki.qhdxxb.2018.22.007

中图分类号： TK91

参考文献

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收稿日期	出版日期
2017-06-01	2018-01-15
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2018-01-15

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