质子交换膜燃料电池流道尺寸的数值模拟

doi:10.16039/j.cnki.cn22-1249.2020.03.010

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摘要

为了研究流道尺寸对质子交换膜燃料电池性能的影响，通过多物理场直接耦合分析软件COMSOL，建立了质子交换膜燃料电池三维模型。分析了流道宽度不变，流道宽度与脊宽度之比分别为1:1、1:2、1:3时对电池性能的影响，验证了建立模型的有效性与可靠性；进一步研究当脊宽度不变，流道宽度与脊宽度之比分别为1:1、2:1、3:1，综合考虑了电流密度、阳极氢气浓度及阴极氧气浓度等因素的影响分析。研究发现：流道宽度和脊宽度之比为1:1是燃料电池较理想的尺寸比，并且脊宽度变化比流道宽度变化对电池性能的影响大。

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	孟庆然
	田爱华
	陈海伦
	刘金东

关键词: 直流道脊质子交换膜燃料电池电流密度氧气浓度

Abstract:

In order to study the influence of channel size on the performance of proton exchange membrane fuel cell (FEMFC), A three-dimensional model of proton exchange membrane fuel cell was established by COMSOL. The influence on fuel cell performance was analyzed when the ratio of channel width to ridge width is 1:1, 1:2 and 1:3, respectively, and the validity and reliability of the model was verified. Further study shows that when the ridge width remains unchanged, the ratio of the channel width to the ridge width is 1:1, 2:1, and 3:1, respectively. The influences of current density, hydrogen concentration at anode and oxygen concentration at cathode were analyzed. It is found that which is the best size ratio of fuel cell of channel width to ridge width is 1:1, and the ridge width has more influence on the fuel cell performance than the channel width.

Key words: channel ridge proton exchange membrane fuel cell current density oxygen concentrations

出版日期: 2020-03-25 发布日期: 2020-03-25 整期出版日期: 2020-03-25

ZTFLH:

TM911.4

引用本文:

孟庆然, 田爱华, 陈海伦, 刘金东. 质子交换膜燃料电池流道尺寸的数值模拟 [J]. 吉林化工学院学报, 2020, 37(3): 48-52.
MENG Qingran, TIAN Aihua, CHEN Hailun, LIU Jindong. Numerical Simulation of Flow Channel Size of Proton Exchange Membrane Fuel Cell . Journal of Jilin Institute of Chemical Technology, 2020, 37(3): 48-52.

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http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2020.03.010 或 http://xuebao.jlict.edu.cn/CN/Y2020/V37/I3/48

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