运行工况对PEMFC性能与水含量的影响分析

doi:10.19562/j.chinasae.qcgc.2022.03.009

Abstract

Abstract:

In this paper， the visualized test platform of single fuel cell and the water balance model are used to investigate the relationship between the performance and the water content of proton exchange membrane fuel cell and their influencing factors. Firstly， the water balance model of fuel cell is given. Then， the visualized test platform for single fuel cell is constructed. Finally， the effects of the temperature and humidity of inlet air and the stoichiometric ratio of hydrogen and air on the electrochemical impedance spectroscopy， voltage and water content of fuel cell are tested with their influencing factors analyzed.

Key words: PEMFC, water balance model, visualized test platform, water content, performance

Xin Zhao,Guang Chen,Yanyi Zhang. An Analysis on the Effects of Operating Conditions on the Performance and Water Content of PEMFC[J].Automotive Engineering, 2022, 44(3): 379-384.

Figures/Tables 13

References 17

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编号	进气温度/℃	进气湿度/%	氢气化学计量比	空气化学计量比
Case_1	45	100	1.5	2.5
Case_2	65
Case_3	85
Case_4	75	20
Case_5		50
Case_6		80
Case_7	75	100	2.0
Case_8			1.2
Case_9			1.05
Case_10	75	100	1.5	3.5
Case_11				3.0
Case_12				2.0

进气温度/℃	R₁/（Ω·cm²）	R₂/（Ω·cm²）	R₃/（Ω·cm²）
45	0.002 52	0.012 23	0.006 14
65	0.002 44	0.008 53	0.003 52
85	0.002 38	0.008 49	0.004 29

进气湿度/%	R₁/（Ω·cm²）	R₂/（Ω·cm²）	R₃/（Ω·cm²）
20	0.006 09	0.014 31	0.798 34
50	0.003 72	0.008 48	0.002 98
80	0.002 50	0.007 63	0.002 92

氢气化学计量比	R₁/（Ω·cm²）	R₂/（Ω·cm²）	R₃/（Ω·cm²）
1.05	0.002 43	0.006 05	0.001 95
1.2	0.002 44	0.005 78	0.001 64
2.0	0.002 48	0.005 76	0.001 47

空气化学计量比	R₁/（Ω·cm²）	R₂/（Ω·cm²）	R₃/（Ω·cm²）
2.0	0.002 37	0.008 55	0.004 19
3.0	0.002 46	0.005 33	0.000 94
3.5	0.002 49	0.005 05	0.000 64

An Analysis on the Effects of Operating Conditions on the Performance and Water Content of PEMFC

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