Effects of an MPL on water and thermal management in a PEMFC

被引：101
作者：
Nanadegani, Fereshteh Salimi [1 ,2 ]
Lay, Ebrahim Nemati [1 ]
Sunden, Bengt [2 ]
机构：
[1] Univ Kashan, Dept Chem Engn, Kashan, Iran
[2] Lund Univ, Dept Energy Sci, S-22100 Lund, Sweden
来源：
INTERNATIONAL JOURNAL OF ENERGY RESEARCH | 2019年 / 43卷 / 01期
关键词：
humidity; liquid saturation; microporous layer (MPL); PEMFC; thermal transport; water management; MICRO-POROUS LAYER; GAS-DIFFUSION LAYER; ELECTROLYTE FUEL-CELLS; MICROPOROUS LAYER; 2-PHASE TRANSPORT; FLOW CHANNEL; MEMBRANE; PERFORMANCE; HUMIDITY; CATHODE;
D O I：
10.1002/er.4262
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this study, the effects of adding a microporous layer (MPL) as well as the impact of its physical properties on polymer electrolyte fuel cell (PEMFC) performance with serpentine flow channels were investigated. In addition, numerical simulations were performed to reveal the effect of relative humidity and operating temperature. It is indicated that adding an extra between the gas diffusion layer (GDL) and catalyst layer (CL), a discontinuity in the liquid saturation shows up at their interface because of differences in the wetting properties of the layers. In addition, results show that a higher MPL porosity causes the liquid water saturation to decrease and the cell performance is improved. A larger MPL thickness reduces the cell performance. The effects of MPL on temperature distribution and thermal transport of the membrane prove that the MPL in addition to being a water management layer also improves the thermal management of the PEMFC.
引用
收藏
页码：274 / 296
页数：23
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