An analytical model for the transverse permeability of gas diffusion layer with electrical double layer effects in proton exchange membrane fuel cells

被引：190
作者：
Liang, Mingchao [1 ]
Liu, Yaming [1 ]
Xiao, Boqi [2 ,4 ]
Yang, Shanshan [3 ]
Wang, Zhankui [1 ]
Han, Hongmei [1 ]
机构：
[1] Henan Inst Sci & Technol, Sch Mech & Elect Engn, Xinxiang 453003, Peoples R China
[2] Wuhan Inst Technol, Sch Mech & Elect Engn, Wuhan 430205, Hubei, Peoples R China
[3] Three Gorges Univ, Coll Sci, Yichang 443002, Peoples R China
[4] Sanming Univ, Sch Mech & Elect Engn, Sanming 365004, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 37期
基金：
中国国家自然科学基金;
关键词：
Gas diffusion layer; Proton exchange membrane fuel cell; Permeability; Electrical double layer; Zeta potential; POROUS FIBROUS MEDIA; FLOW-THROUGH; ELECTROKINETIC FLOW; CHARGED MICROSCALE; PERIODIC ARRAYS; SIMULATIONS; CHANNELS; POROSITY; FLUIDS;
D O I：
10.1016/j.ijhydene.2018.07.186
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
An analytical model is presented for the transverse permeability of gas diffusion layer (GDL) based on an ordered array of parallel charged circular cylinders at the steady state. The formula of calculating the permeability of the transverse direction is given by solving the fluid momentum equation in a unit cell. In the present approach, the proposed model is explicitly related to the porosity and fiber radius of fibrous porous media, the zeta potential, and the physical properties of the electrolyte solution. Besides, the effects of these parameters (the porosity, unit cell aspect ratio, fiber radius, and molar concentration) on the transverse permeability are discussed detailedly. The model predictions are compared with the previous studies in the available literature, and good agreement is found. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：17880 / 17888
页数：9
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