An analytical model for the transverse permeability of gas diffusion layer with electrical double layer effects in proton exchange membrane fuel cells |
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| Authors: | Mingchao Liang Yaming Liu Boqi Xiao Shanshan Yang Zhankui Wang Hongmei Han |
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| Affiliation: | 1. School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang, 453003, China;2. School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, 430205, China;3. College of Science, Three Gorges University, Yichang, 443002, China;4. School of Mechanical and Electrical Engineering, Sanming University, Sanming, 365004, China |
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| Abstract: | 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. |
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| Keywords: | Gas diffusion layer Proton exchange membrane fuel cell Permeability Electrical double layer Zeta potential |
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