期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 42, 期 12, 页码 8150-8165出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2017.01.184
关键词
Pore Network Model; Condensation-evaporation; Gas diffusion layer; Rib-channel; PEMFC; Continuum - PNM coupled model
资金
- European Union's Seventh Framework Programme for the Fuel Cells and Hydrogen Joint Technology Initiative [303452]
A model of the cathode side of a Proton Exchange Membrane Fuel Cell coupling the transfers in the GDL with the phenomena taking place in the cathode catalyst layer and the protonic transport in the membrane is presented. This model combines the efficiency of pore network models to simulate the liquid water formation in the fibrous substrate of the gas diffusion layer (GDL) and the simplicity of a continuum approach in the micro-porous layer (MPL). The model allows simulating the liquid pattern inside the cathode GDL taking into account condensation and evaporation phenomena under the assumption that the water produced by the electro-chemical reactions enters the MPL in vapor form from the catalyst layer. Results show the importance of the coupling between the transfers within the various layers, especially when liquid water forms as the result of condensation in the region of the GDL fibrous substrate located below the rib. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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