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http://dx.doi.org/10.9713/kcer.2016.54.6.847

Effects of 3D Flow-Channel Configurations on the Performance of PEMFC using Computational Fluid Dynamics  

Han, Kyoung-Ho (Department of Chemical Engineering, Kwangwoon University)
Yoon, Do Young (Department of Chemical Engineering, Kwangwoon University)
Publication Information
Korean Chemical Engineering Research / v.54, no.6, 2016 , pp. 847-853 More about this Journal
Abstract
Here has been examined a 3-dimensional computational fluid dynamics (CFD) modeling in order to investigate the performance analysis of proton exchange membrane (PEM) fuel cells with serpentine flow fields. The present CFD model considers the isothermal transport phenomena in a fuel cell involving mass, momentum transport, electrode kinetics, and potential fields. Co-current flow patterns for a PEMFC are considered for various geometries in the single straight cell. Current density distribution from the calculated distribution of oxygen and hydrogen mass fractions has been determined, where the activation overpotential has been also calculated within anode and cathode. CFD results showed that profiles differ from those simulations subjected to each the calculated activation overpotential. It is interesting that the present serpentine flow field shows the specific distribution of current density with respect to the aspect ratio of depth to width and the ratio of reaction area for various serpentine geometries. Simulation results were considered reasonable with the other CFD results reported in literature and global comparisons of the PEMFC model.
Keywords
3D CFD; PEMFC; Serpentine flow field; Current density distribution; Performance analysis;
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