RETRACTED: Numerical study the effect of downward and upward deflected membrane electrode assembly on species distribution in Polymer Electrolyte Membrane Fuel Cell with experimental validations (Retracted article. See vol. 89, pg. 468, 2016)

This article presents the results of numerical study with experimental validation, using computational fluid dynamics (CFD) analysis to investigate the species distribution in proton exchange membrane fuel cells (PEMFCs) with deflected membrane electrode assembly (MEA). These new geometry were examined while employing an empirical setup and a three-dimensional, single-phase, non-isothermal and parallel flow for model of a PEM fuel cell. This research has concentrated on the effect of new kind of deflected MEA while maintaining the same inlet and boundary condition. Initially the CFD result of all case study's polarization curve are validated with the experimental data which shown good concord and then studied deflected and flatted MEA at cathode and anode side. Investigation showed better results for the PEMFC with having both flatted and deflected MEA at cathode side than base model, because of having more reacting area, uniform distribution of reactants, better oxygen transportation to the GDL at shoulder region and having less Cathode Over potential (COP) which is the main losses is regard to it. To verifying all of results the polarization curve for base case is validated with Wang et al. data. (C) 2014 Energy Institute. Published by Elsevier Ltd. All rights reserved.