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Arabian Journal for Science and Engineering : Volume 37, Issue 7, October 2012

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Arabian Journal for Science and Engineering : Volume 36

Numerical Simulation and Experimental Comparison of Channel Geometry on Performance of a PEM Fuel Cell

Content Provider	Springer Nature Link
Author	Khazaee, Iman Ghazikhani, Mohsen
Copyright Year	2012
Abstract	A complete three-dimensional model for proton exchange membrane (PEM) fuel cells is used to investigate the effect of the channel depth on the performance of the straight flow field at different stoichiometries of air. Therefore, there is a complete cell model that includes all the parts of the PEM fuel cell, flow channels, gas diffusion electrodes, catalyst layers and the membrane. Coupled transport and electrochemical kinetics equations are solved in a single domain; therefore, no interfacial boundary condition is required at the internal boundaries between cell components. This computational fluid dynamics code is used as the direct problem solver, intended to simulate the three-dimensional mass, momentum and species transport phenomena, as well as the electron- and proton-transfer process taking place in a PEMFC. The results show that the predicted polarization curves are in good agreement with the experimental data, and a high performance was observed at the channel depth of 1 mm for the cathode and 1.5 mm for the anode. Furthermore, the results show that the increase of the stoichiometry of air can enhance the performance of the cell. Also, it is observed that the current density distribution is more uniform for channel depth 1 mm for anode and 1.5 mm for cathode and for channel depth 1.5 mm for anode and 1 mm for cathode than the other two designs, and by moving in the channel, mole fraction of oxygen decreases due to consumption.
Starting Page	2297
Ending Page	2309
Page Count	13
File Format	PDF
ISSN	13198025
Journal	Arabian Journal for Science and Engineering
Volume Number	37
Issue Number	8
e-ISSN	21914281
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-05-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PEM fuel cell Channel depth Numerical modeling Cell performance Polarization Current density Engineering Science
Content Type	Text
Resource Type	Article

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