Title of article :
The effect of increasing the multiplicity of flow felds contact surface on the performance of PEM fuel cell
Author/Authors :
Ramin, Farzin Faculty of Mechanical Engineering - University of Tabriz , Baheri Islami, Sima Faculty of Mechanical Engineering - University of Tabriz , Hossainpour, Siamak Mechanical Engineering Faculty - Sahand University of Technology, Tabriz
Abstract :
In this paper, three innovative 3-D geometries for fow felds of cathode and anode
have been developed to investigate the comparative impact of increasing the
multiplicity of the involved anode-cathode channel surface contact on the ef ciency
of electrochemical reaction via the same membrane electrode assembly (MEA)
active area. In the introduced new models, each anode channel includes two, three
and four cathodes while the convectional model include a one to one connection.
The governing equations consist of mass, momentum and energy conservation. In
addition, the species transport and the electric/ionic elds were solved numerically
using the nite volume method under the assumptions of steady state and nonisothermal
uid ow. Simulation results revealed that increasing the multiplicity of
the anode-cathode involved surface of reactants channel leads to current and power
density enhancement due to the improved opportunity of reactants penetration and
less concentration losses. Also, a considerable reduction of mono-cell volume size
and costs for the new models in comparison with the base design was achieved.
Keywords :
Solid oxide fuel cells , PEM Fuel cell , Power density , Reactive area , Electrochemical reaction
Journal title :
Astroparticle Physics
