Numerical investigation of the effect of blocked gas flow field on PEM fuel cell performance

2021 ◽  
Author(s):  
S. N. Ozdemira ◽  
I. Taymaz
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Numerical Investigation ◽  
Gas Flow ◽  
Pem Fuel Cell ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Gas Flow Field

Improving PEM fuel cell performance and effective water removal by using a novel gas flow field

2016 ◽  
Vol 41 (4) ◽  
pp. 3023-3037 ◽  
Author(s):  
M. Rahimi-Esbo ◽  
A.A. Ranjbar ◽  
A. Ramiar ◽  
E. Alizadeh ◽  
M. Aghaee
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Gas Flow ◽  
Pem Fuel Cell ◽  
Cell Performance ◽  
Water Removal ◽  
Fuel Cell Performance ◽  
Effective Water ◽  
Gas Flow Field

New Radial-Based Flow Configurations for PEMFCs

2009 ◽  
Author(s):  
Isaac Perez-Raya ◽  
Abel Hernandez-Guerrero ◽  
Daniel Juarez-Robles ◽  
M. Ernesto Gutierrez-Rivera ◽  
J. C. Rubio-Arana
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Gas Flow ◽  
Previous Analysis ◽  
Pem Fuel Cell ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Flow Configurations ◽  
Gas Flow Field

This work presents the results of a study of a new radial configuration proposed for the gas flow field for a PEM fuel cell. The objective of this study is to understand the effects of this configuration on the fuel cell performance. The results are compared with the radial designs proposed in previous analysis. The proposed designs on this work show an improvement on the cell performance, with a better use of the reaction area compared with a flow free radial design. The results also show that the effect of channeling the flow inside these radial configurations helps to improve the fuel cell performance.

Reinforcement of PEM fuel cell performance through a novel flow field design with auxiliary channels and a hole array

AIChE Journal ◽  
2021 ◽  
Author(s):  
Yulin Wang ◽  
Xiaoai Wang ◽  
Gaojian Chen ◽  
Chao Chen ◽  
Xiaodong Wang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Pem Fuel Cell ◽  
Cell Performance ◽  
Hole Array ◽  
Fuel Cell Performance ◽  
Flow Field Design

EFFECTS OF FLOW FIELD CONFIGURATION OF POLAR PLATES ON PEM FUEL CELL PERFORMANCE

Equipment ◽  
2006 ◽  
Author(s):  
W. Q. Tao ◽  
Y. W. Tan ◽  
W. Jiang ◽  
Z. Y. Li ◽  
Y. L. He
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Pem Fuel Cell ◽  
Field Configuration ◽  
Cell Performance ◽  
Fuel Cell Performance

Comparative Analysis of Three Configurations Using Combinations Based on a Serpentine Geometry for the Species Distribution of a PEMFC

2012 ◽  
Author(s):  
V. Contreras-Elizarraras ◽  
A. Hernandez-Guerrero ◽  
F. Elizalde-Blancas ◽  
I. Perez-Raya ◽  
G. Gamboa-Orozco
Keyword(s):  
Comparative Analysis ◽  
Fuel Cell ◽  
Flow Field ◽  
Gas Flow ◽  
Current Density Distribution ◽  
Pem Fuel Cell ◽  
Electrochemical Reactions ◽  
Cfd Analysis ◽  
Water Production ◽  
Gas Flow Field

The present study shows the results obtained for a 3D CFD analysis for 3 configurations of the gas flow field of a PEM fuel cell: serpentine, interdigitated-serpentine and double serpentine. The objective of this study is to determine the current density distribution, the pressure drop, and the power generated by a PEM fuel cell operating under the proposed gas flow field. The model adopted for the analysis takes into account the effects of the electrochemical reactions that occur in the fuel cell, in this case the transport of electrons and protons, the species consumption, the water production in the catalyst and the water transport through the membrane. The results obtained for each configuration are compared to determine which configuration has the maximum performance.

Enhancement of PEM Fuel Cell Performance by Flow Control

2014 ◽  
Vol 804 ◽  
pp. 75-78 ◽  
Author(s):  
Vinh Nguyen Duy ◽  
Jung Koo Lee ◽  
Ki Won Park ◽  
Hyung Man Kim
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Pem Fuel Cell ◽  
Membrane Electrode Assembly ◽  
Cell Performance ◽  
Field Pattern ◽  
Battery Life ◽  
Membrane Electrode ◽  
Fuel Cell Performance ◽  
Serpentine Flow Field

Flow-field design affects directly to the PEM fuel cell performance. This study aims to stimulate the under-rib convection by adding sub-channels and by-passes to the conventional-advanced serpentine flow-field to improve the PEM fuel cell performance. The experimental results show that if reacting gases flow in the same direction as the neighboring main channels, the under-rib convection shows a flow from the main channels to the sub-channels makes progress in reducing pressure drop and enhancing uniform gas supply and water diffusion. Alternatively, if in the direction opposite to that of the neighboring main channels, the under-rib convection shows a flow from the inlet side towards the outlet side across the sub-channel as in the conventional serpentine channels. Analyses of the local transport phenomena in the cell suggest that the inlet by-pass supplies the reacting gases uniformly from the entrance into the sub-channels and the outlet by-pass enhances water removal. Novel serpentine flow-field pattern employing sub-channels and by-passes shows uniform current density and temperature distribution by uniformly supplying the reacting gas. Furthermore, performance improvement of around 20% is observed from the experimental performance evaluation. As a result, longer battery life is expected by reducing the mechanical stress of membrane electrode assembly.

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