Performance Comparison Between Planar and Tubular-Shaped PEM Fuel Cells by Three-Dimensional Numerical Simulation

Fuel Cells ◽  
2003 ◽  
Vol 3 (12) ◽  
pp. 28-36 ◽  
Author(s):  
J.-F. Coursange ◽  
A. Hourri ◽  
J. Hamelin
Keyword(s):  
Numerical Simulation ◽  
Fuel Cells ◽  
Three Dimensional ◽  
Pem Fuel Cells ◽  
Performance Comparison

Three Dimensional Analysis of Transport and Reaction in Proton Exchange Membrane Fuel Cells

2000 ◽  
Author(s):  
Sukkee Um ◽  
C. Y. Wang
Keyword(s):  
Fuel Cells ◽  
Flow Field ◽  
Proton Exchange Membrane ◽  
Computational Study ◽  
Three Dimensional ◽  
Pem Fuel Cells ◽  
Proton Exchange ◽  
Serpentine Flow Field ◽  
Interdigitated Flow Field ◽  
Exchange Membrane

Abstract A three-dimensional computational study based on the finite volume method is carried out for proton exchange membrane (PEM) fuel cells with a Nation 117 membrane and an interdigitated flow field on the cathode. Emphasis is placed on obtaining a fundamental understanding of fully three-dimensional flow in the air cathode and how it impacts the transport and electrochemical reaction processes. For the first time, fully three-dimensional results of the flow structure, species profiles and current distribution are presented for PEM fuel cells with the interdigitated flow field. The model results show that forced convection induced by the interdigitated flow field in the backing layer substantially improves mass transport of oxygen to, and water removal from, the reaction zone thus leading to a higher cell current density as compared to that of the serpentine flow field. The computations also indicate a need to account for water condensation and ensuing gas-liquid two-phase flow and transport in the porous cathode at high current densities. The present computer model can be used as a design or diagnostic tool for fuel cell cathodes with complex structural flow fields.

Numerical simulation of condensate removal from gas channels of PEM fuel cells using corrugated walls

2017 ◽  
Vol 42 (4) ◽  
pp. 1664-1676 ◽  
Author(s):  
Mohammed El-Dosoky ◽  
Mahmoud Ahmed ◽  
Nasser Ashgriz
Keyword(s):  
Numerical Simulation ◽  
Fuel Cells ◽  
Pem Fuel Cells

Fluid Dynamic Investigation of Channel Design in High Temperature PEM Fuel Cells

2012 ◽  
Vol 9 (2) ◽  
Author(s):  
G. Falcucci ◽  
E. Jannelli ◽  
M. Minutillo ◽  
S. Ubertini
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Gas Flow ◽  
Fluid Dynamic ◽  
Polymer Electrolyte Membrane ◽  
Three Dimensional ◽  
Active Surface ◽  
Pem Fuel Cells ◽  
Pressure Losses ◽  
Electrolyte Membrane

In this paper we analyze the three-dimensional flow field in anode and cathode gas channels of polymer electrolyte membrane (PEM) fuel cells operating at high temperature (T >100 °C). Different gas flow channel designs (pin-type, parallel channels, comb-tipe and multiple serpentine), as well as different channel sections (squared, trapezoidal and rounded with different curvature radii) are evaluated in function of some relevant parameters. The analysis is performed accounting for overall pressure losses, gas distribution over the electrode area and residence time with focus on channel hydraulic diameter, active surface ratio, gas path. Differences with low temperature (LT) PEM fuel cell design are also adressed. The investigation is conducted by means of 3D-CFD softwares and the results of our simulations are compared to experimental data in literature.

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