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Article

Numerical Modeling of PEM Fuel Cells Under Partially Hydrated Membrane Conditions

[+] Author and Article Information
Jun Cao

Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, Ontario M5B 2K3, Canada

Ned Djilali

IESVic and Department of Mechanical Engineering, University of Victoria, PO Box 3055, Victoria, B.C. V8W 3P6, Canada

J. Energy Resour. Technol 127(1), 26-36 (Mar 29, 2005) (11 pages) doi:10.1115/1.1825048 History: Received September 10, 2003; Revised July 31, 2004; Online March 29, 2005
Copyright © 2005 by ASME
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References

Figures

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Water flux distribution along membrane length on the cathode side (i=0.6 A/cm2, at relative humidity of 60%)
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Water flux distribution along membrane length on the cathode side (i=0.6 A/cm2, at relative humidity of 90%)
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Cell voltage and membrane potential loss behaviors at different relative humidities (i=0.4 A/cm2 )
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Membrane potential loss curves corresponding to three different relative humidities
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Polarization curves corresponding to different relative humidites
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Electric potential distribution in membrane corresponding to |i |=0.8 A/cm2 with source/sink terms switched on
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Water flux distribution along membrane length on the cathode side (i=0.4 A/cm2, at relative humidity of 60%)
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Water flux distribution along membrane length on the cathode side (i=0.4 A/cm2, at relative humidity of 90%)
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Schematic illustration of a fuel cell structure
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Computational domain and boundaries/interfaces
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Comparison between one- and two-dimensional water content results corresponding to |i |=0.8 A/cm2 with both thermal and pressure-drop effects turned off
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Water content distribution at constant pressure corresponding to |i |=0.8 A/cm2
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Water content distribution with pressure drop corresponding to |i |=0.8 A/cm2
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Temperature distribution in the cell (see Fig. 2 and Table 1 for locations of interfaces: Γc at y=0.001 m;Γcm at y=0.00126 m;Γam at y=0.00149 m;Γa at y=0.00175 m)
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Electric potential distribution in membrane corresponding to |i |=0.8 A/cm2 with source/sink terms switched off

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