Transport in PEMFC Stacks - DOE Hydrogen and Fuel Cells ...
Transport in PEMFC Stacks - DOE Hydrogen and Fuel Cells ...
Transport in PEMFC Stacks - DOE Hydrogen and Fuel Cells ...
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Achievement: Model Verification:<br />
Distributions of current density <strong>and</strong> temperature of 50-cm 2 GM-Down-the-Channel flow-field compared with<br />
www.pemfcdata.prg<br />
( I avg = 1.5 A/cm 2 , counter-current flow: 50/50%RH, 150/150kPa, 80 o C, 1.5/2.0 stoich)<br />
USC CFD prediction<br />
Current Distribution<br />
www.pemfcdata.org<br />
USC CFD prediction<br />
Temperature Distribution<br />
Cell potential (V)<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0.0<br />
Data are also validated with<br />
www.pemfcdata.org<br />
provided by GM.<br />
GM-Down-the-Channel: USC-Experiment<br />
GM-Down-the-Channel: Model<strong>in</strong>g<br />
0 200 400 600 800 1000 1200 1400 1600<br />
Current density (mA/cm 2 )<br />
www.pemfcdata.org<br />
USC data matches published data very well, both with performance <strong>and</strong> model results<br />
This presentation does not conta<strong>in</strong> any proprietary, confidential,<br />
or otherwise restricted <strong>in</strong>formation<br />
20
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