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Experimental and Numerical Analysis of Subfreezing Operation in PEM Fuel Cells

[+] Author Affiliations
Jeff Mishler, Yun Wang

University of California at Irvine, Irvine, CA

Partha P. Mukherjee

Oak Ridge National Laboratory, Oak Ridge, TN

Rangachary Mukundan, Rodney L. Borup

Los Alamos National Laboratory, Los Alamos, NM

Paper No. FuelCell2010-33124, pp. 549-554; 6 pages
doi:10.1115/FuelCell2010-33124
From:
  • ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology
  • ASME 2010 8th International Fuel Cell Science, Engineering and Technology Conference: Volume 1
  • Brooklyn, New York, USA, June 14–16, 2010
  • Conference Sponsors: Advanced Energy Systems Division
  • ISBN: 978-0-7918-4404-5 | eISBN: 978-0-7918-3875-4
  • Copyright © 2010 by ASME

abstract

In this work, we present a neutron radiography and analysis, as well as modeling study on cold-start operation of polymer electrolyte membrane (PEM) fuel cells. Fuel cells with Gore™ or LANL MEAs and SGL or E-Tek ELAT GDLs are tested in varying subfreezing temperatures (−40 to 0°C) to determine the time scale of cold-start failure, amount of solid water formation, solid water formation location, and. A higher PTFE-loading in the MPL is found to decrease loss in electrocatalytic surface area in our case. Theoretical analysis is also conducted and model predictions are compared with the experimental data in terms of the cell voltage evolution.

Copyright © 2010 by ASME

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