An experimental analysis of cell temperature effects on an air-breathing, PEM fuel cell is presented. The cell was tested in three active area sizes of 5 cm2, 10 cm2, and 25 cm2. The cell’s design minimized the influence of self-heating by using a large thermal body in its construction which conducted heat away from the active area. This allowed for the use of a heater and controller to test a constant cell temperature uninfluenced by current density. Polarization and electrochemical impedance spectroscopy testing showed that at higher current density, elevated temperature increased the buoyancy of the air around the cell which improved open cell performance. However, the opposite is true for lower current density as membrane dehydration becomes more prevalent at higher temperatures. Schlieren imaging, in conjunction with the polarization and EIS data, shows how heated and more buoyant air boosts cell performance. Infrared imaging identifies temperature gradients on the active surface which may hinder cell performance slightly.
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ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability
August 7–10, 2011
Washington, DC, USA
Conference Sponsors:
- Advanced Energy Systems Division
ISBN:
978-0-7918-5469-3
PROCEEDINGS PAPER
Experimental Evaluation of Cell Temperature Effects on Miniature, Air-Breathing PEM Fuel Cells Available to Purchase
Zachary R. Williamson,
Zachary R. Williamson
Michigan State University, East Lansing, MI
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Daejoong Kim,
Daejoong Kim
Sogang University, Seoul, Republic of Korea
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Dae-Keun Chun,
Dae-Keun Chun
Michigan State University, East Lansing, MI
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Cody W. Squibb,
Cody W. Squibb
Michigan State University, East Lansing, MI
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Tonghun Lee
Tonghun Lee
Michigan State University, East Lansing, MI
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Zachary R. Williamson
Michigan State University, East Lansing, MI
Daejoong Kim
Sogang University, Seoul, Republic of Korea
Dae-Keun Chun
Michigan State University, East Lansing, MI
Cody W. Squibb
Michigan State University, East Lansing, MI
Tonghun Lee
Michigan State University, East Lansing, MI
Paper No:
FuelCell2011-54115, pp. 875-882; 8 pages
Published Online:
March 22, 2012
Citation
Williamson, ZR, Kim, D, Chun, D, Squibb, CW, & Lee, T. "Experimental Evaluation of Cell Temperature Effects on Miniature, Air-Breathing PEM Fuel Cells." Proceedings of the ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability. ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology. Washington, DC, USA. August 7–10, 2011. pp. 875-882. ASME. https://doi.org/10.1115/FuelCell2011-54115
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