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Experimental Analysis for Variation of Pressure Difference on Flooding in PEM Fuel Cell at Cathode Channel Outlet  

Ahn, Deuk-Keun (Grad. School of Korea Univ.)
Han, Seong-Ho (Grad. School of Korea Univ.)
Kim, Kyoung-Rock (Grad. School of Korea Univ.)
Choi, Young-Don (School of Mechanical Engineering, Korea Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.5, 2009 , pp. 390-396 More about this Journal
Abstract
The flooding, especially in channel, is one of the critical issue to put proton exchange membrane fuel cell (PEMFC) to practical use. In this paper, channel flooding was investigated the pressure difference at cathode channel outlet. A ratio of pressure difference changes to 25, 50% as its variation rate. The pressure variable rate is reflected in dimensionless number FN. As a result, modified dimensionless number $FN^*$ correctly predicted the channel flooding. This study analyzes that a variety of pressure difference is how to affect flooding at the cathode of the PEMFC.
Keywords
PEMFC; Cathode; Flooding; Pressure difference;
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Times Cited By KSCI : 1  (Citation Analysis)
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