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http://dx.doi.org/10.7316/khnes.2012.23.1.019

Experimental Analysis of Mass Transfer Capability of Membrane Humidifier for PEMFC  

Tak, Hyun-Woo (Dept. of Mechanical Engineering, Chungnam National Univ.)
Kim, Kyung-Taek (Dept. of Mechanical Engineering, Chungnam National Univ.)
Im, Seok-Yeon (Korean Intellectual Property Office)
Yu, Sang-Seok (Dept. of Mechanical Engineering, Chungnam National Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.23, no.1, 2012 , pp. 19-25 More about this Journal
Abstract
The efficiency and life time of the Proton Exchange Membrane fuel cell (PEMFC) system is critically affected by incoming gas with humidity which should be maintained properly at normal operating conditions. Typically, incoming gas of automotive fuel cell is humidified by external humidifier but the characteristics of device is rarely reported. In this study, characteristics of water transfer in the membrane humidifiers have been experimentally investigated for flow rates of gas and for different flow arrangement under steady state condition. At first, capability of mass transfer through the membrane is examined at constant temperature. Then, the temperature distribution effect on the capability of mass transfer is tested over various inlet conditions. In summary, this research presents the mass transfer capability of hydrophilic membrane over various operating conditions.
Keywords
PEMFC; Membrane humidifier; Nafion membrane; Mass transfer; Steady state;
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