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http://dx.doi.org/10.3795/KSME-B.2013.37.9.815

Experimental Evaluation of Hydrophilic Membrane Humidifier with Isolation of Heat Transfer Effect  

Tak, Hyun Woo (Dept. of Mechanical Engineering, Chungnam Nat'l Univ.)
Kim, Kyoung Teck (Dept. of Mechanical Engineering, Chungnam Nat'l Univ.)
Han, Jae Young (Dept. of Mechanical Engineering, Chungnam Nat'l Univ.)
Im, Seok Yeon (Korean Intellectual Property Office)
Yu, Sang Seok (Dept. of Mechanical Engineering, Chungnam Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.9, 2013 , pp. 815-821 More about this Journal
Abstract
The efficiency and lifetime of a polymer electrolyte membrane fuel cell (PEMFC) system is critically affected by the humidity of the incoming gas, which should be maintained properly under normal operating conditions. Typically, the incoming gas of a fuel cell is humidified by an external humidifier, but few studies have reported on the device characteristics. In this study, a laboratory-scale planar membrane humidifier is designed to investigate the characteristics of water transport through a hydrophilic membrane. The planar membrane humidifier is immersed in a constant temperature bath to isolate the humidifier from the effect of temperature variations. The mass transfer capability of the hydrophilic membrane is first examined under isothermal conditions. Then, the mass transfer capability is investigated under various conditions. The results show that water transport in the hydrophilic membrane is significantly affected by the flow rate, operating temperature, operating pressure, and flow arrangement.
Keywords
PEMFC; Membrane Humidifier; Hydrophilic Membrane:Mass Transfer; Water Transfer;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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