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Experimental Analysis of Mass Transfer Capability of Membrane Humidifier for PEMFC

이온 교환막 연료전지용 막 가습기의 물질전달 성능 실험

  • Received : 2011.11.30
  • Accepted : 2012.02.24
  • Published : 2012.02.28

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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Acknowledgement

Supported by : 충남대학교