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Basic analysis of heat and mass transfer characteristics of tubular membrane humidifier for proton exchange membrane fuel cell

Transactions of the Korean Society of Mechanical Engineers, B, ISSN: 2288-5234, Vol: 35, Issue: 5, Page: 473-480
2011
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The proton exchange membrane (PEM) fuel cell system is critically dependent on the humidity, which should be properly maintained over the entire operating range. A membrane humidifier is used for the water management in the PEMFC because of the membrane humidifier's reliable performance and zero parasitic power loss. In the PEMFC system, the membrane humidifier is required to provide appropriate humidity for the design point of the fuel cell. Although the performance of the fuel cell depends on the performance of the humidifier, few studies have provided a systematic analysis of the humidifier. We carry out an experimental analysis of the membrane humidifier using a vapor condensation bottle. The dry air pressure, water flow temperature, and air flow rate were chosen as the operating parameters. The results show that the time constant for the dynamic response of the membrane humidifier is relatively short, but additional analysis should be carried out. © 2011 The Korean Society of Mechanical Engineers.

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