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Criteria for Characterizing the Performances of Fuel Cell Humidifiers: Theoretical Approach and Experimental Results

[+] Author Affiliations
Corinne Dalet, Olivier Lottin, Gaël Maranzana

LEMTA, Nancy-University, Vandoeuvre lès Nancy, France

Mouad Diny

Peugeot Citroën Automobile, Carrières sous Poissy, France

Paper No. FuelCell2008-65182, pp. 309-316; 8 pages
doi:10.1115/FuelCell2008-65182
From:
  • ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology
  • ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology
  • Denver, Colorado, USA, June 16–18, 2008
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4318-1 | eISBN: 0-7918-3822-6
  • Copyright © 2008 by ASME

abstract

In a proton exchange membrane fuel cell (PEMFC), humidification of reactant gases must be carefully optimized. Extremes in humidity levels at the low end (membrane dehydratation) and at the high end of the range (cathode flooding) can seriously reduce PEMFC performances. Various devices already exist to humidify and to adjust the temperature of gas streams. Criteria for the evaluation of their performances depend on the technology and/or differ from one manufacturer to the other, which makes comparison difficult. A fortiori, there is no consensus regarding their ideal values and no general method for their evaluation. The purpose of this article is to define two parameters (efficiencies) suitable for all humidification technologies and characterizing air humidifier performances in term of mass and heat transfer. These parameters allow to compare the different technologies and to define, for all of them, the range of performances required to supply fuel cells with properly humidified gases.

Copyright © 2008 by ASME

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