Operation of polymer electrolyte membrane fuel cells with dry feeds

Jay B. Benziger, Warren H.J. Hogarth, Claire Woo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Operation of polymer electrolyte membrane fuel cells (PEMFCs) with dry feeds is demonstrated to depend on the gas flow field design, gas pressure, temperature and flow rate. We demonstrate auto-humidified operation of the channel-less, self-draining fuel cell, from 25 to 115°C. Traditional serpentine flow channel designs cannot sustain autohumidified operation above 60°C. Auto-humidified (or self humidifying) PEMFC operation is improved in the channel-less fuel cell where axial dispersion enhances "back- mixing" of the product water with the dry feed. The auto-humidified self-draining fuel cell design offers substantial benefits for simplicity of operation and control including: the ability to self drain reducing flooding, the ability to uniformly disperse water removing current gradients and the ability to operate on dry feeds eliminating the need for humidifiers.

Original languageEnglish (US)
Title of host publicationECS Transactions - Fuel Cell Seminar 2007
Pages165-176
Number of pages12
Edition1
DOIs
StatePublished - Nov 17 2008
EventFuel Cell Seminar 2007 - San Antonio, TX, United States
Duration: Oct 15 2007Oct 19 2007

Publication series

NameECS Transactions
Number1
Volume12
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherFuel Cell Seminar 2007
CountryUnited States
CitySan Antonio, TX
Period10/15/0710/19/07

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Benziger, J. B., Hogarth, W. H. J., & Woo, C. (2008). Operation of polymer electrolyte membrane fuel cells with dry feeds. In ECS Transactions - Fuel Cell Seminar 2007 (1 ed., pp. 165-176). (ECS Transactions; Vol. 12, No. 1). https://doi.org/10.1149/1.2921544