Mass transfer enhancement for improving the performance of polymer electrolyte fuel cells

P. W. Li, U. Uysal, M. K. Chyu

Research output: Contribution to conferencePaper

3 Scopus citations

Abstract

The significance of mass transfer enhancement in polymer electrolyte fuel cells (PEFC) is presented and studied in this work based on experimental investigation. A novel structure of reactant gas distributors in PEFC is proposed for mass transfer enhancement purpose. For the PEFC with novel gas distributors, it is found that the large drop of the cell voltage, generally caused by a weak mass diffusion, is postponed to occur at relatively higher current density even though the same or less amount of air is fed when comparing to a PEFC with gas distributors in conventional structure. As a result, the maximum obtained electrical power in a PEFC and a PEFC stack both are dramatically improved under both free convective and forced convective airflow conditions.

Original languageEnglish (US)
Pages87-92
Number of pages6
StatePublished - Dec 1 2004
Externally publishedYes
EventProceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004 - Charlotte, NC, United States
Duration: Jul 11 2004Jul 15 2004

Other

OtherProceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004
CountryUnited States
CityCharlotte, NC
Period7/11/047/15/04

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Li, P. W., Uysal, U., & Chyu, M. K. (2004). Mass transfer enhancement for improving the performance of polymer electrolyte fuel cells. 87-92. Paper presented at Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004, Charlotte, NC, United States.