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

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

doi:10.1115/ht-fed2004-56217

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

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

Aerospace and Mechanical Engineering

Research output: Contribution to conference › Paper › peer-review

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 language	English (US)
Pages	87-92
Number of pages	6
DOIs	https://doi.org/10.1115/ht-fed2004-56217
State	Published - 2004
Event	Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004 - Charlotte, NC, United States Duration: Jul 11 2004 → Jul 15 2004

Other

Other	Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004
Country/Territory	United States
City	Charlotte, NC
Period	7/11/04 → 7/15/04

ASJC Scopus subject areas

Engineering(all)

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title = "Mass transfer enhancement for improving the performance of polymer electrolyte fuel cells",

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.",

author = "Li, {P. W.} and U. Uysal and Chyu, {M. K.}",

year = "2004",

doi = "10.1115/ht-fed2004-56217",

language = "English (US)",

pages = "87--92",

note = "Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004 ; Conference date: 11-07-2004 Through 15-07-2004",

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T1 - Mass transfer enhancement for improving the performance of polymer electrolyte fuel cells

AU - Li, P. W.

AU - Uysal, U.

AU - Chyu, M. K.

PY - 2004

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N2 - 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.

AB - 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.

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DO - 10.1115/ht-fed2004-56217

M3 - Paper

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T2 - Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004

Y2 - 11 July 2004 through 15 July 2004

ER -

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

Abstract

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