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Two-dimensional modeling of a polymer electrolyte membrane fuel cell with long flow channel. Part I. Model development

Bao, Chen and Bessler, Wolfgang G. (2015) Two-dimensional modeling of a polymer electrolyte membrane fuel cell with long flow channel. Part I. Model development. Journal of Power Sources, 275, pp. 922-934. Elsevier. DOI: [10.1016/j.jpowsour.2014.11.058] ISSN 0378-7753

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Official URL: http://www.journals.elsevier.com/journal-of-power-sources/

Abstract

A two-dimensional single-phase model is developed for the steady-state and transient analysis of polymer electrolyte membrane fuel cells (PEMFC). Based on diluted and concentrated solution theories, viscous flow is introduced into a phenomenological multi-component modeling framework in the membrane. Characteristic variables related to the water uptake are discussed. A ButlereVolmer formulation of the current-overpotential relationship is developed based on an elementary mechanism of electrochemical oxygen reduction. Validated by using published VeI experiments, the model is then used to analyze the effects of operating conditions on current output and water management, especially net water transport coefficient along the channel. For a power PEMFC, the long-channel configuration is helpful for internal humidification and anode water removal, operating in counterflow mode with proper gas flow rate and humidity. In time domain, a typical transient process with closed anode is also investigated.

Item URL in elib:https://elib.dlr.de/99158/
Document Type:Article
Title:Two-dimensional modeling of a polymer electrolyte membrane fuel cell with long flow channel. Part I. Model development
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bao, Chenchen.bao (at) dlr.deUNSPECIFIED
Bessler, Wolfgang G.Wolfgang.Bessler (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:Journal of Power Sources
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:275
DOI :[10.1016/j.jpowsour.2014.11.058]
Page Range:pp. 922-934
Publisher:Elsevier
ISSN:0378-7753
Status:Published
Keywords:polymer electrolyte membrane fuel cells (PEMFC) Oxygen reduction reaction (ORR) kinetics Internal humidification
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Fuel Cells (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Electrochemical Processes (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Friedrich, Prof.Dr. Kaspar Andreas
Deposited On:09 Dec 2015 08:36
Last Modified:31 Jul 2019 19:56

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