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Article: Characterization of the dynamic response of proton exchange membrane fuel cells - A numerical study

TitleCharacterization of the dynamic response of proton exchange membrane fuel cells - A numerical study
Authors
KeywordsCharacteristic time
Dynamic behavior
PEM fuel cell
Polymer electrolyte fuel cell
Transient response
Water flooding
Issue Date2010
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhydene
Citation
International Journal Of Hydrogen Energy, 2010, v. 35 n. 21, p. 11861-11877 How to Cite?
AbstractThe dynamic response of PEM (Proton exchange membrane) fuel cells is a complex phenomenon which is affected by numerous factors related to their designs and operating conditions. Despite that experimental data is available in the literature, a systematic numerical study to explain the dynamic behavior of PEM fuel cells is currently unavailable. In this paper, a one-dimensional, two-phase, dynamic model of PEM fuel cell is developed to achieve this principal objective. Transient profiles of cell voltage, activation and ohmic over-potentials, saturation level of liquid water, oxygen concentration, and membrane water content are predicted under various operating conditions. Under constant fuel and air flow rates, it is found that the cell voltage exhibits undershoot behavior following a step increase in current density due to the inherent time delay experienced by the redistribution of membrane water content with a response time of ∼50 s. The undershoot is followed by an overshoot in the presence of flooding with a significantly longer predicted response time of ∼150-200 s. It is found that the various operating conditions mainly affect the specific details of the undershoot and overshoot profiles without changing their general behavioral forms. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/148909
ISSN
2015 Impact Factor: 3.205
2015 SCImago Journal Rankings: 1.330
ISI Accession Number ID
Funding AgencyGrant Number
University Grants Committee of the Hong Kong Special Administrative Region
Research Grants Council Earmarked Research Grant (ERG)PolyU 5209/09E
Funding Information:

The research work was funded by the University Grants Committee of the Hong Kong Special Administrative Region, Research Grants Council Earmarked Research Grant (ERG) number PolyU 5209/09E.

References

 

DC FieldValueLanguage
dc.contributor.authorLoo, KHen_HK
dc.contributor.authorWong, KHen_HK
dc.contributor.authorTan, SCen_HK
dc.contributor.authorLai, YMen_HK
dc.contributor.authorTse, CKen_HK
dc.date.accessioned2012-06-20T06:16:16Z-
dc.date.available2012-06-20T06:16:16Z-
dc.date.issued2010en_HK
dc.identifier.citationInternational Journal Of Hydrogen Energy, 2010, v. 35 n. 21, p. 11861-11877en_HK
dc.identifier.issn0360-3199en_HK
dc.identifier.urihttp://hdl.handle.net/10722/148909-
dc.description.abstractThe dynamic response of PEM (Proton exchange membrane) fuel cells is a complex phenomenon which is affected by numerous factors related to their designs and operating conditions. Despite that experimental data is available in the literature, a systematic numerical study to explain the dynamic behavior of PEM fuel cells is currently unavailable. In this paper, a one-dimensional, two-phase, dynamic model of PEM fuel cell is developed to achieve this principal objective. Transient profiles of cell voltage, activation and ohmic over-potentials, saturation level of liquid water, oxygen concentration, and membrane water content are predicted under various operating conditions. Under constant fuel and air flow rates, it is found that the cell voltage exhibits undershoot behavior following a step increase in current density due to the inherent time delay experienced by the redistribution of membrane water content with a response time of ∼50 s. The undershoot is followed by an overshoot in the presence of flooding with a significantly longer predicted response time of ∼150-200 s. It is found that the various operating conditions mainly affect the specific details of the undershoot and overshoot profiles without changing their general behavioral forms. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhydeneen_HK
dc.relation.ispartofInternational Journal of Hydrogen Energyen_HK
dc.subjectCharacteristic timeen_HK
dc.subjectDynamic behavioren_HK
dc.subjectPEM fuel cellen_HK
dc.subjectPolymer electrolyte fuel cellen_HK
dc.subjectTransient responseen_HK
dc.subjectWater floodingen_HK
dc.titleCharacterization of the dynamic response of proton exchange membrane fuel cells - A numerical studyen_HK
dc.typeArticleen_HK
dc.identifier.emailTan, SC:sctan@hku.hken_HK
dc.identifier.authorityTan, SC=rp01606en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.ijhydene.2010.08.071en_HK
dc.identifier.scopuseid_2-s2.0-77957701013en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77957701013&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume35en_HK
dc.identifier.issue21en_HK
dc.identifier.spage11861en_HK
dc.identifier.epage11877en_HK
dc.identifier.isiWOS:000283959900022-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLoo, KH=7003558724en_HK
dc.identifier.scopusauthoridWong, KH=8380596800en_HK
dc.identifier.scopusauthoridTan, SC=26642772000en_HK
dc.identifier.scopusauthoridLai, YM=7401512093en_HK
dc.identifier.scopusauthoridTse, CK=7103295097en_HK
dc.identifier.citeulike7882908-

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