File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Modeling of methane fed solid oxide fuel cells: Comparison between proton conducting electrolyte and oxygen ion conducting electrolyte

TitleModeling of methane fed solid oxide fuel cells: Comparison between proton conducting electrolyte and oxygen ion conducting electrolyte
Authors
KeywordsMethane steam reforming (MSR)
Multi-component mass transfer
Proton conducting electrolyte
Solid oxide fuel cell (SOFC)
Triple-phase boundary (TPB)
Water gas shift (WGS)
Issue Date2008
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jpowsour
Citation
Journal Of Power Sources, 2008, v. 183 n. 1, p. 133-142 How to Cite?
AbstractAn electrochemical model was developed to study the methane (CH4) fed solid oxide fuel cell (SOFC) using proton conducting electrolyte (SOFC-H) and oxygen ion conducting electrolyte (SOFC-O). Both the internal methane steam reforming (MSR) and water gas shift (WGS) reactions are considered in the model. Previous study has shown that the CH4 fed SOFC-H had significantly better performance than the SOFC-O. However, the present study reveals that the actual performance of the CH4 fed SOFC-H is considerably lower than the SOFC-O, partly due to higher ohmic overpotential of SOFC-H. It is also found that the CH4 fed SOFC-H has considerably higher cathode concentration overpotential and lower anode concentration overpotential than the SOFC-O. The anode concentration overpotentials of the CH4 fed SOFC-H and SOFC-O are found to decrease with increasing temperature, which is different from previous analyses on the H2 fed SOFC. Therefore, high temperature is desirable for increasing the potential of the CH4 fed SOFC. It is also found that there exist optimal electrode porosities that minimize the electrode total overpotentials. The analyses provided in this paper signify the difference between the CH4 fed SOFC-H and SOFC-O. The model developed in this paper can be extended to 2D or 3D models to study the performance of practical SOFC systems. © 2008 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/156969
ISSN
2015 Impact Factor: 6.333
2015 SCImago Journal Rankings: 2.008
ISI Accession Number ID
Funding AgencyGrant Number
CRCG of the University of Hong Kong
Funding Information:

The authors would like to thank the financial support from the CRCG of the University of Hong Kong. The authors also would like to thank Professor S.H. Chan (Nanyang Technological University, Singapore), Professor A.K. Demin (institute of High Temperature Electrochemistry, Russia), and Professor ISM. Meng (University of Science and Technology of China, PR China) for their Valuable discussions and suggestions in this SCFC research.

References

 

DC FieldValueLanguage
dc.contributor.authorNi, Men_HK
dc.contributor.authorLeung, DYCen_HK
dc.contributor.authorLeung, MKHen_HK
dc.date.accessioned2012-08-08T08:44:45Z-
dc.date.available2012-08-08T08:44:45Z-
dc.date.issued2008en_HK
dc.identifier.citationJournal Of Power Sources, 2008, v. 183 n. 1, p. 133-142en_HK
dc.identifier.issn0378-7753en_HK
dc.identifier.urihttp://hdl.handle.net/10722/156969-
dc.description.abstractAn electrochemical model was developed to study the methane (CH4) fed solid oxide fuel cell (SOFC) using proton conducting electrolyte (SOFC-H) and oxygen ion conducting electrolyte (SOFC-O). Both the internal methane steam reforming (MSR) and water gas shift (WGS) reactions are considered in the model. Previous study has shown that the CH4 fed SOFC-H had significantly better performance than the SOFC-O. However, the present study reveals that the actual performance of the CH4 fed SOFC-H is considerably lower than the SOFC-O, partly due to higher ohmic overpotential of SOFC-H. It is also found that the CH4 fed SOFC-H has considerably higher cathode concentration overpotential and lower anode concentration overpotential than the SOFC-O. The anode concentration overpotentials of the CH4 fed SOFC-H and SOFC-O are found to decrease with increasing temperature, which is different from previous analyses on the H2 fed SOFC. Therefore, high temperature is desirable for increasing the potential of the CH4 fed SOFC. It is also found that there exist optimal electrode porosities that minimize the electrode total overpotentials. The analyses provided in this paper signify the difference between the CH4 fed SOFC-H and SOFC-O. The model developed in this paper can be extended to 2D or 3D models to study the performance of practical SOFC systems. © 2008 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_US
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jpowsouren_HK
dc.relation.ispartofJournal of Power Sourcesen_HK
dc.subjectMethane steam reforming (MSR)en_HK
dc.subjectMulti-component mass transferen_HK
dc.subjectProton conducting electrolyteen_HK
dc.subjectSolid oxide fuel cell (SOFC)en_HK
dc.subjectTriple-phase boundary (TPB)en_HK
dc.subjectWater gas shift (WGS)en_HK
dc.titleModeling of methane fed solid oxide fuel cells: Comparison between proton conducting electrolyte and oxygen ion conducting electrolyteen_HK
dc.typeArticleen_HK
dc.identifier.emailLeung, DYC: ycleung@hku.hken_HK
dc.identifier.emailLeung, MKH:en_HK
dc.identifier.authorityLeung, DYC=rp00149en_HK
dc.identifier.authorityLeung, MKH=rp00148en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.jpowsour.2008.04.073en_HK
dc.identifier.scopuseid_2-s2.0-46749133832en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-46749133832&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume183en_HK
dc.identifier.issue1en_HK
dc.identifier.spage133en_HK
dc.identifier.epage142en_HK
dc.identifier.eissn1873-2755-
dc.identifier.isiWOS:000259659300020-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridNi, M=9268339800en_HK
dc.identifier.scopusauthoridLeung, DYC=7203002484en_HK
dc.identifier.scopusauthoridLeung, MKH=8862966600en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats