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dc.contributor.authorMatsuka, Makien_US
dc.contributor.authorBraddock, Rogeren_US
dc.contributor.authorAgranovski, Igoren_US
dc.date.accessioned2017-04-24T11:57:46Z
dc.date.available2017-04-24T11:57:46Z
dc.date.issued2009en_US
dc.date.modified2010-06-24T05:19:50Z
dc.identifier.issn03784754en_US
dc.identifier.doi10.1016/j.matcom.2008.11.012en_AU
dc.identifier.urihttp://hdl.handle.net/10072/30318
dc.description.abstractThis study analyses the hydrogen permeation flux model with (1) modifications in the defect concentration calculations where the concentration of substitutional cation on cerium site is utilised as the independent variable for the calculation, instead of the previous step-wise calculation with the concentration of oxygen vacancy as the independent variable and (2) the additional terms to include the oxygen partial pressure gradients for calculation of hydrogen permeation flux. The modification in the defect concentration method allows a short model simulation run time, which consequently allows incorporation of the concentration constraints in the parametric sensitivity analysis, but still produces the same set of defect concentrations as calculated in the previous methods. It is also found in this study that the discrepancy between the model and experimental results (in terms of the effect of changes in hydrogen partial pressure gradients on the hydrogen permeation flux) is not due to the influence of oxygen partial pressure gradients. Parametric sensitivity analysis shows that there is no significant difference in the sensitivity of the model by comparing Case A and B. The result of parameter tuning to predict the hydrogen permeation flux for 5% thulium doped strontium cerate in Case B shows a similar trend to the previous study (Case A). These results suggest negligible oxygen ion conductivities in these types of membrane, as reported in the literature.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherElsevieren_US
dc.publisher.placeNetherlandsen_US
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom2713en_US
dc.relation.ispartofpageto2723en_US
dc.relation.ispartofissue9en_US
dc.relation.ispartofjournalMathematics and computers in simulationen_US
dc.relation.ispartofvolume79en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchOrganic Semiconductorsen_US
dc.subject.fieldofresearchcode091208en_US
dc.titleNumerical study of hydrogen permeation flux in ytterbium doped strontium cerate and thulium doped strontium cerate (II)en_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Engineeringen_US
gro.date.issued2009
gro.hasfulltextNo Full Text


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