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dc.contributor.authorWoodfield, P.en_US
dc.contributor.authorFukai, J.en_US
dc.contributor.authorFujii, M.en_US
dc.contributor.authorTakata, Y.en_US
dc.contributor.authorShinzato, K.en_US
dc.date.accessioned2017-04-24T13:22:06Z
dc.date.available2017-04-24T13:22:06Z
dc.date.issued2008en_US
dc.date.modified2011-05-03T04:45:38Z
dc.identifier.issn15729567en_US
dc.identifier.doi10.1007/s10765-008-0468-zen_AU
dc.identifier.urihttp://hdl.handle.net/10072/38485
dc.description.abstractThe transient short-hot-wire method for measuring thermal conductivity and thermal diffusivity makes use of only one thermal-conductivity cell, and end effects are taken into account by numerical simulation. A search algorithm based on the Gauss-Newton nonlinear least-squares method is proposed to make the method applicable to high-diffusivity (i.e., low-density) gases. The procedure is tested using computer-generated data for hydrogen at atmospheric pressure and published experimental data for low-density argon gas. Convergence is excellent even for cases where the temperature rise versus the logarithm of time is far from linear. The determined values for thermal conductivity from experimental data are in good agreement with published values for argon, while the thermal diffusivity is about 10 % lower than the reference data. For the computer-generated data, the search algorithm can return both thermal conductivity and thermal diffusivity to within 0.02 % of the exact values. A one-dimensional version of the method may be used for analysis of low-density gas data produced by conventional transient hot-wire instruments.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherSpringeren_US
dc.publisher.placeUnited Statesen_US
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom1299en_US
dc.relation.ispartofpageto1320en_US
dc.relation.ispartofissue4en_US
dc.relation.ispartofjournalInternational Journal of Thermophysicsen_US
dc.relation.ispartofvolume29en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchMechanical Engineering not elsewhere classifieden_US
dc.subject.fieldofresearchcode091399en_US
dc.titleDetermining thermal conductivity and thermal diffusivity of low-density gases using the transient short-hot-wire methoden_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2008
gro.hasfulltextNo Full Text


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