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dc.contributor.authorWoodfield, PL
dc.contributor.authorFukai, J
dc.contributor.authorFujii, M
dc.contributor.authorTakata, Y
dc.contributor.authorShinzato, K
dc.date.accessioned2017-05-03T15:47:53Z
dc.date.available2017-05-03T15:47:53Z
dc.date.issued2008
dc.date.modified2011-05-03T04:45:38Z
dc.identifier.issn0195-928X
dc.identifier.doi10.1007/s10765-008-0468-z
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.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherSpringer
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom1299
dc.relation.ispartofpageto1320
dc.relation.ispartofissue4
dc.relation.ispartofjournalInternational Journal of Thermophysics
dc.relation.ispartofvolume29
dc.rights.retentionY
dc.subject.fieldofresearchClassical physics
dc.subject.fieldofresearchPhysical chemistry
dc.subject.fieldofresearchChemical engineering
dc.subject.fieldofresearchMechanical engineering not elsewhere classified
dc.subject.fieldofresearchcode5103
dc.subject.fieldofresearchcode3406
dc.subject.fieldofresearchcode4004
dc.subject.fieldofresearchcode401799
dc.titleDetermining thermal conductivity and thermal diffusivity of low-density gases using the transient short-hot-wire method
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2008
gro.hasfulltextNo Full Text
gro.griffith.authorWoodfield, Peter L.


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