Assessment of modulated hot wire method for thermophysical characterization of fluid and solid matrices charged with (nano)particle inclusions

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dc.contributor.authorChirtoc M.
dc.contributor.authorHenry J.F.
dc.contributor.authorTurgut A.
dc.contributor.authorTavman I.
dc.contributor.authorHadjov K.
dc.contributor.authorSchuchmann H.P.
dc.contributor.authorSauter C.
dc.contributor.authorAntoniow J.S.
dc.contributor.authorFudym O.
dc.contributor.authorTavman S.
dc.date.accessioned2019-10-26T22:51:18Z
dc.date.available2019-10-26T22:51:18Z
dc.date.issued2010
dc.departmentEge Üniversitesien_US
dc.description.abstractRecently we reported on simultaneous thermal conductivity k and thermal diffusivity a measurement of liquids and in particular of nanofluids in a configuration using an ac excited hot wire combined with lock-in detection of the third harmonic (3? method) [1]. The conductive wire is used as both heater and sensor. The requirements for the asymptotic validity of the line heat source model are fulfilled at low modulation frequencies below a few Hz. The study of the relative sensitivity of signal amplitude and phase to changes in k and a indicates that there is an optimum frequency range for accurate and stable results. We extend by up to two decades the feasible frequency range for 3? measurements by considering various more elaborate models for the heat transfer between the wire and the fluid. Finally we show that the same ac hot wire method can be applied to soft solid, composite materials. We measured the k enhancement of a poly(ethylene vinyl acetate) EVA polymer matrix charged with various fractions of graphite. © 2010 IOP Publishing Ltd.en_US
dc.identifier.doi10.1088/1742-6596/214/1/012135
dc.identifier.issn1742-6588
dc.identifier.issn1742-6588en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.org/10.1088/1742-6596/214/1/012135
dc.identifier.urihttps://hdl.handle.net/11454/20275
dc.identifier.volume214en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherInstitute of Physics Publishingen_US
dc.relation.ispartofJournal of Physics: Conference Seriesen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleAssessment of modulated hot wire method for thermophysical characterization of fluid and solid matrices charged with (nano)particle inclusionsen_US
dc.typeConference Objecten_US

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