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dc.contributor.authorTilahun, Mulukenen
dc.date.accessioned2014-03-14T20:50:57Zen
dc.date.available2014-03-14T20:50:57Zen
dc.date.issued1998-01-20en
dc.identifier.otheretd-1398-122058en
dc.identifier.urihttp://hdl.handle.net/10919/36509en
dc.description.abstractIn previous studies, evidence of thermal wave behavior was found in heterogeneous materials. Thus, the overall goal of this study was to experimentally verify those results, and develop a parameter estimation scheme to estimate the thermal properties of various heterogeneous materials. Two types of experiments (Experiments 1 and 2) were conducted to verify the existence or non-existence of thermal wave behavior in heterogeneous materials. In Experiment 1 sand, ion exchanger, and sodium bicarbonate were used as test materials, while processed meat (bologna) was used in Experiment 2. The measured temperature profiles of the samples were compared with the parabolic and hyperbolic heat conduction model results. The values of thermal diffusivity and thermal conductivity were obtained using the Box-Kanemasu parameter estimation method which is based on the comparison between temperature measurements and the solutions of the theoretical model. Overall, no clear experimental evidence was found to justify the use of hyperbolic heat conduction models rather than parabolic for the materials tested. Further comprehensive experimentation using different heating rates is warranted to definitely identify the accurate type of heat conduction process associated with such materials, and to describe the physical mechanisms which produce wave-like heat conduction in heterogeneous materials.en
dc.publisherVirginia Techen
dc.relation.haspartetd.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectThermal Propertiesen
dc.subjectParameter Estimationen
dc.subjectNonhomogeneousen
dc.titleExperimental Investigation of Hyperbolic Heat Transfer in Heterogeneous Materialsen
dc.typeThesisen
dc.contributor.departmentMechanical Engineeringen
dc.description.degreeMaster of Scienceen
thesis.degree.nameMaster of Scienceen
thesis.degree.levelmastersen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplineMechanical Engineeringen
dc.contributor.committeechairScott, Elaine P.en
dc.contributor.committeememberCramer, Mark S.en
dc.contributor.committeememberVick, Brian L.en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-1398-122058/en
dc.date.sdate1998-01-20en
dc.date.rdate1999-02-04en
dc.date.adate1998-02-04en


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