Unsteady surface heat flux and temperature measurements

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dc.contributor.authorBaker, Karen Ireneen
dc.contributor.committeechairDillaha, Theo A. IIIen
dc.contributor.committeememberVick, Brian L.en
dc.contributor.committeememberMoses, Hal L.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T21:50:55Zen
dc.date.adate2009-12-04en
dc.date.available2014-03-14T21:50:55Zen
dc.date.issued1993-05-19en
dc.date.rdate2009-12-04en
dc.date.sdate2009-12-04en
dc.description.abstractA fast response thin-film heat flux sensor was used to measure the time-resolved surface heat flux and temperature from a turbulent combustion flame impinging on a surface. Using the analytical semi-infinite conduction model, the unsteady surface heat flux was calculated from the transient temperature measurements and the surface temperature was calculated from the unsteady surface heat flux measurements. Methods of comparing time-resolved heat flux and temperature data were presented and discussed. The standard analytical method for converting surface temperature to heat flux was used. Two new analytical methods were developed for converting heat flux to surface temperature. The study is the first demonstration of time-resolved temperature signals generated from time-resolved heat flux measurements. The results graphically illustrate the effects of data processing on electrical noise present in the actual signal. The effect of flame unsteadiness is also shown, especially in the time-resolved heat flux measurements, which gives insight into the behavior of a propane torch. One application is for development of feed-forward control systems in industrial processes with fast transients.en
dc.description.degreeMaster of Scienceen
dc.format.extentxii, 115 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-12042009-020124en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-12042009-020124/en
dc.identifier.urihttp://hdl.handle.net/10919/46091en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1993.B354.pdfen
dc.relation.isformatofOCLC# 28552970en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1993.B354en
dc.subject.lcshHeat engineering -- Measurementen
dc.subject.lcshHeat flux transducersen
dc.subject.lcshThin film devicesen
dc.titleUnsteady surface heat flux and temperature measurementsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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