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dc.contributor.authorMacKay, James D.en
dc.date.accessioned2014-03-14T21:49:56Zen
dc.date.available2014-03-14T21:49:56Zen
dc.date.issued1987-05-05en
dc.identifier.otheretd-11172012-040210en
dc.identifier.urihttp://hdl.handle.net/10919/45797en
dc.description.abstractThe purpose of this thesis is to develop a method to estimate local blade temperatures in a gas turbine for comparison with the output signal of an experimental pyrometer. The goal of the method is to provide a temperature measurement benchmark based on a knowledge of blade geometry and engine operating conditions. A survey of currently available methods is discussed including both experimental and analytical techniques.The purpose of this thesis is to develop a method to estimate local blade temperatures in a gas turbine for comparison with the output signal of an experimental pyrometer. The goal of the method is to provide a temperature measurement benchmark based on a knowledge of blade geometry and engine operating conditions. A survey of currently available methods is discussed including both experimental and analytical techniques. An analytical approach is presented as an example, using the output from a cascade flow solver to estimate local blade temperatures from local flow conditions. With the local blade temperatures, a grid is constructed which maps the temperatures onto the blade. A predicted pyrometer trace path is then used to interpolate temperature values from the grid, predicting the temperature history a pyrometer would record as the blade rotates through the pyrometer line of sight. Plotting the temperature history models a pyrometer input signal. An analytical approach is presented as an example, using the output from a cascade flow solver to estimate local blade temperatures from local flow conditions. With the local blade temperatures, a grid is constructed which maps the temperatures onto the blade. A predicted pyrometer trace path is then used to interpolate temperature values from the grid, predicting the temperature history a pyrometer would record as the blade rotates through the pyrometer line of sight. Plotting the temperature history models a pyrometer input signal.en
dc.format.extentix, 70 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.publisherVirginia Techen
dc.relation.isformatofOCLC# 16817921en
dc.relation.haspartLD5655.V855_1987.M334.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1987.M334en
dc.subject.lcshAerothermodynamicsen
dc.subject.lcshRadiation pyrometersen
dc.subject.lcshTurbines -- Bladesen
dc.titleAnalytical method for turbine blade temperature mapping to estimate a pyrometer input signalen
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.committeechairO'Brien, Walter F. Jr.en
dc.contributor.committeememberMoses, Hal L.en
dc.contributor.committeememberWood, Henry L.en
dc.type.dcmitypeTexten
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11172012-040210/en
dc.date.sdate2012-11-17en
dc.date.rdate2012-11-17en
dc.date.adate2012-11-17en


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