An experimental investigation of the conversion of NO to NO2 in a simulated gas turbine environment

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dc.contributor.authorHunderup, James W.en
dc.contributor.committeechairRoby, Richard J.en
dc.contributor.committeememberVandsburger, Urien
dc.contributor.committeememberRoe, Larry A.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T21:38:33Zen
dc.date.adate2009-06-16en
dc.date.available2014-03-14T21:38:33Zen
dc.date.issued1993-10-08en
dc.date.rdate2009-06-16en
dc.date.sdate2009-06-16en
dc.description.abstractUnexpectedly high concentrations of NO₂ have been noted in stack emissions from industrial gas turbines. NO₂ formation appears to occur through the so called "HO₂ mechanism II in which NO combines with HO₂ to produce NO₂ and OH. In this study, the formation of NO₂ was investigated through computer modeling and experimental testing. Computer modeling utilized the CHEMKIN chemical kinetics program and a subset of a previously published C-H-O-N system mechanism. Experimental work was conducted using a high pressure flow reactor designed and built in the course of the study. The effects of pressure, temperature, and the presence of a NO₂ promoting hydrocarbon, methane, were investigated. It was discovered that as pressure increased from 1 atm. to 8.5 atm., the rate and amount of NO converted to NO₂ also increased. There also appeared to be a temperature "window" between approximately 800 and 1000 K in which NO to NO₂ conversion readily occurred. The presence of methane was seen to enhance NO conversion to NO₂, and a ratio of [CH₄]/[NO] was found to be a useful parameter in predicting NO₂ formation. Significant NO conversion to NO₂ was noted for [CH₄]/[NO] > 1 at the hydrocarbon injection point. Experimental results validated those trends obtained from modeling with a modified C-H-O-N mechanism.en
dc.description.degreeMaster of Scienceen
dc.format.extentx, 170 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-06162009-063102en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06162009-063102/en
dc.identifier.urihttp://hdl.handle.net/10919/43317en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1993.H862.pdfen
dc.relation.isformatofOCLC# 29850382en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1993.H862en
dc.subject.lcshChemical reactionsen
dc.subject.lcshGas-turbines -- Combustionen
dc.subject.lcshNitric oxideen
dc.subject.lcshNitrogen dioxideen
dc.titleAn experimental investigation of the conversion of NO to NO2 in a simulated gas turbine environmenten
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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