Observations on Upstream Flame Propagation in Ignited Hydrocarbon Jets

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dc.contributor.advisor Dr. Kevin Lyons, Committee Chair en_US
dc.contributor.advisor Dr. James Leach, Committee Member en_US
dc.contributor.advisor Dr. Eric Klang, Committee Member en_US
dc.contributor.author McCraw, Jennifer Leigh en_US
dc.date.accessioned 2010-04-02T17:54:41Z
dc.date.available 2010-04-02T17:54:41Z
dc.date.issued 2006-05-09 en_US
dc.identifier.other etd-03312006-002715 en_US
dc.identifier.uri http://www.lib.ncsu.edu/resolver/1840.16/318
dc.description.abstract Studies are presented that examine the development of combustion in an initially non-reacting methane jet after ignition at a downstream location. Image measurements depicting the axial location of a fixed energy ignition source that permits transient flame propagation back to the nozzle are presented. The results from the experimental investigations are discussed. Nine different cases were investigated in order to determine the major parameters that impact the axial location of the ignition source at which flame propagation back to the burner was permitted. When the ignition source was located at larger axial distances than those indicated, flame propagation upstream to the burner was not possible and, instead, the flame blew out. The Reynolds number of the jet, the scalar field and the air co-flow magnitude were investigated for their contributions. A standard digital video camera was used in order to film the ignition of the jet and to determine the farthest axial location from the burner at which upstream flame propagation was possible. With the aid of computer software, the height for each case was determined. Conclusions to the effect these parameters had on the axial location are discussed as well as the implications for the physics governing the process. en_US
dc.rights I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. en_US
dc.subject Combustion en_US
dc.subject Premixed Flame en_US
dc.subject Flame Propagation en_US
dc.subject Flame Stabilization en_US
dc.title Observations on Upstream Flame Propagation in Ignited Hydrocarbon Jets en_US
dc.degree.name MS en_US
dc.degree.level thesis en_US
dc.degree.discipline Mechanical Engineering en_US


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