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dc.contributor.authorDel Cont-Bernard, Davide
dc.contributor.authorGuiberti, Thibault
dc.contributor.authorLacoste, Deanna
dc.date.accessioned2020-10-13T11:49:27Z
dc.date.available2020-10-13T11:49:27Z
dc.date.issued2020-10-08
dc.date.submitted2019-11-06
dc.identifier.citationDel Cont-Bernard, D., Guiberti, T. F., & Lacoste, D. A. (2020). Laser induced fluorescence investigation of the chemical impact of nanosecond repetitively pulsed glow discharges on a laminar methane-air flame. Proceedings of the Combustion Institute. doi:10.1016/j.proci.2020.07.097
dc.identifier.issn1540-7489
dc.identifier.doi10.1016/j.proci.2020.07.097
dc.identifier.urihttp://hdl.handle.net/10754/665556
dc.description.abstractThis paper reports on an experimental investigation of the chemical impact of nanosecond repetitively pulsed (NRP) glow discharges on a laminar methane-air flame. The chosen configuration was a lean wall stabilized flame where NRP discharges were generated across the flame front. After careful selection of the excitation lines, planar laser induced fluorescence of OH and CH was conducted. Comparisons between the OH and CH fluorescence of a base flame (without plasma actuation), and those obtained during the steady state and the transient regimes of plasma actuation, were performed. First it is shown that during the steady state regime, the intensity of OH and CH fluorescence in the flame could be increased by up to 40% and 10%, respectively. In addition, the life time of OH fluorescence in the discharge channel was estimated to be between 3 and 4.5 µs. The transient regime at the beginning of plasma actuation showed that the flame began to be affected by the discharges long before OH fluorescence could be detected in the discharge channel, upstream of the flame. After 40 ms of plasma actuation, OH intensity began to increase simultaneously in both the flame and the discharge area. Based on current knowledge of nanosecond discharge chemistry, explanations for these results are proposed.
dc.description.sponsorshipThis work is funded by the King Abdullah University of Science and Technology, through the baseline fund BAS/1/1396-01-01.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S1540748920305472
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Proceedings of the Combustion Institute. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Proceedings of the Combustion Institute, [, , (2020-10-08)] DOI: 10.1016/j.proci.2020.07.097 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleLaser induced fluorescence investigation of the chemical impact of nanosecond repetitively pulsed glow discharges on a laminar methane-air flame
dc.typeArticle
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentClean Combustion Research Center
dc.identifier.journalProceedings of the Combustion Institute
dc.rights.embargodate2022-10-08
dc.eprint.versionPost-print
kaust.personDel Cont-Bernard, Davide
kaust.personGuiberti, Thibault
kaust.personLacoste, Deanna
kaust.grant.numberBAS/1/1396-01-01
dc.date.accepted2020-07-13
refterms.dateFOA2020-12-09T10:41:23Z
dc.date.published-online2020-10-08
dc.date.published-print2020-10


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