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dc.contributor.authorChoi, Byungchul
dc.contributor.authorChoi, Sangkyu
dc.contributor.authorChung, Suk Ho
dc.date.accessioned2015-08-02T09:15:02Z
dc.date.available2015-08-02T09:15:02Z
dc.date.issued2011
dc.identifier.issn15407489
dc.identifier.doi10.1016/j.proci.2010.06.067
dc.identifier.urihttp://hdl.handle.net/10754/561597
dc.description.abstractThe characteristics of polycyclic aromatic hydrocarbon (PAH) and soot for gasoline surrogate fuels have been investigated in counterflow diffusion flames by adopting laser-induced fluorescence (LIF) and laser-induced incandescence (LII) techniques for both soot formation and soot formation/oxidation flames. Tested fuels were three binary mixtures from the primary reference fuels of n-heptane, iso-octane, and toluene. The result showed that PAH and soot maintained near zero level for all mixtures of n-heptane/iso-octane case under present experimental conditions. For n-heptane/toluene and iso-octane/toluene mixtures, PAH initially increased and then decreased with the toluene ratio, exhibiting a synergistic effect. The soot formation increased monotonically with the toluene ratio, however the effect of toluene on soot formation was minimal for relatively small toluene ratios. These results implied that even though toluene had a dominant role in soot and PAH formations, small amount of toluene had a minimal effect on soot formation. Numerical simulations have also been conducted by adopting recently proposed two kinetic mechanisms. The synergistic behavior of aromatic rings was predicted similar to the experimental PAH measurement, however, the degree of the synergistic effect was over-predicted for the soot formation flame, indicating the need for refinements in the kinetic mechanisms. © 2010 Published by Elsevier Inc. on behalf of The Combustion Institute. All rights reserved.
dc.description.sponsorshipThis work was supported by Saudi Aramco through KAUST CCRC.
dc.publisherElsevier BV
dc.subjectGasoline surrogate fuel
dc.subjectLaser-induced fluorescence
dc.subjectLaser-induced incandescence
dc.subjectPolycyclic aromatic hydrocarbon (PAH)
dc.subjectSoot
dc.titleSoot formation characteristics of gasoline surrogate fuels in counterflow diffusion flames
dc.typeArticle
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentCombustion and Laser Diagnostics Laboratory
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalProceedings of the Combustion Institute
kaust.personChoi, Byungchul
kaust.personChoi, Sangkyu
kaust.personChung, Suk Ho


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