Soot formation characteristics of gasoline surrogate fuels in counterflow diffusion flames

Handle URI:
http://hdl.handle.net/10754/561597
Title:
Soot formation characteristics of gasoline surrogate fuels in counterflow diffusion flames
Authors:
Choi, Byungchul; Choi, Sangkyu; Chung, Suk-Ho ( 0000-0001-8782-312X )
Abstract:
The 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.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Combustion and Laser Diagnostics Laboratory
Publisher:
Elsevier
Journal:
Proceedings of the Combustion Institute
Issue Date:
2011
DOI:
10.1016/j.proci.2010.06.067
Type:
Article
ISSN:
15407489
Sponsors:
This work was supported by Saudi Aramco through KAUST CCRC.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorChoi, Byungchulen
dc.contributor.authorChoi, Sangkyuen
dc.contributor.authorChung, Suk-Hoen
dc.date.accessioned2015-08-02T09:15:02Zen
dc.date.available2015-08-02T09:15:02Zen
dc.date.issued2011en
dc.identifier.issn15407489en
dc.identifier.doi10.1016/j.proci.2010.06.067en
dc.identifier.urihttp://hdl.handle.net/10754/561597en
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.en
dc.description.sponsorshipThis work was supported by Saudi Aramco through KAUST CCRC.en
dc.publisherElsevieren
dc.subjectGasoline surrogate fuelen
dc.subjectLaser-induced fluorescenceen
dc.subjectLaser-induced incandescenceen
dc.subjectPolycyclic aromatic hydrocarbon (PAH)en
dc.subjectSooten
dc.titleSoot formation characteristics of gasoline surrogate fuels in counterflow diffusion flamesen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentCombustion and Laser Diagnostics Laboratoryen
dc.identifier.journalProceedings of the Combustion Instituteen
kaust.authorChoi, Byungchulen
kaust.authorChoi, Sangkyuen
kaust.authorChung, Suk-Hoen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.