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dc.contributor.authorJoo, Peter H.
dc.contributor.authorWang, Yu
dc.contributor.authorRaj, Abhijeet
dc.contributor.authorChung, Suk Ho
dc.date.accessioned2015-08-03T10:44:08Z
dc.date.available2015-08-03T10:44:08Z
dc.date.issued2013-01
dc.identifier.citationJoo, P. H., Wang, Y., Raj, A., & Chung, S. H. (2013). Sooting limit in counterflow diffusion flames of ethylene/propane fuels and implication to threshold soot index. Proceedings of the Combustion Institute, 34(1), 1803–1809. doi:10.1016/j.proci.2012.06.124
dc.identifier.issn15407489
dc.identifier.doi10.1016/j.proci.2012.06.124
dc.identifier.urihttp://hdl.handle.net/10754/562596
dc.description.abstractSooting limits in counterflow diffusion flames of propane/ethylene fuels have been studied experimentally using a light scattering technique, including the effects of dilution, fuel mixing, and strain rate. The results are discussed in view of the threshold soot index (TSI). In soot-formation (SF) flames, where the flame is located on the oxidizer side of the stagnation plane, the sooting limit depends critically on fuel type and subsequently on flame temperature. The sooting limit has a non-linear dependence on the fuel-mixing ratio, which is similar to the non-linear mixing rule for TSI observed experimentally in rich premixed flames, where soot oxidation is absent for both SF and rich premixed flames. In soot-formation-oxidation (SFO) flames, where the flame is located on the fuel side, the sooting limit depends critically on flame temperature, while it is relatively independent on fuel type. This result suggests a linear mixing rule for sooting limits in SFO flames, which is similar to the TSI behavior for coflow diffusion flames. Soot oxidation takes place for both types of flames. The aerodynamic strain effect on the sooting limits has also been studied and an appreciable influence has been observed. Under sooting conditions, soot volume fraction was measured using a light extinction technique. The soot loadings in SF flames of the mixture fuels demonstrated a synergistic effect, i.e., soot production increased for certain mixture fuels as compared to the respective singlecomponent fuels. © 2012 The Combustion Institute.
dc.description.sponsorshipThis work is supported by Saudi Aramco through KAUST CCRC.
dc.publisherElsevier BV
dc.subjectCounterflow diffusion flame
dc.subjectSoot
dc.subjectSooting limit
dc.subjectSynergistic effect
dc.subjectThreshold soot index (TSI)
dc.titleSooting limit in counterflow diffusion flames of ethylene/propane fuels and implication to threshold soot index
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.personWang, Yu
kaust.personRaj, Abhijeet
kaust.personChung, Suk Ho
kaust.personJoo, Peter H.


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