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dc.contributor.authorPark, Daegeun
dc.contributor.authorChoi, Byungchul
dc.contributor.authorCha, Min Suk
dc.contributor.authorChung, Suk Ho
dc.date.accessioned2015-08-04T07:24:50Z
dc.date.available2015-08-04T07:24:50Z
dc.date.issued2014-04-23
dc.identifier.citationPark, D. G., Choi, B. C., Cha, M. S., & Chung, S. H. (2014). Soot Reduction Under DC Electric Fields in Counterflow Non-Premixed Laminar Ethylene Flames. Combustion Science and Technology, 186(4-5), 644–656. doi:10.1080/00102202.2014.883794
dc.identifier.issn00102202
dc.identifier.doi10.1080/00102202.2014.883794
dc.identifier.urihttp://hdl.handle.net/10754/564909
dc.description.abstractThe effects of DC electric fields on non-premixed ethylene flames in a counterflow burner were studied experimentally with a focus on the reduction of soot particles. The experiment was conducted by connecting a high voltage terminal and a ground terminal to a lower (fuel) and upper (oxidizer) nozzle, respectively. We applied direct current (DC) potentials in a range of -5 kV < Vdc < 5 kV. Uniform electric fields were then generated in the gap between the two nozzles. The experimental conditions were selected to cover both soot formation (SF) and soot formation oxidation (SFO) flames. The flames subjected to the negative electric fields moved toward the fuel nozzle because of an ionic wind due to the Lorentz force acting on the positive ions in the flames. In addition, the yellow luminosity significantly decreased, indicating changes in the sooting characteristics. To analyze the sooting characteristics under the electric fields, planar laser induced incandescence (PLII) and fluorescence (PLIF) techniques were used to visualize the soot, polycyclic aromatic hydrocarbons (PAHs), and OH radicals. The sooting limits in terms of the fuel and oxygen mole fractions were measured. No substantial soot formation due to the effects of the DC electric fields for the tested range of voltages and reactant mole fractions could be identified. The detailed flame behaviors and sooting characteristics under the DC electric fields are discussed. Copyright © Taylor & Francis Group, LLC.
dc.description.sponsorshipThis work was supported by the KAUST AEA Project.
dc.publisherInforma UK Limited
dc.subjectCounterflow
dc.titleSoot reduction under DC electric fields in counterflow non-premixed laminar ethylene 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.journalCombustion Science and Technology
dc.contributor.institutionShip and Plant Research Team, Korean Register of Shipping, Seoul, South Korea
kaust.personCha, Min Suk
kaust.personChung, Suk Ho
kaust.personPark, Daegeun
dc.date.published-online2014-04-23
dc.date.published-print2014-05-04


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