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dc.contributor.authorWang, Haoyi
dc.contributor.authorChen, Bingjie
dc.contributor.authorHan, Jie
dc.contributor.authorWang, Heng
dc.contributor.authorHansen, Nils
dc.contributor.authorSarathy, Mani
dc.date.accessioned2021-04-20T10:21:52Z
dc.date.available2021-04-20T10:21:52Z
dc.date.issued2017-01-01
dc.identifier.urihttp://hdl.handle.net/10754/668871
dc.description.abstractApplying external electric field show great performance on emission control, spark ignition, and combustion efficiency improvement in internal combustion engines and gas turbines. To understand the reason why soot, NOx and other pollutants can be suppressed by electric field, ion chemistry needs to be studied and developed. In this work, positive ions were measured in low pressure (P=60 Torr), burner stabilized, rich premixed methane/oxygen/argon flames. Detailed ion profiles were measured and identified as signals versus height-above-burner by utilizing a quadrupole molecular beam mass spectrometry (MBMS). Three equivalence ratios (ϕ=1.5, 1.8 and 2.0) were applied to investigate ion chemistry. Top three measured ions were identified as H3O+, C3H3+ and C2H3O+, along with some minor ions. When flames were slightly rich (ϕ=1.5), H3O+ had largest signal in the flame zone; however, when flames were very rich (ϕ=1.8 and 2.0), dominant ions changed to C3H3+, suggesting a different ion chemistry. Neutrals and radicals in the same flame (ϕ=1.5) were additionally measured by Photo Ionization Time-Of-Flight Molecular Beam Mass Spectrometry (PI-TOF-MBMS) to further investigate neutral-ion reactions. Correlations between neutrals and ions indicated major ion structures and ion reaction channels. This work can complete experimental data for methane flames combined with previous research, and offer new insights for future ion chemistry development.
dc.description.sponsorshipPrimary support of this work was from Clean Combustion Research Center in King Abdullah University of Science and Technology, Thuwal, Saudi Arabia. Neutral measurements were done with Sandia Flame Team collaboration at Advanced Light Source in Lawrence Berkeley National Laboratory, Berkeley, USA. ALS is supported by the Director, Office of Basic energy Sciences, of U.S. Department of Energy, under contract No. DEAC02-05CH11231. Sandia is a multi-program laboratory, operated by Sandia Corporation, a Lockheed Martin Company, for the National Nuclear Security Administration under contract No. DE-AC04-94-AL85000.
dc.publisherCombustion Institute
dc.rightsArchived with thanks to Combustion Institute
dc.titleIon chemistry investigation in rich methane premixed flames
dc.typeConference Paper
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentClean Combustion Research Center
dc.conference.date2017-12-10 to 2017-12-14
dc.conference.name11th Asia-Pacific Conference on Combustion, ASPACC 2017
dc.conference.locationSydney, NSW, AUS
dc.eprint.versionPost-print
dc.contributor.institutionMedia Group (Current address), Foshan City, Guangdong Province, China
dc.contributor.institutionCombustion Research Facility, Sandia National Laboratory Livermore, CA, 94551, United States
dc.identifier.volume2017-December
kaust.personWang, Haoyi
kaust.personChen, Bingjie
kaust.personHan, Jie
kaust.personWang, Heng
kaust.personSarathy, Mani
dc.identifier.eid2-s2.0-85046640481


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