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dc.contributor.authorAlquaity, Awad
dc.contributor.authorHan, Jie
dc.contributor.authorChahine, May
dc.contributor.authorSelim, Hatem
dc.contributor.authorBelhi, Memdouh
dc.contributor.authorSarathy, Mani
dc.contributor.authorBisetti, Fabrizio
dc.contributor.authorFarooq, Aamir
dc.date.accessioned2017-04-13T11:50:57Z
dc.date.available2017-04-13T11:50:57Z
dc.date.issued2016-08-22
dc.identifier.citationAlquaity ABS, Han J, Chahine M, Selim H, Belhi M, et al. (2016) Measurements of Positively Charged Ions in Premixed Methane-Oxygen Atmospheric Flames. Combustion Science and Technology 189: 575–594. Available: http://dx.doi.org/10.1080/00102202.2016.1226821.
dc.identifier.issn0010-2202
dc.identifier.issn1563-521X
dc.identifier.doi10.1080/00102202.2016.1226821
dc.identifier.urihttp://hdl.handle.net/10754/623149
dc.description.abstractCations and anions are formed as a result of chemi-ionization processes in combustion systems. Electric fields can be applied to reduce emissions and improve combustion efficiency by active control of the combustion process. Detailed flame ion chemistry models are needed to understand and predict the effect of external electric fields on combustion plasmas. In this work, a molecular beam mass spectrometer (MBMS) is utilized to measure ion concentration profiles in premixed methane–oxygen argon burner-stabilized atmospheric flames. Lean and stoichiometric flames are considered to assess the dependence of ion chemistry on flame stoichiometry. Relative ion concentration profiles are compared with numerical simulations using various temperature profiles, and good qualitative agreement was observed for the stoichiometric flame. However, for the lean flame, numerical simulations misrepresent the spatial distribution of selected ions greatly. Three modifications are suggested to enhance the ion mechanism and improve the agreement between experiments and simulations. The first two modifications comprise the addition of anion detachment reactions to increase anion recombination at low temperatures. The third modification involves restoring a detachment reaction to its original irreversible form. To our knowledge, this work presents the first detailed measurements of cations and flame temperature in canonical methane–oxygen-argon atmospheric flat flames. The positive ion profiles reported here may be useful to validate and improve ion chemistry models for methane-oxygen flames.
dc.description.sponsorshipThis work was supported by an Academic Excellence Alliance (AEA) grant awarded by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research under the title Electromagnetically-Enhanced Combustion.
dc.publisherInforma UK Limited
dc.relation.urlhttp://www.tandfonline.com/doi/full/10.1080/00102202.2016.1226821
dc.subjectAnions
dc.subjectCations
dc.subjectIon chemistry model
dc.subjectMolecular beam mass spectrometry (MBMS)
dc.subjectMethane flames
dc.titleMeasurements of Positively Charged Ions in Premixed Methane-Oxygen Atmospheric Flames
dc.typeArticle
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentChemical Kinetics & Laser Sensors Laboratory
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentCombustion and Pyrolysis Chemistry (CPC) Group
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentReactive Flow Modeling Laboratory (RFML)
dc.identifier.journalCombustion Science and Technology
kaust.personAlquaity, Awad
kaust.personHan, Jie
kaust.personChahine, May
kaust.personSelim, Hatem
kaust.personBelhi, Memdouh
kaust.personSarathy, Mani
kaust.personBisetti, Fabrizio
kaust.personFarooq, Aamir
dc.relation.issupplementedbyDOI:10.6084/m9.figshare.3749832
display.relations<b> Is Supplemented By:</b> <br/> <ul><li><i>[Dataset]</i> <br/> Alquaity, A. B. S., Han, J., Chahine, M., Selim, H., Memdouh Belhi, S. Mani Sarathy, … Farooq, A. (2017). Measurements of Positively Charged Ions in Premixed Methane-Oxygen Atmospheric Flames. Figshare. https://doi.org/10.6084/m9.figshare.3749832. DOI: <a href="https://doi.org/10.6084/m9.figshare.3749832">10.6084/m9.figshare.3749832</a> HANDLE: <a href="http://hdl.handle.net/10754/624777">10754/624777</a></li></ul>
dc.date.published-online2016-08-22
dc.date.published-print2017-04-03


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