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dc.contributor.authorOsipova, K.N.
dc.contributor.authorSarathy, Mani
dc.contributor.authorKorobeinichev, O.P.
dc.contributor.authorShmakov, A.G.
dc.date.accessioned2020-07-29T07:23:12Z
dc.date.available2020-07-29T07:23:12Z
dc.date.issued2020-07-28
dc.date.submitted2019-11-06
dc.identifier.citationOsipova, K. N., Sarathy, S. M., Korobeinichev, O. P., & Shmakov, A. G. (2020). Chemical structure of atmospheric pressure premixed laminar formic acid/hydrogen flames. Proceedings of the Combustion Institute. doi:10.1016/j.proci.2020.06.033
dc.identifier.issn1540-7489
dc.identifier.doi10.1016/j.proci.2020.06.033
dc.identifier.urihttp://hdl.handle.net/10754/664484
dc.description.abstractThe work presents an experimental and kinetic modeling study of laminar premixed formic acid [HC(O)OH]/H2/O2/Ar flames at different equivalence ratios (φ=0.85, 1.1 and 1.3) stabilized on a flat burner at atmospheric pressure, as well as laminar flame speed of HC(O)OH/O2/Ar flames (φ=0.5–1.5) at 1 atm. Flame structure as well as laminar flame speed were simulated using three different detailed chemical kinetic mechanisms proposed for formic acid oxidation. The components in the fuel blends show different consumption profiles, namely, hydrogen is consumed slower than formic acid. According to kinetic analysis, the reason of the observed phenomenon is that the studied flames have hydrogen as a fuel but also as an intermediate product formed from HC(O)OH decomposition. Comparison of the measured and simulated flame structure shows that all the mechanisms satisfactorily predict the mole fraction profiles of the reactants, main products, and intermediates. It is noteworthy that the mechanisms proposed by Glarborg et al., Konnov et al. and the updated AramcoMech2.0 adequately predict the spatial variations in the mole fractions of free radicals, such as H, OH O and HO2. However, some drawbacks of the mechanisms used were identified; in particular, they predict different concentrations of CH2O. As for laminar flame speed simulations, the Konnov et al. mechanism predicts around two times higher values than in experiment, while the Glarborg et al. and updated AramcoMech2.0 show good agreement with the experimental data.
dc.description.sponsorshipThe research at King Abdullah University of Science and Technology (KAUST) was supported by Saudi Aramco.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S1540748920300596
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Proceedings of the Combustion Institute. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Proceedings of the Combustion Institute, [, , (2020-07-28)] DOI: 10.1016/j.proci.2020.06.033 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleChemical structure of atmospheric pressure premixed laminar formic acid/hydrogen flames
dc.typeArticle
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalProceedings of the Combustion Institute
dc.rights.embargodate2022-07-28
dc.eprint.versionPost-print
dc.contributor.institutionVoevodsky Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya str. 3, Novosibirsk 630090, Russian Federation.
dc.contributor.institutionNovosibirsk State University, Novosibirsk 630090, Russian Federation.
kaust.personSarathy, Mani
dc.date.accepted2020-06-07
refterms.dateFOA2020-07-29T12:10:55Z


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