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Burning Velocity of Turbulent Methane/Air Premixed Flames in Subatmospheric Environments

dc.creatorVargas A.C.
dc.creatorGarciá A.M.
dc.creatorArrieta C.E.
dc.creatorSierra Del Rio J.
dc.creatorAmell A.
dc.date2020
dc.date.accessioned2021-02-05T14:57:57Z
dc.date.available2021-02-05T14:57:57Z
dc.identifier.issn24701343
dc.identifier.urihttp://hdl.handle.net/11407/5925
dc.descriptionThe aim of our work was to study turbulent premixed flames in subatmospheric conditions. For this purpose, turbulent premixed flames of lean methane/air mixtures were stabilized in a nozzle-type Bunsen burner and analyzed using Schlieren visualization and image processing to calculate turbulent burning velocities by the mean-angle method. Moreover, hot-wire anemometer measurements were performed to characterize the turbulent aspects of the flow. The environmental conditions were 0.85 atm, 0.98 atm, and 295 ± 2 K. The turbulence-flame interaction was analyzed based on the geometric parameters combined with laminar flame properties (which were experimentally and numerically determined), integral length scale, and Kolmogorov length scale. Our results show that the effects of subatmospheric pressure on turbulent burning velocity are significant. The ratio between turbulent and laminar burning velocities increases with turbulence intensity, but this effect tends to decrease as the atmospheric pressure is reduced. We propose a general empirical correlation as a function between ST/SL and u′/SL based on the experimental results obtained in this study and the equivalence ratio and pressure we established. Copyright © 2020 American Chemical Society.
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85092336675&doi=10.1021%2facsomega.0c02670&partnerID=40&md5=f23024f2866ac6a881883c9c35852b09
dc.sourceACS Omega
dc.titleBurning Velocity of Turbulent Methane/Air Premixed Flames in Subatmospheric Environments
dc.typeArticleeng
dc.rights.accessrightsinfo:eu-repo/semantics/restrictedAccess
dc.publisher.programIngeniería en Energíaspa
dc.identifier.doi10.1021/acsomega.0c02670
dc.publisher.facultyFacultad de Ingenieríasspa
dc.affiliationVargas, A.C., Grupo de Investigación de Materiales Avanzados y Energlá, Instituto Tecnológico Metropolitano, Medellín, 050034, Colombia
dc.affiliationGarciá, A.M., Grupo de Ciencia y Tecnologlá del Gas y Uso Racional de la Energlá, Facultad de Ingenierlá, Universidad de Antioquia, Medellín, 050010, Colombia
dc.affiliationArrieta, C.E., Grupo de Ingenierlá en Energlá, Facultad de Ingenierlá, Universidad de Medellĺn, Medellín, 050026, Colombia
dc.affiliationSierra Del Rio, J., Grupo de Investigación de Materiales Avanzados y Energlá, Instituto Tecnológico Metropolitano, Medellín, 050034, Colombia
dc.affiliationAmell, A., Grupo de Ciencia y Tecnologlá del Gas y Uso Racional de la Energlá, Facultad de Ingenierlá, Universidad de Antioquia, Medellín, 050010, Colombia
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dc.type.driverinfo:eu-repo/semantics/article


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