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Measurements of OH* and CH* Chemiluminescence in Premixed Flames in a Constant Volume Combustion Bomb under Autoignition Conditions

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Measurements of OH* and CH* Chemiluminescence in Premixed Flames in a Constant Volume Combustion Bomb under Autoignition Conditions

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dc.contributor.author Tinaut Fluixa, Francisco Vicente es_ES
dc.contributor.author Reyes, M. es_ES
dc.contributor.author Giménez, B. es_ES
dc.contributor.author Pastor Soriano, José Vicente es_ES
dc.date.accessioned 2014-09-16T11:50:49Z
dc.date.issued 2011
dc.identifier.issn 0887-0624
dc.identifier.uri http://hdl.handle.net/10251/39682
dc.description.abstract The objectives of this paper are as follows: (1) To study parametrically OH* and CH* chemiluminescence trace evolution as a function of the initial pressure, temperature, and equivalence ratio of premixed flames of n-heptane, under autoignition conditions, in a constant volume combustion bomb. The signals of the electronically excited states of OH* (306 nm) and CH* (430 nm) have been detected through band-pass filters with two photomultiplier tubes placed in an optical access of the combustion bomb. (2) To determine the feasibility of using OH* and CH* chemiluminescence signals as active-control parameters for premixed flames. For this purpose, a correlation between OH* chemiluminescence emissions and the equivalence ratio and the rate of heat release during the combustion process is obtained, as well as a correlation between CH* chemiluminescence emissions and the adiabatic flame temperature. (3) To investigate the relationship between the OH* and CH* chemiluminescent emissions in premixed combustions of n-heptane, iso-octane, and a mixture of 50% n-heptane and 50% toluene and the equivalence fuel/air ratio for a given initial temperature and pressure. To reach these objectives, measurements of OH* and CH* chemiluminescences from premixed flames of n-heptane with autoignition are reported at equivalence ratios ranging from 0.8 to 1.0, in a constant volume combustion bomb. The morphology of the curves and the relationships with parameters of interest during the combustion process (i.e., the rate of heat release, burned temperature, etc.) are studied. In addition, premixed combustions of iso-octane, n-heptane, and a mixture of n-heptane and toluene are also investigated at different fuel/air equivalence ratios for a given initial pressure and temperature, to assess the possibility of using the ratio between the OH* and CH* chemiluminescence signals to monitorize the equivalence ratio during the combustion, as other authors have considered previously. © 2010 American Chemical Society. es_ES
dc.description.sponsorship The authors of this paper thank the Spanish Ministry of Science and Technology for the financial support of this research through the project TRA2007-67961-C03/AUT and the Regional Government of Castile and Leon through the funding for the GR203 Excellence Research Group. The authors also appreciate the help provided by Dr. Carot for the statistical design of experiments. en_EN
dc.language Inglés es_ES
dc.publisher American Chemical Society es_ES
dc.relation Spanish Ministry of Science and Technology [TRA2007-67961-C03/AUT] es_ES
dc.relation Regional Government of Castile and Leon through GR203 Excellence Research Group es_ES
dc.relation.ispartof ENERGY & FUELS es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Adiabatic flame temperature es_ES
dc.subject Auto-ignition es_ES
dc.subject Combustion bomb es_ES
dc.subject Combustion pro-cess es_ES
dc.subject Constant volume combustion bomb es_ES
dc.subject Control parameters es_ES
dc.subject Equivalence ratios es_ES
dc.subject Fuel/air ratio es_ES
dc.subject Initial pressure es_ES
dc.subject Iso-Octane es_ES
dc.subject N-Heptanes es_ES
dc.subject Optical access es_ES
dc.subject Photo multiplier tube es_ES
dc.subject Premixed combustion es_ES
dc.subject Premixed Flame es_ES
dc.subject Rate of heat release es_ES
dc.subject Bandpass filters es_ES
dc.subject Bombs (ordnance) es_ES
dc.subject Chemiluminescence es_ES
dc.subject Combustors es_ES
dc.subject Equivalence classes es_ES
dc.subject Functions es_ES
dc.subject Heptane es_ES
dc.subject Photomultipliers es_ES
dc.subject Toluene es_ES
dc.subject Combustion es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Measurements of OH* and CH* Chemiluminescence in Premixed Flames in a Constant Volume Combustion Bomb under Autoignition Conditions es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1021/ef1013456
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Tinaut Fluixa, FV.; Reyes, M.; Giménez, B.; Pastor Soriano, JV. (2011). Measurements of OH* and CH* Chemiluminescence in Premixed Flames in a Constant Volume Combustion Bomb under Autoignition Conditions. ENERGY & FUELS. 25:119-129. doi:10.1021/ef1013456 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1021/ef1013456 es_ES
dc.description.upvformatpinicio 119 es_ES
dc.description.upvformatpfin 129 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 25 es_ES
dc.relation.senia 39518
dc.identifier.eissn 1520-5029


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