CH and C2 radicals characterization in natural gas turbulent diffusion flames

Detalhes bibliográficos
Autor(a) principal: Martins, C. A.
Data de Publicação: 2005
Outros Autores: Pimenta, A. P., Carvalho, J. A. [UNESP], Ferreira, M. A., Caldeira-Pires, A. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S1678-58782005000200003
http://hdl.handle.net/11449/68181
Resumo: This paper reports the construction of an axisymmetric nonpremixed piloted jet burner, with well-defined initial and boundary conditions, known as the Delft burner, to assess turbulence-chemistry interaction in non-premixed turbulent flames. Detailed experimental information is described, involving hot-wire anemometry, thin-wire thermocouples and chemiluminescence visualization measurements. Radial profile of the axial mean velocity indicates excellent agreement between flow patterns developed within Delft installation and the one described herein. Chemiluminescence emissions from CH and C2 free-radicals were acquired with a CCD camera. Tomography reconstruction analysis was utilised to compare radical emissions and temperature spatial distributions. There was a strong dependence between temperature and CH/C 2 emissions. This is an indication that these radicals can be used in flame front studies.
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spelling CH and C2 radicals characterization in natural gas turbulent diffusion flamesFlame tomographyFlame turbulenceGaseous fuel diffusion flamesThin-wire termocouplesCarbonDiffusionFlammabilityFree radicalsJetsNatural gasNozzlesThermocouplesTomographyTurbulent flowThin wire thermocouplesGas burnersThis paper reports the construction of an axisymmetric nonpremixed piloted jet burner, with well-defined initial and boundary conditions, known as the Delft burner, to assess turbulence-chemistry interaction in non-premixed turbulent flames. Detailed experimental information is described, involving hot-wire anemometry, thin-wire thermocouples and chemiluminescence visualization measurements. Radial profile of the axial mean velocity indicates excellent agreement between flow patterns developed within Delft installation and the one described herein. Chemiluminescence emissions from CH and C2 free-radicals were acquired with a CCD camera. Tomography reconstruction analysis was utilised to compare radical emissions and temperature spatial distributions. There was a strong dependence between temperature and CH/C 2 emissions. This is an indication that these radicals can be used in flame front studies.Departamento de Propulsão Instituto Tecnológico de Aeronáutica CentroTécnico Aeroespacial, 50, Vila das Acacias, 12228-900 Sao Jose dos Campos, SPUniversidade Estadual Paulista Campus de Guaratinguetá Depto. de Energia, Av. Dr. Ariberto Pereira Cunha, 333, 12500-000 Guaratinguetá, SPLaboratório Associado de Combustão e Propulsão Instituto Nacional de Pesquisas Espaciais, Rodovia Presidente Dutra Km 40, 12630-000 Cachoeira Paulista, SPDepartamento de Engenharia Mecânica Universidade de Brasilia Campus Universitário Darcy Ribeiro, 70910-900 Brasília, DFUniversidade Estadual Paulista Campus de Guaratinguetá Depto. de Energia, Av. Dr. Ariberto Pereira Cunha, 333, 12500-000 Guaratinguetá, SPCentroTécnico AeroespacialUniversidade Estadual Paulista (Unesp)Instituto Nacional de Pesquisas Espaciais (INPE)Universidade de Brasília (UnB)Martins, C. A.Pimenta, A. P.Carvalho, J. A. [UNESP]Ferreira, M. A.Caldeira-Pires, A. A.2014-05-27T11:21:18Z2014-05-27T11:21:18Z2005-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article110-117application/pdfhttp://dx.doi.org/10.1590/S1678-58782005000200003Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 27, n. 2, p. 110-117, 2005.1678-5878http://hdl.handle.net/11449/6818110.1590/S1678-58782005000200003S1678-587820050002000032-s2.0-208444595412-s2.0-20844459541.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Society of Mechanical Sciences and Engineering1.6270,362info:eu-repo/semantics/openAccess2023-11-15T06:17:40Zoai:repositorio.unesp.br:11449/68181Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-15T06:17:40Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv CH and C2 radicals characterization in natural gas turbulent diffusion flames
title CH and C2 radicals characterization in natural gas turbulent diffusion flames
spellingShingle CH and C2 radicals characterization in natural gas turbulent diffusion flames
Martins, C. A.
Flame tomography
Flame turbulence
Gaseous fuel diffusion flames
Thin-wire termocouples
Carbon
Diffusion
Flammability
Free radicals
Jets
Natural gas
Nozzles
Thermocouples
Tomography
Turbulent flow
Thin wire thermocouples
Gas burners
title_short CH and C2 radicals characterization in natural gas turbulent diffusion flames
title_full CH and C2 radicals characterization in natural gas turbulent diffusion flames
title_fullStr CH and C2 radicals characterization in natural gas turbulent diffusion flames
title_full_unstemmed CH and C2 radicals characterization in natural gas turbulent diffusion flames
title_sort CH and C2 radicals characterization in natural gas turbulent diffusion flames
author Martins, C. A.
author_facet Martins, C. A.
Pimenta, A. P.
Carvalho, J. A. [UNESP]
Ferreira, M. A.
Caldeira-Pires, A. A.
author_role author
author2 Pimenta, A. P.
Carvalho, J. A. [UNESP]
Ferreira, M. A.
Caldeira-Pires, A. A.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv CentroTécnico Aeroespacial
Universidade Estadual Paulista (Unesp)
Instituto Nacional de Pesquisas Espaciais (INPE)
Universidade de Brasília (UnB)
dc.contributor.author.fl_str_mv Martins, C. A.
Pimenta, A. P.
Carvalho, J. A. [UNESP]
Ferreira, M. A.
Caldeira-Pires, A. A.
dc.subject.por.fl_str_mv Flame tomography
Flame turbulence
Gaseous fuel diffusion flames
Thin-wire termocouples
Carbon
Diffusion
Flammability
Free radicals
Jets
Natural gas
Nozzles
Thermocouples
Tomography
Turbulent flow
Thin wire thermocouples
Gas burners
topic Flame tomography
Flame turbulence
Gaseous fuel diffusion flames
Thin-wire termocouples
Carbon
Diffusion
Flammability
Free radicals
Jets
Natural gas
Nozzles
Thermocouples
Tomography
Turbulent flow
Thin wire thermocouples
Gas burners
description This paper reports the construction of an axisymmetric nonpremixed piloted jet burner, with well-defined initial and boundary conditions, known as the Delft burner, to assess turbulence-chemistry interaction in non-premixed turbulent flames. Detailed experimental information is described, involving hot-wire anemometry, thin-wire thermocouples and chemiluminescence visualization measurements. Radial profile of the axial mean velocity indicates excellent agreement between flow patterns developed within Delft installation and the one described herein. Chemiluminescence emissions from CH and C2 free-radicals were acquired with a CCD camera. Tomography reconstruction analysis was utilised to compare radical emissions and temperature spatial distributions. There was a strong dependence between temperature and CH/C 2 emissions. This is an indication that these radicals can be used in flame front studies.
publishDate 2005
dc.date.none.fl_str_mv 2005-04-01
2014-05-27T11:21:18Z
2014-05-27T11:21:18Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S1678-58782005000200003
Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 27, n. 2, p. 110-117, 2005.
1678-5878
http://hdl.handle.net/11449/68181
10.1590/S1678-58782005000200003
S1678-58782005000200003
2-s2.0-20844459541
2-s2.0-20844459541.pdf
url http://dx.doi.org/10.1590/S1678-58782005000200003
http://hdl.handle.net/11449/68181
identifier_str_mv Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 27, n. 2, p. 110-117, 2005.
1678-5878
10.1590/S1678-58782005000200003
S1678-58782005000200003
2-s2.0-20844459541
2-s2.0-20844459541.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of the Brazilian Society of Mechanical Sciences and Engineering
1.627
0,362
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 110-117
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1799964948642660352

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