Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chamber

Detalhes bibliográficos
Autor(a) principal: Bertran,Celso A.
Data de Publicação: 2002
Outros Autores: Marques,Carla S. T., Benvenutti,Leandro H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000100007
Resumo: An experimental study of soot formation in C2H2/O2 flames at different C/O ratios in a closed chamber was carried out. The evolution temporal behavior and the volume fraction of soot particles were determined by laser extinction. It was found that total time for the soot formation phenomenon in flames from C2H2/O2 with C/O ratio > 0.75 or C2H2/O2/Ar with C/O ratio = 1.00 was around 3.0-4.0 ms after ignition. At almost the same time the excited radicals reached their maximum emission intensity and the gases under combustion reached their maximum pressure. The micrographs show compact and approximately spherical soot particles with diameters within 60-150 nm. However, soot aggregates are not compact and they present a netlike structure similar to that of an aerogel.
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spelling Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chambersoot formationclosed chambercombustionlaser extinctionAn experimental study of soot formation in C2H2/O2 flames at different C/O ratios in a closed chamber was carried out. The evolution temporal behavior and the volume fraction of soot particles were determined by laser extinction. It was found that total time for the soot formation phenomenon in flames from C2H2/O2 with C/O ratio > 0.75 or C2H2/O2/Ar with C/O ratio = 1.00 was around 3.0-4.0 ms after ignition. At almost the same time the excited radicals reached their maximum emission intensity and the gases under combustion reached their maximum pressure. The micrographs show compact and approximately spherical soot particles with diameters within 60-150 nm. However, soot aggregates are not compact and they present a netlike structure similar to that of an aerogel.Sociedade Brasileira de Química2002-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000100007Journal of the Brazilian Chemical Society v.13 n.1 2002reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532002000100007info:eu-repo/semantics/openAccessBertran,Celso A.Marques,Carla S. T.Benvenutti,Leandro H.eng2002-06-20T00:00:00Zoai:scielo:S0103-50532002000100007Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2002-06-20T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chamber
title Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chamber
spellingShingle Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chamber
Bertran,Celso A.
soot formation
closed chamber
combustion
laser extinction
title_short Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chamber
title_full Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chamber
title_fullStr Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chamber
title_full_unstemmed Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chamber
title_sort Temporal Evolution of Soot Particles from C2H2/O2 Combustion in a Closed Chamber
author Bertran,Celso A.
author_facet Bertran,Celso A.
Marques,Carla S. T.
Benvenutti,Leandro H.
author_role author
author2 Marques,Carla S. T.
Benvenutti,Leandro H.
author2_role author
author
dc.contributor.author.fl_str_mv Bertran,Celso A.
Marques,Carla S. T.
Benvenutti,Leandro H.
dc.subject.por.fl_str_mv soot formation
closed chamber
combustion
laser extinction
topic soot formation
closed chamber
combustion
laser extinction
description An experimental study of soot formation in C2H2/O2 flames at different C/O ratios in a closed chamber was carried out. The evolution temporal behavior and the volume fraction of soot particles were determined by laser extinction. It was found that total time for the soot formation phenomenon in flames from C2H2/O2 with C/O ratio > 0.75 or C2H2/O2/Ar with C/O ratio = 1.00 was around 3.0-4.0 ms after ignition. At almost the same time the excited radicals reached their maximum emission intensity and the gases under combustion reached their maximum pressure. The micrographs show compact and approximately spherical soot particles with diameters within 60-150 nm. However, soot aggregates are not compact and they present a netlike structure similar to that of an aerogel.
publishDate 2002
dc.date.none.fl_str_mv 2002-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000100007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000100007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532002000100007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.13 n.1 2002
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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