Gas concentration and temperature excited Delft turbulent jet in acoustically flames

Página do item simplificado
dc.contributor.authorRocha, Ana Maura A. [UNESP]
dc.contributor.authorCarvalho, Joao A.
dc.contributor.authorLacava, Pedro T.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionNatl Space Res Inst
dc.contributor.institutionInstituto Tecnológico de Aeronáutica (ITA)
dc.date.accessioned2014-05-20T15:32:24Z
dc.date.available2014-05-20T15:32:24Z
dc.date.issued2008-11-01
dc.description.abstractThis paper shows the experimental results for changes in the flame structure when acoustic fields are applied in natural gas Delft turbulent diffusion flames. The acoustic field (pulsating combustion) generates zones of intense mixture of reactants in the flame region, promoting a more complete combustion and, consequently, lower pollutant emissions, increase in convective heat transfer rates, and lower fuel consumption. The results show that the presence of the acoustic field changes drastically the flame structure, mainly in the burner natural frequencies. However, for higher acoustic amplitudes, or acoustic pressures, a hydrogen pilot flame is necessary in Older to keep the main flame anchored. In the flame regions where the acoustic field is more intense, premixed flame characteristics were observed. Besides, the pulsating regime modifies the axial and radial combustion structure, which could be verified by the radial distribution of concentrations of O-2, CO, CO2, and NOx, and by the temperature profile. The experiments also presented the reduction of flame length with the increase of acoustic amplitude. (c) 2008 Published by Elsevier Ltd.en
dc.description.affiliationSão Paulo State Univ, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationNatl Space Res Inst, Combust & Prop Associate Lab, BR-12630000 Cachoeira Paulista, SP, Brazil
dc.description.affiliationTechnol Inst Aeronaut, Dept Prop, BR-12228900 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, BR-12516410 Guaratingueta, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCNPq: 501882/2003
dc.description.sponsorshipIdFAPESP: 02/12802-0
dc.format.extent3433-3444
dc.identifierhttp://dx.doi.org/10.1016/j.fuel.2008.01.010
dc.identifier.citationFuel. Oxford: Elsevier B.V., v. 87, n. 15-16, p. 3433-3444, 2008.
dc.identifier.doi10.1016/j.fuel.2008.01.010
dc.identifier.issn0016-2361
dc.identifier.urihttp://hdl.handle.net/11449/41313
dc.identifier.wosWOS:000258890700036
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofFuel
dc.relation.ispartofjcr4.908
dc.relation.ispartofsjr1,891
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectpulsating combustionen
dc.subjectturbulent jet flamesen
dc.subjectacoustically excited flameen
dc.subjectDelft burneren
dc.titleGas concentration and temperature excited Delft turbulent jet in acoustically flamesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.

Arquivos

Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos