| Tipo da Referência | Conference Proceedings | |||
| Identificador | 8JMKD3MGP5W34M/3GTP9PH | |||
| Repositório | sid.inpe.br/mtc-m21b/2014/08.28.17.04 | |||
| Metadados | sid.inpe.br/mtc-m21b/2014/08.28.17.04.45 | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Chave Secundária | INPE--PRE/ | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Chave de Citação | AssisFach:2014:DyFlNa | |||
| Autor | 1 Assis, Giovanna Querido Marcondes de 2 Fachini Filho, Fernando | |||
| Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JH48 | |||
| Grupo | 1 2 LCP-CTE-INPE-MCTI-GOV-BR | |||
| Afiliação | 1 Universidade Federal de Itajubá (UNIFEI) 2 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Endereço de e-Mail do Autor | 1 giovannaqmassis@gmail.com 2 fachini@lcp.inpe.br | |||
| Título | Dynamics of flame in narrow channel  | |||
| Nome do Evento | Seminário de Iniciação Científica do INPE (SICINPE). | |||
| Ano | 2014 | |||
| Título do Livro | Anais | |||
| Data | 30-31 jul., 2014 | |||
| Cidade da Editora | São José dos Campos | |||
| Editora (Publisher) | INPE | |||
| Localização do Evento | São José dos Campos | |||
| Palavras-Chave | flames, narrow channel. | |||
| Resumo | We analyse premixed flames inside a narrow channel. This topic matters the most when it comes to security and propulsion. It's study started in order to analyze flames propagating in coal mines, contributing later on to chemical industries. Intrinsically, the problem is two-dimensional, but applying weight mean procedure, it is possible to describe the problem with 1D conservation equations making usage of convective heat transfer model. Considering the gas and solid phase conjugated problem, the system is adiabatic, then all heat transferred from the flame to the tube walls returns to the fuel mixture. As in most cases the heat conductivity in the solid phase is much faster than that in the gas phase, problem's description requires two main thermal zones with very different length scales. The largest scaled one is associated to solid phase conduction, while the smallest reefers to the gas phase. The analysis focused in showing the influence of these two thermal zones, once their differences contribute to the understanding of the propagation of heat on the channel wall and on the flame. Similar studies on this, however treated in porous media, show that the flame temperature will probably rise above the adiabatic values. Solving the particular equations of mass, energy and species conservation, it is used the method of singular perturbations (asymptotic expansion), mating outcomes for different regions. The perturbation theory provides solutions as series expansions having as parameter the ratio between the thermal conductivities of the solid and gas phases. Other parameters in the mathematical formulation are oxygen and fuel's Lewis numbers and also the convective heat transfer parameter. For conditions in which the convective heat transfer parameter is close to unit, the two phases are not in thermal equilibrium, so the heat circulation between phases happens largely and the flame temperature can reach up to twice the adiabatic temperature (theoretically estimated value). Further, a third region is analyzed along this work. It has a heat-reactive character and its length scale is appropriate to describe the flame inner structure. The inner region study coupled with the outer region one solves the problem. | |||
| Notas | Bolsa PIBIC/INPE/CNPq | |||
| Idioma | pt | |||
| Tipo Secundário | PRE CN | |||
| Area | COMB | |||
| Tamanho | 192 KiB | |||
| Número de Arquivos | 1 | |||
| Arquivo Alvo | Assis_dinamica.pdf | |||
| Última Atualização | 2020:07.06.18.45.24 sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 simone | |||
| Última Atualização dos Metadados | 2020:07.06.18.45.25 sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 simone {D 2014} | |||
| Estágio do Documento | concluido | |||
| É a matriz ou uma cópia? | é a matriz | |||
| Espelho | iconet.com.br/banon/2006/11.26.21.31 | |||
| Endereço de e-Mail | marcelo.pazos@inpe.br | |||
| e-Mail (login) | simone | |||
| Grupo de Usuários | marcelo.pazos@inpe.br | |||
| Grupo de Leitores | administrator marcelo.pazos@inpe.br simone | |||
| Visibilidade | shown | |||
| Transferível | 1 | |||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| Estágio do Documento | not transferred | |||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ET38CH | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
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| Histórico | 2014-08-28 17:04:45 :: marcelo.pazos@sid.inpe.br -> administrator :: 2020-04-29 13:33:50 :: administrator -> simone :: 2014 | |||
| Campos Vazios | accessionnumber archivingpolicy archivist callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination doi edition editor format isbn issn label lineage mark nextedition numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url versiontype volume | |||
| Data de Acesso | 23 out. 2020 | |||
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