Numerical study of homogeneous pre-chamber design in an ethanol-fueled vehicular engine

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSandoval, Miguel Humberto Barrientos-
Autor(es): dc.creatorAlvarez, Carlos Eduardo Castilla-
Autor(es): dc.creatorRoso, Vinícius Rückert-
Autor(es): dc.creatorSantos, Nathália Duarte Souza Alvarenga-
Autor(es): dc.creatorBraga, Raphael Meireles-
Data de aceite: dc.date.accessioned2026-02-09T11:56:46Z-
Data de disponibilização: dc.date.available2026-02-09T11:56:46Z-
Data de envio: dc.date.issued2023-06-01-
Data de envio: dc.date.issued2023-06-01-
Data de envio: dc.date.issued2022-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/56919-
Fonte completa do material: dc.identifierhttps://link.springer.com/article/10.1007/s40430-022-03988-9-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1150942-
Descrição: dc.descriptionThe use of pre-chamber ignition systems is a suitable alternative in the transition from internal combustion engines to fully electric solutions, since their use allows a reduction in specific fuel consumption and exhaust emissions. In this sense, the proper dimensioning of a pre-chamber influences significantly the flame propagation and, therefore, the combustion and performance characteristics. In this work, a commercial 4-cylinder engine equipped with a pre-chamber prototype was used to evaluate the influence of the pre-chamber internal volume, besides the diameter and arrangement of interconnection holes in the combustion development. For this, a CFD simulation was performed with the Converge Science software using the extended coherent flame model at stoichiometric condition. After validation with experimental data, modifications were carried out in the pre-chamber design, simulating six different configurations. Results indicated that the pre-chamber internal volume is the parameter that most influences on the combustion process. An increase in pre-chamber volume from 2.2 to 4.6% of the main combustion chamber could improve its capacity to release energy, reaching pressure peaks up to 3% higher when compared to a lower pre-chamber volume. It was also shown that a greater number of interconnection holes promote a more uniform jet distribution in the main chamber, while a smaller interconnection area could favor the kinetic energy and accelerate combustion.-
Idioma: dc.languageen-
Publicador: dc.publisherSpringer-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceJournal of the Brazilian Society of Mechanical Sciences and Engineering-
Palavras-chave: dc.subjectInternal combustion engine-
Palavras-chave: dc.subjectEthanol-
Palavras-chave: dc.subjectPre-chamber design-
Palavras-chave: dc.subjectComputer fluid dynamics-
Palavras-chave: dc.subjectNumerical simulation-
Título: dc.titleNumerical study of homogeneous pre-chamber design in an ethanol-fueled vehicular engine-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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