- -

Effect of passive pre-chamber orifice diameter on the methane combustion process in an optically accessible SI engine

RiuNet: Repositorio Institucional de la Universidad Politécnica de Valencia

Compartir/Enviar a

Citas

Estadísticas

  • Estadisticas de Uso

Effect of passive pre-chamber orifice diameter on the methane combustion process in an optically accessible SI engine

Mostrar el registro sencillo del ítem

Ficheros en el ítem

dc.contributor.author Beltrao de Vargas-Antolini, Jacson es_ES
dc.contributor.author Sementa, Paolo es_ES
dc.contributor.author Tornatore, Cinzia es_ES
dc.contributor.author Catapano, Francesco es_ES
dc.contributor.author Vaglieco, Bianca Maria es_ES
dc.contributor.author Desantes, J.M. es_ES
dc.contributor.author López, J. Javier es_ES
dc.date.accessioned 2023-11-17T19:02:16Z
dc.date.available 2023-11-17T19:02:16Z
dc.date.issued 2023-06-01 es_ES
dc.identifier.issn 0016-2361 es_ES
dc.identifier.uri http://hdl.handle.net/10251/199931
dc.description.abstract [EN] Due to its potential to extend the lean limit or overcome knock-limited conditions on spark-ignited (SI) engines, the pre-chamber spark-ignition (PCSI) concept has gained attention as an efficient alternative to the conventional ignition architecture. Nevertheless, especially in engine-like conditions, the effect of the main geometrical parameters on combustion development is still not fully understood and might be a hindrance to the use of this technology. In this sense, the current study aims to evaluate the effect of the orifice diameter on the jet characteristics and main chamber combustion of a novel passive pre-chamber in an optically accessible single-cylinder SI engine, as well as to compare the PCSI with the typical SI ignition method. High-speed broadband chemiluminescence imaging was used to track the jet penetration and flame front propagation of three mixture compositions at various spark timings (ST). Additionally, based on the in-cylinder pressure, a heat-released analysis was performed to assess the overall combustion process. When compared with the typical SI, the pre-chamber concept presented a higher equivalent flame front velocity, which is also corroborated by the higher in-cylinder pressure rise rate and rate of heat released. For all mixtures tested, the 1.2 mm orifice diameter PC presented the shortest flame development angle (crank angle interval between ST and 10 % of mass fraction burned in the MC), followed by 1.5 and lastly 1.0 mm. When comparing different STs, the shortest flame development angle occurred at MBT condition. Despite the highest flame development angle, the PC 1.0 mm case presented the lowest main chamber combustion duration (CA10-90), which increases as the orifice diameter is increased. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Fuel es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Hydrogen fuel es_ES
dc.subject SI engine es_ES
dc.subject Lean combustion es_ES
dc.subject Methane es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Effect of passive pre-chamber orifice diameter on the methane combustion process in an optically accessible SI engine es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.fuel.2022.126990 es_ES
dc.rights.accessRights Embargado es_ES
dc.date.embargoEndDate 2025-03-31 es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny es_ES
dc.description.bibliographicCitation Beltrao De Vargas-Antolini, J.; Sementa, P.; Tornatore, C.; Catapano, F.; Vaglieco, BM.; Desantes, J.; López, JJ. (2023). Effect of passive pre-chamber orifice diameter on the methane combustion process in an optically accessible SI engine. Fuel. 341:1-14. https://doi.org/10.1016/j.fuel.2022.126990 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.fuel.2022.126990 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 14 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 341 es_ES
dc.relation.pasarela S\486502 es_ES
dc.subject.ods 07.- Asegurar el acceso a energías asequibles, fiables, sostenibles y modernas para todos es_ES


Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem