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dc.contributor.author | Desantes, J.M. | es_ES |
dc.contributor.author | García-Oliver, José M | es_ES |
dc.contributor.author | García Martínez, Antonio | es_ES |
dc.contributor.author | Xuan, Tiemin | es_ES |
dc.date.accessioned | 2020-07-16T03:31:45Z | |
dc.date.available | 2020-07-16T03:31:45Z | |
dc.date.issued | 2019-08 | es_ES |
dc.identifier.issn | 1468-0874 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/148097 | |
dc.description.abstract | [EN] Even though studies on split-injection strategies have been published in recent years, there are still many remaining questions about how the first injection affects the mixing and combustion processes of the second one by changing the dwell time between both injection events or by the first injection quantity. In this article, split-injection diesel sprays with different injection strategies are investigated. Visualization of n-dodecane sprays was carried out under both non-reacting and reacting operating conditions in an optically accessible two-stroke engine equipped with a single-hole diesel injector. High-speed Schlieren imaging was applied to visualize the spray geometry development, while diffused backgroundillumination extinction imaging was applied to quantify the instantaneous soot production (net result of soot formation and oxidation). For non-reacting conditions, it was found that the vapor phase of second injection penetrates faster with a shorter dwell time and independently of the duration of the first injection. This could be explained in terms of onedimensional spray model results, which provided information on the local mixing and momentum state within the flow. Under reacting conditions, interaction between the second injection and combustion recession of the first injection is observed, resulting in shorter ignition delay and lift-off compared to the first injection. However, soot production behaves differently with different injection strategies. The maximum instantaneous soot mass produced by the second injection increases with a shorter dwell time and with longer first injection duration. | es_ES |
dc.description.sponsorship | The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was partially funded by the Spanish Ministry of Economy and Competitiveness in the frame of the advanced spray combustion models for efficient powertrains (COMEFF) (TRA2014-59483-R) project. Funding for Tiemin Xuan's PhD studies was granted by Universitat Politecnica de Valencia through the Programa de Apoyo para la Investigacion y Desarrollo (PAID) (grant reference FPI-2015-S2-1068) | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | SAGE Publications | es_ES |
dc.relation.ispartof | International Journal of Engine Research | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Diesel spray | es_ES |
dc.subject | Split injection | es_ES |
dc.subject | Vapor penetration | es_ES |
dc.subject | Ignition delay | es_ES |
dc.subject | Soot | es_ES |
dc.subject.classification | MAQUINAS Y MOTORES TERMICOS | es_ES |
dc.title | Optical study on characteristics of non-reacting and reacting diesel spray with different strategies of split injection | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1177/1468087418773012 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UPV//FPI-2015-S2-1068/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//TRA2014-59483-R/ES/MODELOS AVANZADOS DE COMBUSTION EN SPRAYS PARA PLANTAS PROPULSIVAS EFICIENTES/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics | es_ES |
dc.description.bibliographicCitation | Desantes, J.; García-Oliver, JM.; García Martínez, A.; Xuan, T. (2019). Optical study on characteristics of non-reacting and reacting diesel spray with different strategies of split injection. International Journal of Engine Research. 20(6):606-623. https://doi.org/10.1177/1468087418773012 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1177/1468087418773012 | es_ES |
dc.description.upvformatpinicio | 606 | es_ES |
dc.description.upvformatpfin | 623 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 20 | es_ES |
dc.description.issue | 6 | es_ES |
dc.relation.pasarela | S\373242 | es_ES |
dc.contributor.funder | Ministerio de Economía y Empresa | es_ES |
dc.contributor.funder | Universitat Politècnica de València | es_ES |
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