Study of evaporative diesel spray interaction in multiple injections using optical diagnostics

[EN] Internal combustion engines have witnessed an ever increasing stringency in emission limits and fuel economy regulations that has continuously provoked researchers to develop complex strategies that enables engines to cope with these standards. Optical techniques have been a viable method in th...

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Autores: Payri, Raul|||0000-0001-7428-5510, Salvador, Francisco Javier|||0000-0003-3269-2251, Abboud, Rami, Viera, Alberto
Formato: artículo
Fecha de publicación:2020
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/167216
Acesso em linha:https://riunet.upv.es/handle/10251/167216
Access Level:acceso abierto
Palavra-chave:Multiple injections diesel
Evaporation
Diffused back-illumination
Schlieren
Optical diagnostics
MAQUINAS Y MOTORES TERMICOS
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spelling Study of evaporative diesel spray interaction in multiple injections using optical diagnosticsPayri, Raul|||0000-0001-7428-5510Salvador, Francisco Javier|||0000-0003-3269-2251Abboud, RamiViera, AlbertoMultiple injections dieselEvaporationDiffused back-illuminationSchlierenOptical diagnosticsMAQUINAS Y MOTORES TERMICOS[EN] Internal combustion engines have witnessed an ever increasing stringency in emission limits and fuel economy regulations that has continuously provoked researchers to develop complex strategies that enables engines to cope with these standards. Optical techniques have been a viable method in the study of thermal processes occurring inside internal combustion engines and provides researchers with a solid understanding of the heat and mass transfer taking place. In particular, the current study utilizes two optical techniques, diffused back illumination and schlieren imaging, to visualize the spray behavior in multiple injection strategies of evaporative diesel sprays. A novel method has been developed in order to couple the two optical techniques to visualize both liquid and vapor phases of either pilot-main and main-post injections. The influence of the auxiliary injections on the main, and vice versa, in terms of spray segmentation and spray development has been studied for two different pilot/post quantities and four hydraulic dwell times under two different chamber conditions. The spray development displayed no effect of pilot quantity and dwell time on the liquid length of the second injection. On the other hand, a more pronoun effect on the vapor phase penetration and spreading angle was evidenced by the pilot injection where the main injection has penetrated farther with a higher spreading angle as compared to the case with a single injection event. The understanding of multiple injection is thus fundamental for the improvement of thermal processes in Internal Combustion Engines.This research has been partially funded by Spanish Ministerio de Ciencia, Innovacion y Universidades through project RTI2018-099706B-100. Additionally, the experimental hardware was purchased through FEDER and Generalitat Valenciana under project IDIFEDER/2018/037.ElsevierDepartamento de Máquinas y Motores TérmicosInstituto Universitario de Investigación CMT - Clean Mobility & ThermofluidsEscuela Técnica Superior de Ingeniería IndustrialGeneralitat ValencianaAgencia Estatal de InvestigaciónEuropean Regional Development FundRepositorio Institucional de la Universitat Politècnica de València Riunet20202020-07-25journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/167216reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengGeneralitat Valenciana https://doi.org/10.13039/501100003359 IDIFEDER%2F2018%2F037 DIAGNÓSTICO ÓPTICO A ALTA VELOCIDAD PARA EL ESTUDIO DE PROCESOS TERMO‐FLUIDODINÁMICOS EN SISTEMAS DE INYECCIÓNAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 RTI2018-099706-B-I00 ESTUDIO DE LA ATOMIZACION PRIMARIA MEDIANTE SIMULACIONES DNS Y TECNICAS OPTICAS DE MUY ALTA RESOLUCIONopen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/1672162026-06-13T07:49:27Z
dc.title.none.fl_str_mv Study of evaporative diesel spray interaction in multiple injections using optical diagnostics
title Study of evaporative diesel spray interaction in multiple injections using optical diagnostics
spellingShingle Study of evaporative diesel spray interaction in multiple injections using optical diagnostics
Payri, Raul|||0000-0001-7428-5510
Multiple injections diesel
Evaporation
Diffused back-illumination
Schlieren
Optical diagnostics
MAQUINAS Y MOTORES TERMICOS
title_short Study of evaporative diesel spray interaction in multiple injections using optical diagnostics
title_full Study of evaporative diesel spray interaction in multiple injections using optical diagnostics
title_fullStr Study of evaporative diesel spray interaction in multiple injections using optical diagnostics
title_full_unstemmed Study of evaporative diesel spray interaction in multiple injections using optical diagnostics
title_sort Study of evaporative diesel spray interaction in multiple injections using optical diagnostics
dc.creator.none.fl_str_mv Payri, Raul|||0000-0001-7428-5510
Salvador, Francisco Javier|||0000-0003-3269-2251
Abboud, Rami
Viera, Alberto
author Payri, Raul|||0000-0001-7428-5510
author_facet Payri, Raul|||0000-0001-7428-5510
Salvador, Francisco Javier|||0000-0003-3269-2251
Abboud, Rami
Viera, Alberto
author_role author
author2 Salvador, Francisco Javier|||0000-0003-3269-2251
Abboud, Rami
Viera, Alberto
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Máquinas y Motores Térmicos
Instituto Universitario de Investigación CMT - Clean Mobility & Thermofluids
Escuela Técnica Superior de Ingeniería Industrial
Generalitat Valenciana
Agencia Estatal de Investigación
European Regional Development Fund
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Multiple injections diesel
Evaporation
Diffused back-illumination
Schlieren
Optical diagnostics
MAQUINAS Y MOTORES TERMICOS
topic Multiple injections diesel
Evaporation
Diffused back-illumination
Schlieren
Optical diagnostics
MAQUINAS Y MOTORES TERMICOS
description [EN] Internal combustion engines have witnessed an ever increasing stringency in emission limits and fuel economy regulations that has continuously provoked researchers to develop complex strategies that enables engines to cope with these standards. Optical techniques have been a viable method in the study of thermal processes occurring inside internal combustion engines and provides researchers with a solid understanding of the heat and mass transfer taking place. In particular, the current study utilizes two optical techniques, diffused back illumination and schlieren imaging, to visualize the spray behavior in multiple injection strategies of evaporative diesel sprays. A novel method has been developed in order to couple the two optical techniques to visualize both liquid and vapor phases of either pilot-main and main-post injections. The influence of the auxiliary injections on the main, and vice versa, in terms of spray segmentation and spray development has been studied for two different pilot/post quantities and four hydraulic dwell times under two different chamber conditions. The spray development displayed no effect of pilot quantity and dwell time on the liquid length of the second injection. On the other hand, a more pronoun effect on the vapor phase penetration and spreading angle was evidenced by the pilot injection where the main injection has penetrated farther with a higher spreading angle as compared to the case with a single injection event. The understanding of multiple injection is thus fundamental for the improvement of thermal processes in Internal Combustion Engines.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-07-25
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/167216
url https://riunet.upv.es/handle/10251/167216
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Generalitat Valenciana https://doi.org/10.13039/501100003359 IDIFEDER%2F2018%2F037 DIAGNÓSTICO ÓPTICO A ALTA VELOCIDAD PARA EL ESTUDIO DE PROCESOS TERMO‐FLUIDODINÁMICOS EN SISTEMAS DE INYECCIÓN
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 RTI2018-099706-B-I00 ESTUDIO DE LA ATOMIZACION PRIMARIA MEDIANTE SIMULACIONES DNS Y TECNICAS OPTICAS DE MUY ALTA RESOLUCION
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869419476155367424
score 15.301603

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