A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustion

Nowadays many research efforts are focused on the study and development of new combustion modes, mainly based on the use of locally lean air–fuel mixtures. This characteristic, combined with exhaust gas recirculation, provides low combustion temperatures that reduces pollutant formation and increase...

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Authors: Pastor, José V.|||0000-0003-4113-4681, García-Oliver, José M|||0000-0002-2676-9681, Micó, Carlos|||0000-0001-5787-6212, García Martínez, Antonio, Durret, R.
Format: article
Publication Date:2013
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/39796
Online Access:https://riunet.upv.es/handle/10251/39796
Access Level:Open access
Keyword:PPC
Spark assistance
Gasoline fuel
Optical investigation
Combustion description
MAQUINAS Y MOTORES TERMICOS
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spelling A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustionPastor, José V.|||0000-0003-4113-4681García-Oliver, José M|||0000-0002-2676-9681Micó, Carlos|||0000-0001-5787-6212García Martínez, AntonioDurret, R.PPCSpark assistanceGasoline fuelOptical investigationCombustion descriptionMAQUINAS Y MOTORES TERMICOSNowadays many research efforts are focused on the study and development of new combustion modes, mainly based on the use of locally lean air–fuel mixtures. This characteristic, combined with exhaust gas recirculation, provides low combustion temperatures that reduces pollutant formation and increases efficiency. However these combustion concepts have some drawbacks, related to combustion phasing control, which must be overcome. In this way, the use of a spark plug has shown to be a good solution to improve phasing control in combination with lean low temperature combustion. Its performance is well reported on bibliography, however phenomena involving the combustion process are not completely described. The aim of the present work is to develop a detailed description of the spark assisted compression ignition mode by means of application of UV–Visible spectrometry, in order to improve insight on the combustion process. Tests have been performed in an optical engine by means of broadband radiation imaging and emission spectrometry. The engine hardware is typical of a compression ignition passenger car application. Gasoline was used as the fuel due to its low reactivity. Combining broadband luminosity images with pressure-derived heat-release rate and UV–Visible spectra, it was possible to identify different stages of the combustion reaction. After the spark discharge, a first flame kernel appears and starts growing as a premixed flame front, characterized by a low and constant heat-release rate in combination with the presence of remarkable OH radical radiation. Heat release increases temperature and pressure inside the combustion chamber, which causes the auto-ignition of the rest of the unburned mixture. This second stage is characterized by a more pronounced rate of heat release and a faster propagation of the reactions through the combustion chamber. Moreover, the measured UV–Visible spectra show some differences in comparison with the other stages. The relative intensities in of spectra from different combustion radicals have also been related to the different combustion phases.The authors acknowledge that part of this work was performed in the frame of Project DUFUEL TRA2011-26359, funded by the Spanish Government. The authors also thank GM for technical assistance and its support in other parts of this work.ElsevierDepartamento de Máquinas y Motores TérmicosEscuela Técnica Superior de Ingeniería Aeroespacial y Diseño IndustrialInstituto Universitario de Investigación CMT - Clean Mobility & ThermofluidsEscuela Politécnica Superior de AlcoyMinisterio de Ciencia e InnovaciónRepositorio Institucional de la Universitat Politècnica de València Riunet20132013-04-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/39796reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengMinisterio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 TRA2011-26359 COMBUSTION EFICIENTE Y LIMPIA EN MOTORES DE ENCENDIDO POR COMPRESION UTILIZANDO EL CONCEPTO DUAL-FUELopen accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/397962026-06-13T07:49:27Z
dc.title.none.fl_str_mv A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustion
title A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustion
spellingShingle A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustion
Pastor, José V.|||0000-0003-4113-4681
PPC
Spark assistance
Gasoline fuel
Optical investigation
Combustion description
MAQUINAS Y MOTORES TERMICOS
title_short A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustion
title_full A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustion
title_fullStr A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustion
title_full_unstemmed A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustion
title_sort A spectroscopy study of gasoline partially premixed compression ignition spark assisted combustion
dc.creator.none.fl_str_mv Pastor, José V.|||0000-0003-4113-4681
García-Oliver, José M|||0000-0002-2676-9681
Micó, Carlos|||0000-0001-5787-6212
García Martínez, Antonio
Durret, R.
author Pastor, José V.|||0000-0003-4113-4681
author_facet Pastor, José V.|||0000-0003-4113-4681
García-Oliver, José M|||0000-0002-2676-9681
Micó, Carlos|||0000-0001-5787-6212
García Martínez, Antonio
Durret, R.
author_role author
author2 García-Oliver, José M|||0000-0002-2676-9681
Micó, Carlos|||0000-0001-5787-6212
García Martínez, Antonio
Durret, R.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Máquinas y Motores Térmicos
Escuela Técnica Superior de Ingeniería Aeroespacial y Diseño Industrial
Instituto Universitario de Investigación CMT - Clean Mobility & Thermofluids
Escuela Politécnica Superior de Alcoy
Ministerio de Ciencia e Innovación
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv PPC
Spark assistance
Gasoline fuel
Optical investigation
Combustion description
MAQUINAS Y MOTORES TERMICOS
topic PPC
Spark assistance
Gasoline fuel
Optical investigation
Combustion description
MAQUINAS Y MOTORES TERMICOS
description Nowadays many research efforts are focused on the study and development of new combustion modes, mainly based on the use of locally lean air–fuel mixtures. This characteristic, combined with exhaust gas recirculation, provides low combustion temperatures that reduces pollutant formation and increases efficiency. However these combustion concepts have some drawbacks, related to combustion phasing control, which must be overcome. In this way, the use of a spark plug has shown to be a good solution to improve phasing control in combination with lean low temperature combustion. Its performance is well reported on bibliography, however phenomena involving the combustion process are not completely described. The aim of the present work is to develop a detailed description of the spark assisted compression ignition mode by means of application of UV–Visible spectrometry, in order to improve insight on the combustion process. Tests have been performed in an optical engine by means of broadband radiation imaging and emission spectrometry. The engine hardware is typical of a compression ignition passenger car application. Gasoline was used as the fuel due to its low reactivity. Combining broadband luminosity images with pressure-derived heat-release rate and UV–Visible spectra, it was possible to identify different stages of the combustion reaction. After the spark discharge, a first flame kernel appears and starts growing as a premixed flame front, characterized by a low and constant heat-release rate in combination with the presence of remarkable OH radical radiation. Heat release increases temperature and pressure inside the combustion chamber, which causes the auto-ignition of the rest of the unburned mixture. This second stage is characterized by a more pronounced rate of heat release and a faster propagation of the reactions through the combustion chamber. Moreover, the measured UV–Visible spectra show some differences in comparison with the other stages. The relative intensities in of spectra from different combustion radicals have also been related to the different combustion phases.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-04-01
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/10251/39796
url https://riunet.upv.es/handle/10251/39796
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 TRA2011-26359 COMBUSTION EFICIENTE Y LIMPIA EN MOTORES DE ENCENDIDO POR COMPRESION UTILIZANDO EL CONCEPTO DUAL-FUEL
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
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
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
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
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score 15,300724

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