Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogate

Understanding and controlling mixing and combustion processes is fundamental for the ever more demanding pollutant regulations and fuel consumption standards of direct injection diesel engines. The fundamentals of these processes have been long studied from both experimental and numerical perspectiv...

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Autores: Payri, Raul|||0000-0001-7428-5510, Viera Sotillo, Juan Pablo, Pei, Yuanjiang, Som, Sibendu
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/65720
Acceso en línea:https://riunet.upv.es/handle/10251/65720
Access Level:acceso abierto
Palabra clave:Diesel injection
Ignition
Lift-off length
Reduced mechanisms
Diesel surrogates
MAQUINAS Y MOTORES TERMICOS
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dc.title.none.fl_str_mv Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogate
title Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogate
spellingShingle Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogate
Payri, Raul|||0000-0001-7428-5510
Diesel injection
Ignition
Lift-off length
Reduced mechanisms
Diesel surrogates
MAQUINAS Y MOTORES TERMICOS
title_short Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogate
title_full Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogate
title_fullStr Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogate
title_full_unstemmed Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogate
title_sort Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogate
dc.creator.none.fl_str_mv Payri, Raul|||0000-0001-7428-5510
Viera Sotillo, Juan Pablo
Pei, Yuanjiang
Som, Sibendu
author Payri, Raul|||0000-0001-7428-5510
author_facet Payri, Raul|||0000-0001-7428-5510
Viera Sotillo, Juan Pablo
Pei, Yuanjiang
Som, Sibendu
author_role author
author2 Viera Sotillo, Juan Pablo
Pei, Yuanjiang
Som, Sibendu
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
Junta de Andalucía
U.S. Department of Energy
Ministerio de Economía y Competitividad
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Diesel injection
Ignition
Lift-off length
Reduced mechanisms
Diesel surrogates
MAQUINAS Y MOTORES TERMICOS
topic Diesel injection
Ignition
Lift-off length
Reduced mechanisms
Diesel surrogates
MAQUINAS Y MOTORES TERMICOS
description Understanding and controlling mixing and combustion processes is fundamental for the ever more demanding pollutant regulations and fuel consumption standards of direct injection diesel engines. The fundamentals of these processes have been long studied from both experimental and numerical perspectives. As numerical models become more advanced, the need for adequate experimental data increases. Hence, experimental methodologies and scientific databases need to be enhanced with more quantitative, accurate, consistent, and reliable information in order to evaluate the models in a robust fashion. The present study seeks to enhance the current state-of-the-art by further evaluating the combustion performance of a two-component diesel surrogate for multi-dimensional compression ignition engine simulations, composed of n-dodecane and m-xylene. This surrogate is expected to better represent diesel fuel combustion than the standard Engine Combustion Network (ECN) fuel (n-dodecane), since it contains an alkyl-benzene which represents an important chemical class present in diesel fuels. Experiments and numerical simulations have been performed on lift-off length and ignition delay in a wide range of conditions for a single-hole injector from ECN. The experiments were carried out in a constant-pressure flow facility able of reproducing engine-like thermodynamic conditions. The experiments focused in characterizing the ignition delay through the Schlieren technique, and the lift-off length through OH* chemiluminescence visualization, at ECN suggested test conditions. On the other hand, computational fluid dynamics (CFD) simulations were performed using a multi-flamelet representative interactive flamelet (mRIF) model by taking consideration of turbulence-chemistry-interaction (TCI) with a beta-function on the form of scalar probability density functions (PDFs). This model is evaluated extensively over a wider range of parametric variations in this study. Encouraging results were obtained compared to the experiments with regards to the predictions of ignition delay and lift-off length at different ambient temperatures, ambient densities and fuel-injection pressures. Under predictions were found at less reactive conditions, which leave room for improvement in the future. (C) 2014 Elsevier Ltd. All rights reserved.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-10-15
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/10251/65720
url https://riunet.upv.es/handle/10251/65720
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 TRA2012-36932 COMPRENSION DE LA INFLUENCIA DE COMBUSTIBLES NO CONVENCIONALES EN EL PROCESO DE INYECCION Y COMBUSTION TIPO DIESEL
Junta de Andalucía http://dx.doi.org/10.13039/501100011011 CTS-201 Aspectos Septicos Y Metab-Nutricionales En Pac.Criticos
U.S. Department of Energy https://doi.org/10.13039/100000015 DE-AC02-06CH11357
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
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Reserva de todos los derechos
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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
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spelling Experimental and numerical study of lift-off length and ignition delay of a two-component diesel surrogatePayri, Raul|||0000-0001-7428-5510Viera Sotillo, Juan PabloPei, YuanjiangSom, SibenduDiesel injectionIgnitionLift-off lengthReduced mechanismsDiesel surrogatesMAQUINAS Y MOTORES TERMICOSUnderstanding and controlling mixing and combustion processes is fundamental for the ever more demanding pollutant regulations and fuel consumption standards of direct injection diesel engines. The fundamentals of these processes have been long studied from both experimental and numerical perspectives. As numerical models become more advanced, the need for adequate experimental data increases. Hence, experimental methodologies and scientific databases need to be enhanced with more quantitative, accurate, consistent, and reliable information in order to evaluate the models in a robust fashion. The present study seeks to enhance the current state-of-the-art by further evaluating the combustion performance of a two-component diesel surrogate for multi-dimensional compression ignition engine simulations, composed of n-dodecane and m-xylene. This surrogate is expected to better represent diesel fuel combustion than the standard Engine Combustion Network (ECN) fuel (n-dodecane), since it contains an alkyl-benzene which represents an important chemical class present in diesel fuels. Experiments and numerical simulations have been performed on lift-off length and ignition delay in a wide range of conditions for a single-hole injector from ECN. The experiments were carried out in a constant-pressure flow facility able of reproducing engine-like thermodynamic conditions. The experiments focused in characterizing the ignition delay through the Schlieren technique, and the lift-off length through OH* chemiluminescence visualization, at ECN suggested test conditions. On the other hand, computational fluid dynamics (CFD) simulations were performed using a multi-flamelet representative interactive flamelet (mRIF) model by taking consideration of turbulence-chemistry-interaction (TCI) with a beta-function on the form of scalar probability density functions (PDFs). This model is evaluated extensively over a wider range of parametric variations in this study. Encouraging results were obtained compared to the experiments with regards to the predictions of ignition delay and lift-off length at different ambient temperatures, ambient densities and fuel-injection pressures. Under predictions were found at less reactive conditions, which leave room for improvement in the future. (C) 2014 Elsevier Ltd. All rights reserved.The research was funded by DOE's Office of Vehicle Technologies, Office of Energy Efficiency and Renewable Energy under Contract No. DE-AC02-06CH11357. The authors wish to thank Gurpreet Singh and Leo Breton, program managers at DOE, for his support.ElsevierDepartamento de Máquinas y Motores TérmicosInstituto Universitario de Investigación CMT - Clean Mobility & ThermofluidsEscuela Técnica Superior de Ingeniería IndustrialJunta de AndalucíaU.S. Department of EnergyMinisterio de Economía y CompetitividadRepositorio Institucional de la Universitat Politècnica de València Riunet20152015-10-15journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/65720reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 TRA2012-36932 COMPRENSION DE LA INFLUENCIA DE COMBUSTIBLES NO CONVENCIONALES EN EL PROCESO DE INYECCION Y COMBUSTION TIPO DIESELJunta de Andalucía http://dx.doi.org/10.13039/501100011011 CTS-201 Aspectos Septicos Y Metab-Nutricionales En Pac.CriticosU.S. Department of Energy https://doi.org/10.13039/100000015 DE-AC02-06CH11357open 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:10251/657202026-06-13T07:49:27Z
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