Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis

[EN] Laser ignition was investigated in the swirled, confined CORIA Rouen Spray Burner under ultra-lean conditions (=0.61) with n-heptane as the liquid fuel. Ignition probability was calculated for different spark locations and compared to the non-ignited local flow properties. Mean velocity compon...

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Detalhes bibliográficos
Autores: Marrero Santiago, Javier, Verdier, Antoine, Vandel, Alexis, Godard, Gilles, Cabot, Gilles, Renou, Bruno
Tipo de documento: capítulo de livro
Data de publicação:2017
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositório:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglês
OAI Identifier:oai:riunet.upv.es:10251/100215
Acesso em linha:https://riunet.upv.es/handle/10251/100215
Access Level:Acceso aberto
Palavra-chave:Spray ignition
PDA
PIV
Toluene PLIF
Ignition probability
Local flow properties
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spelling Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysisMarrero Santiago, JavierVerdier, AntoineVandel, AlexisGodard, GillesCabot, GillesRenou, BrunoSpray ignitionPDAPIVToluene PLIFIgnition probabilityLocal flow properties[EN] Laser ignition was investigated in the swirled, confined CORIA Rouen Spray Burner under ultra-lean conditions (=0.61) with n-heptane as the liquid fuel. Ignition probability was calculated for different spark locations and compared to the non-ignited local flow properties. Mean velocity components of the carrier flow were measured by PDA under spray presence and without spray, and are compared to mean values from PIV. PIV measurements provide information on the instantaneous airflow and the total strain rate. Fuel droplet size-velocity data was measured by PDA. Toluene-PLIF images were acquired to provide information on the local equivalence ratio and the flammability factor. Results show that the outer recirculation zone (ORZ) has a flammability factor close to 1 and the highest ignition probability (~80%). These results have a high correlation with the air velocity field and turbulent kinetic energy. Instantaneous equivalence ratio images and shear rate-velocity fields give important information on local segregation of the flow properties that help to understand the ignition process. The present work provides a useful database for numerical simulations and industry, plus new insight on spray ignition.The authors acknowledge financial support from ANR under the project TIMBER ANR-14-CE23-0009.Editorial Universitat Politècnica de ValènciaAgence Nationale de la Recherche, FranciaRepositorio Institucional de la Universitat Politècnica de València Riunet20172017-07-28book parthttp://purl.org/coar/resource_type/c_3248VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/bookPartapplication/pdfhttps://riunet.upv.es/handle/10251/100215reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengAgence Nationale de la Recherche, Francia https://doi.org/10.13039/501100001665 ANR-14-CE23-0009 Two-phase ignition and propagation in multi-burner combustorsopen 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:10251/1002152026-06-13T07:49:27Z
dc.title.none.fl_str_mv Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis
title Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis
spellingShingle Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis
Marrero Santiago, Javier
Spray ignition
PDA
PIV
Toluene PLIF
Ignition probability
Local flow properties
title_short Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis
title_full Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis
title_fullStr Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis
title_full_unstemmed Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis
title_sort Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis
dc.creator.none.fl_str_mv Marrero Santiago, Javier
Verdier, Antoine
Vandel, Alexis
Godard, Gilles
Cabot, Gilles
Renou, Bruno
author Marrero Santiago, Javier
author_facet Marrero Santiago, Javier
Verdier, Antoine
Vandel, Alexis
Godard, Gilles
Cabot, Gilles
Renou, Bruno
author_role author
author2 Verdier, Antoine
Vandel, Alexis
Godard, Gilles
Cabot, Gilles
Renou, Bruno
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Agence Nationale de la Recherche, Francia
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Spray ignition
PDA
PIV
Toluene PLIF
Ignition probability
Local flow properties
topic Spray ignition
PDA
PIV
Toluene PLIF
Ignition probability
Local flow properties
description [EN] Laser ignition was investigated in the swirled, confined CORIA Rouen Spray Burner under ultra-lean conditions (=0.61) with n-heptane as the liquid fuel. Ignition probability was calculated for different spark locations and compared to the non-ignited local flow properties. Mean velocity components of the carrier flow were measured by PDA under spray presence and without spray, and are compared to mean values from PIV. PIV measurements provide information on the instantaneous airflow and the total strain rate. Fuel droplet size-velocity data was measured by PDA. Toluene-PLIF images were acquired to provide information on the local equivalence ratio and the flammability factor. Results show that the outer recirculation zone (ORZ) has a flammability factor close to 1 and the highest ignition probability (~80%). These results have a high correlation with the air velocity field and turbulent kinetic energy. Instantaneous equivalence ratio images and shear rate-velocity fields give important information on local segregation of the flow properties that help to understand the ignition process. The present work provides a useful database for numerical simulations and industry, plus new insight on spray ignition.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-07-28
dc.type.none.fl_str_mv book part
http://purl.org/coar/resource_type/c_3248
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/bookPart
format bookPart
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/100215
url https://riunet.upv.es/handle/10251/100215
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agence Nationale de la Recherche, Francia https://doi.org/10.13039/501100001665 ANR-14-CE23-0009 Two-phase ignition and propagation in multi-burner combustors
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
dc.publisher.none.fl_str_mv Editorial Universitat Politècnica de València
publisher.none.fl_str_mv Editorial Universitat Politècnica de València
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_ 1869409455922216960
score 15,228081

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