Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scattering

[EN] Measurements of droplet size in optically-thick, non-evaporating, shear-driven sprays have been made using ultra-small angle x-ray scattering (USAXS). The sprays are produced by orifice-type nozzles coupled to diesel injectors, with measurements conducted from 1 - 24 mm from the orifice, spanni...

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Autores: Kastengren, Alan, Ilavsky, J., Viera-Sotillo, Juan Pablo, Duke, Daniel J., Swantek, A., Tilocco, F. Zak, Sovis, N., Powell, Christopher F., Payri, Raul|||0000-0001-7428-5510
Tipo de recurso: artículo
Fecha de publicación:2017
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:10251/149158
Acceso en línea:https://riunet.upv.es/handle/10251/149158
Access Level:acceso abierto
Palabra clave:Diesel spray
Droplet size
X-ray scattering
MAQUINAS Y MOTORES TERMICOS
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spelling Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scatteringKastengren, AlanIlavsky, J.Viera-Sotillo, Juan PabloDuke, Daniel J.Swantek, A.Tilocco, F. ZakSovis, N.Powell, Christopher F.Payri, Raul|||0000-0001-7428-5510Diesel sprayDroplet sizeX-ray scatteringMAQUINAS Y MOTORES TERMICOS[EN] Measurements of droplet size in optically-thick, non-evaporating, shear-driven sprays have been made using ultra-small angle x-ray scattering (USAXS). The sprays are produced by orifice-type nozzles coupled to diesel injectors, with measurements conducted from 1 - 24 mm from the orifice, spanning from the optically-dense near-nozzle region to more dilute regions where optical diagnostics are feasible. The influence of nozzle diameter, liquid injection pressure, and ambient density were examined. The USAXS measurements reveal few if any nanoscale droplets, in conflict with a popular computational model of diesel spray breakup. The average droplet diameter rapidly decreases with downstream distance from the nozzle until a plateau value is reached, after which only small changes are seen in droplet diameter. This plateau droplet size is consistent with the droplets being small enough to be stable with respect to further breakup. Liquid injection pressure and nozzle diameter have the biggest impact on droplet size, while ambient density has a smaller effect. (C) 2017 Published by Elsevier Ltd.X-ray spray research at Argonne is supported by the DOE Advanced Combustion Program. We acknowledge team leaders Gurpreet Singh and Leo Breton for their support. These experiments were performed at the 7-BM, 9-ID, and 15-ID beamlines of the Advanced Photon Source, Argonne National Laboratory. ChemMatCARS Sector 15 is principally supported by the Divisions of Chemistry (CHE) and Materials Research (DMR), National Science Foundation, under grant number NSF/CHE-1346572. Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-ACO2-06CH11357. R. Payri was funded by a Fulbright visiting scholar grant in collaboration with the Ministry of Education, Culture and Sports of Spain (reference PRX14/00331) while performing this work. J.P. Viera was funded by the Spanish MINECO grant EEBB-I-15-0976 under project TRA2012-36932.ElsevierDepartamento de Máquinas y Motores TérmicosInstituto Universitario de Investigación CMT - Clean Mobility & ThermofluidsEscuela Técnica Superior de Ingeniería IndustrialU.S. Department of EnergyNational Science Foundation, EEUUMinisterio de Educación, Cultura y DeporteMinisterio de Economía y CompetitividadRepositorio Institucional de la Universitat Politècnica de València Riunet20172017-06-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/149158reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengU.S. Department of Energy https://doi.org/10.13039/100000015 DE-AC02-06CH11357National Science Foundation, China https://doi.org/10.13039/100000001 1346572 ChemMatCARS: A synchrotron X-ray national facility for chemistry and materials research at the Advanced Photon SourceMinisterio de Educación y Cultura http://dx.doi.org/10.13039/501100003176 PRX14%2F00331 PRX14%2F00331Ministerio 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 DIESELopen 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:10251/1491582026-06-13T07:49:27Z
dc.title.none.fl_str_mv Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scattering
title Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scattering
spellingShingle Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scattering
Kastengren, Alan
Diesel spray
Droplet size
X-ray scattering
MAQUINAS Y MOTORES TERMICOS
title_short Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scattering
title_full Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scattering
title_fullStr Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scattering
title_full_unstemmed Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scattering
title_sort Measurements of droplet size in shear-driven atomization using ultra-small angle x-ray scattering
dc.creator.none.fl_str_mv Kastengren, Alan
Ilavsky, J.
Viera-Sotillo, Juan Pablo
Duke, Daniel J.
Swantek, A.
Tilocco, F. Zak
Sovis, N.
Powell, Christopher F.
Payri, Raul|||0000-0001-7428-5510
author Kastengren, Alan
author_facet Kastengren, Alan
Ilavsky, J.
Viera-Sotillo, Juan Pablo
Duke, Daniel J.
Swantek, A.
Tilocco, F. Zak
Sovis, N.
Powell, Christopher F.
Payri, Raul|||0000-0001-7428-5510
author_role author
author2 Ilavsky, J.
Viera-Sotillo, Juan Pablo
Duke, Daniel J.
Swantek, A.
Tilocco, F. Zak
Sovis, N.
Powell, Christopher F.
Payri, Raul|||0000-0001-7428-5510
author2_role author
author
author
author
author
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
U.S. Department of Energy
National Science Foundation, EEUU
Ministerio de Educación, Cultura y Deporte
Ministerio de Economía y Competitividad
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Diesel spray
Droplet size
X-ray scattering
MAQUINAS Y MOTORES TERMICOS
topic Diesel spray
Droplet size
X-ray scattering
MAQUINAS Y MOTORES TERMICOS
description [EN] Measurements of droplet size in optically-thick, non-evaporating, shear-driven sprays have been made using ultra-small angle x-ray scattering (USAXS). The sprays are produced by orifice-type nozzles coupled to diesel injectors, with measurements conducted from 1 - 24 mm from the orifice, spanning from the optically-dense near-nozzle region to more dilute regions where optical diagnostics are feasible. The influence of nozzle diameter, liquid injection pressure, and ambient density were examined. The USAXS measurements reveal few if any nanoscale droplets, in conflict with a popular computational model of diesel spray breakup. The average droplet diameter rapidly decreases with downstream distance from the nozzle until a plateau value is reached, after which only small changes are seen in droplet diameter. This plateau droplet size is consistent with the droplets being small enough to be stable with respect to further breakup. Liquid injection pressure and nozzle diameter have the biggest impact on droplet size, while ambient density has a smaller effect. (C) 2017 Published by Elsevier Ltd.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-06-01
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/10251/149158
url https://riunet.upv.es/handle/10251/149158
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv U.S. Department of Energy https://doi.org/10.13039/100000015 DE-AC02-06CH11357
National Science Foundation, China https://doi.org/10.13039/100000001 1346572 ChemMatCARS: A synchrotron X-ray national facility for chemistry and materials research at the Advanced Photon Source
Ministerio de Educación y Cultura http://dx.doi.org/10.13039/501100003176 PRX14%2F00331 PRX14%2F00331
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
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
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score 15,300719

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