Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injector
[EN] The Selective Catalytic Reduction (SCR) technology allows the transformation of the Nitrous Oxide emissions present in exhaust gases into gaseous nitrogen and water. For a proper operation of the SCR, a urea-water solution (UWS) injector must dose an adequate amount of liquid into the exhaust p...
| Autores: | , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2021 |
| 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:10251/183622 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/183622 |
| Access Level: | acceso abierto |
| Palavra-chave: | Momentum flux UWS Rate of injection SCR AdBlue Low pressure atomizer MAQUINAS Y MOTORES TERMICOS INGENIERIA AEROESPACIAL |
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oai:riunet.upv.es:10251/183622 |
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España |
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|
| dc.title.none.fl_str_mv |
Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injector |
| title |
Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injector |
| spellingShingle |
Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injector Payri, Raul|||0000-0001-7428-5510 Momentum flux UWS Rate of injection SCR AdBlue Low pressure atomizer MAQUINAS Y MOTORES TERMICOS INGENIERIA AEROESPACIAL |
| title_short |
Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injector |
| title_full |
Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injector |
| title_fullStr |
Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injector |
| title_full_unstemmed |
Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injector |
| title_sort |
Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injector |
| dc.creator.none.fl_str_mv |
Payri, Raul|||0000-0001-7428-5510 Bracho Leon, Gabriela|||0000-0002-9198-7044 Marti-Aldaravi, Pedro|||0000-0003-4650-4004 Moreno-Gasparotto, Armando Enrique |
| author |
Payri, Raul|||0000-0001-7428-5510 |
| author_facet |
Payri, Raul|||0000-0001-7428-5510 Bracho Leon, Gabriela|||0000-0002-9198-7044 Marti-Aldaravi, Pedro|||0000-0003-4650-4004 Moreno-Gasparotto, Armando Enrique |
| author_role |
author |
| author2 |
Bracho Leon, Gabriela|||0000-0002-9198-7044 Marti-Aldaravi, Pedro|||0000-0003-4650-4004 Moreno-Gasparotto, Armando Enrique |
| author2_role |
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 Técnica Superior de Ingeniería Industrial Agencia Estatal de Investigación Universitat Politècnica de València Repositorio Institucional de la Universitat Politècnica de València Riunet |
| dc.subject.none.fl_str_mv |
Momentum flux UWS Rate of injection SCR AdBlue Low pressure atomizer MAQUINAS Y MOTORES TERMICOS INGENIERIA AEROESPACIAL |
| topic |
Momentum flux UWS Rate of injection SCR AdBlue Low pressure atomizer MAQUINAS Y MOTORES TERMICOS INGENIERIA AEROESPACIAL |
| description |
[EN] The Selective Catalytic Reduction (SCR) technology allows the transformation of the Nitrous Oxide emissions present in exhaust gases into gaseous nitrogen and water. For a proper operation of the SCR, a urea-water solution (UWS) injector must dose an adequate amount of liquid into the exhaust pipe in order to avoid deposit formation and to guarantee the SCR system efficiency. This task requires the knowledge of the performance of the injector. Then, the goal of this work is to study the hydraulic performance of a UWS injector, by means of measuring the spray momentum flux in order to understand the influence of different variables as injected fluid, injection pressure, counter pressure and cooling temperature of the injector on the flow characteristics. The tested injector was cooled at three different temperatures, 60, 90 and 120 degrees C, the injection pressure of the UWS was set at 5, 7 and 9 bar, with counter pressures of 750, 900, 1000 and 2000 mbar for the two tested fluids, water and UWS. The measurements were carried out using an experimental facility developed at CMT-Motores Termicos for the determination of spray momentum flux, where a piezoelectric pressure sensor was located near the nozzle exit of the injector, which measures the impact force of the spray. Additionally, the proposed methodology allowed to determine the injected mass flow and to capture the transient injection events, such as the opening and closing stages. Moreover, mass flow rate measurements of the injector were performed under the same operating conditions, determining the influence of the injection pressure, cooling temperature, counter pressure and fluid properties. Regarding the pressure, the tendency was as expected, the higher the injection pressure the higher the Momentum flux and flow rate. Results showed that an increment of the cooling temperature of the injector induces the appearance of flash boiling conditions, having an impact on the total injected mass and momentum flux, changing the behaviour of the spray. For the same conditions, water has a higher momentum flux than the UWS due to differences in fluid properties and velocity at the nozzle exit. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021-08-01 |
| 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/10251/183622 |
| url |
https://riunet.upv.es/handle/10251/183622 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.relation.none.fl_str_mv |
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 Universitat Politècnica de València https://doi.org/10.13039/501100004233 FPI-2018-S2-1368 Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 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) |
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Universitat Politècnica de València (UPV) |
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RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
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RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
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|
| _version_ |
1869414036457652224 |
| spelling |
Using momentum flux measurements to determine the injection rate of a commercial Urea Water Solution injectorPayri, Raul|||0000-0001-7428-5510Bracho Leon, Gabriela|||0000-0002-9198-7044Marti-Aldaravi, Pedro|||0000-0003-4650-4004Moreno-Gasparotto, Armando EnriqueMomentum fluxUWSRate of injectionSCRAdBlueLow pressure atomizerMAQUINAS Y MOTORES TERMICOSINGENIERIA AEROESPACIAL[EN] The Selective Catalytic Reduction (SCR) technology allows the transformation of the Nitrous Oxide emissions present in exhaust gases into gaseous nitrogen and water. For a proper operation of the SCR, a urea-water solution (UWS) injector must dose an adequate amount of liquid into the exhaust pipe in order to avoid deposit formation and to guarantee the SCR system efficiency. This task requires the knowledge of the performance of the injector. Then, the goal of this work is to study the hydraulic performance of a UWS injector, by means of measuring the spray momentum flux in order to understand the influence of different variables as injected fluid, injection pressure, counter pressure and cooling temperature of the injector on the flow characteristics. The tested injector was cooled at three different temperatures, 60, 90 and 120 degrees C, the injection pressure of the UWS was set at 5, 7 and 9 bar, with counter pressures of 750, 900, 1000 and 2000 mbar for the two tested fluids, water and UWS. The measurements were carried out using an experimental facility developed at CMT-Motores Termicos for the determination of spray momentum flux, where a piezoelectric pressure sensor was located near the nozzle exit of the injector, which measures the impact force of the spray. Additionally, the proposed methodology allowed to determine the injected mass flow and to capture the transient injection events, such as the opening and closing stages. Moreover, mass flow rate measurements of the injector were performed under the same operating conditions, determining the influence of the injection pressure, cooling temperature, counter pressure and fluid properties. Regarding the pressure, the tendency was as expected, the higher the injection pressure the higher the Momentum flux and flow rate. Results showed that an increment of the cooling temperature of the injector induces the appearance of flash boiling conditions, having an impact on the total injected mass and momentum flux, changing the behaviour of the spray. For the same conditions, water has a higher momentum flux than the UWS due to differences in fluid properties and velocity at the nozzle exit.This work has been partially funded by Spanish Ministerio de Ciencia, Innovacion y Universidades through project RTI2018099706B100. The author A. Moreno thanks the Universitat Politecnica de Valencia for his predoctoral contract (FPI2018S213) , which is included within the framework of Programa de Apoyo para la Investigacion y Desarrollo (PAID).ElsevierDepartamento de Máquinas y Motores TérmicosEscuela Técnica Superior de Ingeniería Aeroespacial y Diseño IndustrialInstituto Universitario de Investigación CMT - Clean Mobility & ThermofluidsEscuela Técnica Superior de Ingeniería IndustrialAgencia Estatal de InvestigaciónUniversitat Politècnica de ValènciaRepositorio Institucional de la Universitat Politècnica de València Riunet20212021-08-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/183622reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengAgencia 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 RESOLUCIONUniversitat Politècnica de València https://doi.org/10.13039/501100004233 FPI-2018-S2-1368Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 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:10251/1836222026-06-13T07:49:27Z |
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15.198674 |