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Effects of multiple injection strategies on gaseous emissions and particle size distribution in a two-stroke compression-ignition engine operating with the gasoline partially premixed combustion concept

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dc.contributor.author Bermúdez, Vicente es_ES
dc.contributor.author Ruiz-Rosales, Santiago es_ES
dc.contributor.author Novella Rosa, Ricardo es_ES
dc.contributor.author Soto-Izquierdo, Lian es_ES
dc.date.accessioned 2019-09-27T10:41:33Z
dc.date.available 2019-09-27T10:41:33Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0954-4070 es_ES
dc.identifier.uri http://hdl.handle.net/10251/126496
dc.description.abstract [EN] In order to improve performance of internal combustion engines and meet the requirements of the new pollutant emission regulations, advanced combustion strategies have been investigated. The newly designed partially premixed combustion concept has demonstrated its potential for reducing NOx and particulate matter emissions combined with high indicated efficiencies while still retaining proper control over combustion process by using different injection strategies. In this study, parametric variations of injection pressure, second injection and third injection timings were experimentally performed to analyze the effect of the injection strategy over the air/fuel mixture process and its consequent impact on gaseous compound emissions and particulate matter emissions including its size distribution. Tests were carried out on a newly designed two-stroke high-speed direct injection compression-ignition engine operating with the partially premixed combustion concept using 95 research octane number gasoline fuel. A scanning particle sizer was used to measure the particles size distribution and the HORIBA 7100DEGR gas analyzer system to determine gaseous emissions. Three different steady-state operation modes in terms of indicated mean effective pressure and engine speed were investigated: 3.5 bar indicated mean effective pressure and 2000 r/min, 5.5 bar indicated mean effective pressure and 2000 r/min, and 5.5 bar indicated mean effective pressure and 2500 r/min. The experimental results confirm how the use of an adequate injection strategy is indispensable to obtain low exhaust emissions values and a balance between the different pollutants. With the increase in the injection pressure and delay in the second injection, it was possible to obtain a trade-off between NOx and particulate matter emission reduction, while there was an increase in hydrocarbon and carbon monoxide emissions under these conditions. In addition, the experiments showed an increase in particle number emissions and a progressive shift in the particles size distribution toward larger sizes, increasing the accumulation-mode particles and reducing the nucleation-mode particles with the decrease in the injection pressure and delay in the third injection. es_ES
dc.description.sponsorship The authors kindly recognize the technical support provided by Mr Pascal Tribotte from RENAULT SAS in the frame of the DREAM-DELTA-68530-13-3205 Project. es_ES
dc.language Inglés es_ES
dc.publisher SAGE Publications es_ES
dc.relation.ispartof Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Two-stroke engine es_ES
dc.subject Gasoline partially premixed combustion concept es_ES
dc.subject Injection strategy es_ES
dc.subject Gaseous emissions es_ES
dc.subject Particle number emissions es_ES
dc.subject Particle size distribution es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Effects of multiple injection strategies on gaseous emissions and particle size distribution in a two-stroke compression-ignition engine operating with the gasoline partially premixed combustion concept es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1177/0954407018802960 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/Renault, S.A.S.//DREAM-DELTA-68530-13-3205/
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Bermúdez, V.; Ruiz-Rosales, S.; Novella Rosa, R.; Soto-Izquierdo, L. (2018). Effects of multiple injection strategies on gaseous emissions and particle size distribution in a two-stroke compression-ignition engine operating with the gasoline partially premixed combustion concept. Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering. 233(10):1-19. https://doi.org/10.1177/0954407018802960 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1177/0954407018802960 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 19 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 233 es_ES
dc.description.issue 10 es_ES
dc.relation.pasarela S\371314 es_ES
dc.contributor.funder Renault, S.A.S.


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