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Assessment of air management strategies on particulate number and size distributions from a 2-stroke compression-ignition engine operating with gasoline Partially Premixed Combustion concept

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Assessment of air management strategies on particulate number and size distributions from a 2-stroke compression-ignition engine operating with gasoline Partially Premixed Combustion concept

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dc.contributor.author Bermúdez, Vicente es_ES
dc.contributor.author Ruiz, S. es_ES
dc.contributor.author Novella Rosa, Ricardo es_ES
dc.contributor.author Soto-Izquierdo, Lian es_ES
dc.date.accessioned 2019-07-11T20:01:58Z
dc.date.available 2019-07-11T20:01:58Z
dc.date.issued 2018 es_ES
dc.identifier.issn 1468-0874 es_ES
dc.identifier.uri http://hdl.handle.net/10251/123504
dc.description.abstract [EN] The newly designed partially premixed combustion concept has demonstrated its potential to reduce nitrogen oxides and particulate matter emissions combined with highly indicated efficiencies. However, it is highly dependent of the ignition characteristics of the fuel and the air/fuel mixture preparation. Therefore, the proper selection of an injection strategy, of the combustion chamber design and of the air management strategy are critical to ensuring successful partially premixed combustion operation in the full engine map. The objective of the present investigation is to evaluate the use of multiple air management strategies over the air/fuel effective equivalence ratio (feff) and cylinder charge reactivity and its consequent impact on particle number emissions and particle size distribution. Tests were carried out in a newly designed 2-stroke high-speed direct-injection compression-ignition engine operating with partially premixed combustion concept using 95-research-octane-number gasoline fuel. A scanning mobility particle sizer was used to measure the size distribution of engine-exhaust particles in the range from 6.3 to 237 nm. Three different steady-state operation modes in terms of indicated mean effective pressure and engine speed were investigated. The experiments showed an increase in the particle number emissions and a progressive shift in the particle size toward larger sizes, increasing the accumulation-mode particles and reducing the nucleation-mode particles with the decrease in the differential pressure between intake and exhaust (DP) and the valve overlap period. Finally, the particle formation process was limited by the increase in the exhaust gas recirculation rate. es_ES
dc.language Inglés es_ES
dc.publisher SAGE Publications es_ES
dc.relation.ispartof International Journal of Engine Research es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject 2-stroke engine es_ES
dc.subject Particle number emissions es_ES
dc.subject Particle size distribution es_ES
dc.subject Gasoline partially premixed combustion concept es_ES
dc.subject Air management strategies es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Assessment of air management strategies on particulate number and size distributions from a 2-stroke compression-ignition engine operating with gasoline Partially Premixed Combustion concept es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1177/1468087418802706 es_ES
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, S.; Novella Rosa, R.; Soto-Izquierdo, L. (2018). Assessment of air management strategies on particulate number and size distributions from a 2-stroke compression-ignition engine operating with gasoline Partially Premixed Combustion concept. International Journal of Engine Research. 1-22. https://doi.org/10.1177/1468087418802706 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1177/1468087418802706 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 22 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.relation.pasarela 378470 es_ES


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