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Experimental investigation of the effect of orifices inclination angle in multihole diesel injector nozzles. Part-1-Hydraulic performance

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Experimental investigation of the effect of orifices inclination angle in multihole diesel injector nozzles. Part-1-Hydraulic performance

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dc.contributor.author Salvador, Francisco Javier es_ES
dc.contributor.author López, J. Javier es_ES
dc.contributor.author De La Morena, Joaquín es_ES
dc.contributor.author Crialesi Esposito, Marco es_ES
dc.date.accessioned 2019-06-30T20:01:27Z
dc.date.available 2019-06-30T20:01:27Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0016-2361 es_ES
dc.identifier.uri http://hdl.handle.net/10251/122915
dc.description.abstract [EN] Nozzle hydraulic performance has a significant impact on diesel spray development and combustion characteristics. Thus, it is important to understand the links between the nozzle geometry, the internal flow features and the spray formation. In this paper, a detailed analysis of the impact of the nozzle orifices inclination angle on its hydraulic performance is performed. For this purpose, three different nozzles with included angles of 90, 140 and 155 degrees are evaluated. Instantaneous injection rate and momentum flux are measured on a set of injector operating conditions (mainly injection pressure and discharge pressure). The results show that higher inclination angles lead to smaller mass flow and momentum flux at steady-state conditions, due to the higher losses at the orifice inlet. These losses are translated in lower both area and velocity coefficients. Nevertheless, the impact of this parameter is limited thanks to the counter-acting effect of the hydrogrinding process, which produces larger rounding radii at the orifice inlet as the included angle increases. Based on the experimental results, correlations of the discharge coefficient as a function of the Reynolds number are obtained and evaluated. (C) 2017 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship This work was partly sponsored by "Ministerio de Economia y Competitividad", of the Spanish Government, in the frame of the Project "Estudio de la interaccion chorro-pared en condiciones realistas de motor", Reference TRA2015-67679-c2-1-R. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MINECO/TRA2015-67679-C2-1-R es_ES
dc.relation.ispartof Fuel es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Diesel nozzle es_ES
dc.subject Orifice inclination es_ES
dc.subject Flow coefficients es_ES
dc.subject Momentum flux es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Experimental investigation of the effect of orifices inclination angle in multihole diesel injector nozzles. Part-1-Hydraulic performance es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.fuel.2017.04.019 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 Salvador, FJ.; López, JJ.; De La Morena, J.; Crialesi Esposito, M. (2018). Experimental investigation of the effect of orifices inclination angle in multihole diesel injector nozzles. Part-1-Hydraulic performance. Fuel. 213:207-214. https://doi.org/10.1016/j.fuel.2017.04.019 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.fuel.2017.04.019 es_ES
dc.description.upvformatpinicio 207 es_ES
dc.description.upvformatpfin 214 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 213 es_ES
dc.relation.pasarela 346168 es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES


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