- -

Investigation on Multiple Injection Strategies for Gasoline PPC Operation in a Newly Designed 2-Stroke HSDI Compression Ignition Engine

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Investigation on Multiple Injection Strategies for Gasoline PPC Operation in a Newly Designed 2-Stroke HSDI Compression Ignition Engine

Show simple item record

Files in this item

dc.contributor.author Benajes Calvo, Jesus Vicente es_ES
dc.contributor.author Novella Rosa, Ricardo es_ES
dc.contributor.author De Lima Moradell, Daniela Andreina es_ES
dc.contributor.author Tribotte, Pascal es_ES
dc.date.accessioned 2017-03-13T12:29:47Z
dc.date.available 2017-03-13T12:29:47Z
dc.date.issued 2015-04
dc.identifier.issn 1946-3944
dc.identifier.uri http://hdl.handle.net/10251/78707
dc.description.abstract Partially Premixed Combustion (PPC) of fuels in the gasoline octane range has proven its potential to achieve simultaneous reduction in soot and NOX emissions, combined with high indicated efficiencies; while still retaining proper control over combustion phasing with the injection event, contrary to fully premixed strategies. However, gasoline fuels with high octane number as the commonly available for the public provide a challenge to ensure reliable ignition especially in the low load range, while fuel blends with lower octane numbers present problems for extending the ignition delay in the high load range and avoid the onset of knocking-like combustion. Thus, choosing an appropriate fuel and injection strategy is critical to solve these issues, assuring successful PPC operation in the full engine map. In this framework, the objective of the present investigation consists of evaluating the use of multiple injection strategies for achieving stable PPC operation, attaining low NOX and soot emissions together with high efficiencies. This research was carried out in a single-cylinder DOHC 2-stroke HSDI CI engine using 95 Research Octane Number (RON) gasoline fuel. Three different operating conditions in terms of indicated mean effective pressure (IMEP) and speed were investigated: 3.1 bar IMEP and 1250 rpm, 5.5 bar IMEP and 1500 rpm and 10.4 bar IMEP and 1500 rpm. Parametric variations of injection timings, at different rail pressures and different fuel split between injections were experimentally performed to analyze the effect of the injection strategy over the combustion process, exhaust emissions and efficiency levels. Experimental results confirm how using an appropriate injection strategy helps to achieve stable PPC operation in the selected operating conditions; with competitive combustion stability, lower NOX and soot levels, and moderate CO and HC emissions with combustion efficiency over 96%, compared to Conventional Diesel Combustion (CDC). Finally, a detailed analysis of the local cylinder conditions was performed by means of 3D-CFD simulations in order to provide guidelines for further optimization of the gasoline PPC concept, when using multiple injection strategies in the 2-stroke engine under development. es_ES
dc.language Inglés es_ES
dc.publisher SAE International es_ES
dc.relation.ispartof SAE International Journal of Engines es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Antiknock rating es_ES
dc.subject Computational fluid dynamics es_ES
dc.subject Diesel engines es_ES
dc.subject Efficiency es_ES
dc.subject Engine cylinders es_ES
dc.subject Engines es_ES
dc.subject Fuels es_ES
dc.subject Gasoline es_ES
dc.subject Ignition es_ES
dc.subject Soot es_ES
dc.subject Combustion efficiencies es_ES
dc.subject Combustion stability es_ES
dc.subject Compression ignition engine es_ES
dc.subject Different operating conditions es_ES
dc.subject Indicated mean effective pressure es_ES
dc.subject Partially premixed combustion es_ES
dc.subject Research octane number es_ES
dc.subject Simultaneous reduction es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Investigation on Multiple Injection Strategies for Gasoline PPC Operation in a Newly Designed 2-Stroke HSDI Compression Ignition Engine es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.4271/2015-01-0830
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny es_ES
dc.description.bibliographicCitation Benajes Calvo, JV.; Novella Rosa, R.; De Lima Moradell, DA.; Tribotte, P. (2015). Investigation on Multiple Injection Strategies for Gasoline PPC Operation in a Newly Designed 2-Stroke HSDI Compression Ignition Engine. SAE International Journal of Engines. 8(2):758-774. doi:10.4271/2015-01-0830 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.4271/2015-01-0830 es_ES
dc.description.upvformatpinicio 758 es_ES
dc.description.upvformatpfin 774 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 8 es_ES
dc.description.issue 2 es_ES
dc.relation.senia 305022 es_ES


This item appears in the following Collection(s)

Show simple item record