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Exploring the limits of the reactivity controlled compression ignition combustion concept in a light-duty diesel engine and the influence of the direct-injected fuel properties

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Exploring the limits of the reactivity controlled compression ignition combustion concept in a light-duty diesel engine and the influence of the direct-injected fuel properties

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dc.contributor.author Benajes, Jesús es_ES
dc.contributor.author García Martínez, Antonio es_ES
dc.contributor.author Monsalve-Serrano, Javier es_ES
dc.contributor.author Villalta-Lara, David es_ES
dc.date.accessioned 2019-06-28T20:02:53Z
dc.date.available 2019-06-28T20:02:53Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0196-8904 es_ES
dc.identifier.uri http://hdl.handle.net/10251/122862
dc.description.abstract [EN] This experimental work investigates the operational limits of the reactivity controlled compression ignition combustion concept in a light-duty single-cylinder diesel engine using the stock compression ratio (17.1:1) with specific constraints. In addition, the effects of using different direct-injected fuels on engine-out emissions and performance are analyzed. First, an engine mapping was performed using diesel and gasoline as direct-injected and port-injected fuels, respectively. The operational limits of the reactivity controlled compression ignition concept have been found to be confined in the region defined from 2 to 5 bar indicated mean effective pressure at 1000 rev/min and from 4 to 8 bar indicated mean effective pressure at 3000 rev/min. In that portion of the map, nitrogen oxides and smoke emissions were below 0.4 g/kW h and 0.1 filter smoke number simultaneously, and the engine mechanical limits were respected. Later, the effects of the direct-injected fuel properties have been evaluated at the points that define the frontiers of maximum and minimum engine load in the baseline engine map (diesel/gasoline). To do this, three additional fuels based on diesel-gasoline mixings at different ratios (90%-10%, 70%-30% and 50%-50%), also known as dieseline, were used as direct-injected fuel instead of 100% diesel. To isolate the effects of each direct-injected fuel, the same engine settings were used for the comparison. The results show that, as the reactivity gradient between the high and low reactivity fuel diminishes, the sequential autoignition achieved in reactivity controlled compression ignition due to local combustion reactions switches to a more kinetically controlled homogeneous charge compression ignition-like combustion process. Finally, all the fuels were found to be capable of operating inside the emissions restrictions imposed by doing little modifications on the baseline calibration. However, no clear potential was found versus using 100% diesel as high-reactivity fuel. es_ES
dc.description.sponsorship The authors gratefully acknowledge General Motors Global Research & Development for providing the engine used in this investigation. The authors also acknowledge FEDER and Spanish Ministerio de Economia y Competitividad for partially supporting this research through HiReCo project (TRA2014-58870-R). The author J. Monsalve-Serrano acknowledges the financial support from the Universitat Politecnica de Valencia under the grant "Ayudas Para la Contratacion de Doctores para el Acceso al Sistema Espanol de Ciencia, Tecnologia e Innovacion". es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Energy Conversion and Management es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Reactivity controlled compression ignition es_ES
dc.subject Dual-fuel combustion es_ES
dc.subject Engine map es_ES
dc.subject Efficiency es_ES
dc.subject Dieseline es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Exploring the limits of the reactivity controlled compression ignition combustion concept in a light-duty diesel engine and the influence of the direct-injected fuel properties es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.enconman.2017.12.028 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//TRA2014-58870-R/ES/REDUCCION DE LAS EMISIONES DE CO2 EN VEHICULOS PARA TRANSPORTE USANDO COMBUSTION DUAL NATURAL GAS-DIESEL/ 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 Benajes, J.; García Martínez, A.; Monsalve-Serrano, J.; Villalta-Lara, D. (2018). Exploring the limits of the reactivity controlled compression ignition combustion concept in a light-duty diesel engine and the influence of the direct-injected fuel properties. Energy Conversion and Management. 157:277-287. https://doi.org/10.1016/j.enconman.2017.12.028 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.enconman.2017.12.028 es_ES
dc.description.upvformatpinicio 277 es_ES
dc.description.upvformatpfin 287 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 157 es_ES
dc.relation.pasarela S\348860 es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES


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