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Effects of low-pressure EGR on gaseous emissions and particle size distribution from a dual-mode dual-fuel (DMDF) concept in a medium-duty engine

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Effects of low-pressure EGR on gaseous emissions and particle size distribution from a dual-mode dual-fuel (DMDF) concept in a medium-duty engine

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dc.contributor.author Macian Martinez, Vicente es_ES
dc.contributor.author Bermúdez, Vicente es_ES
dc.contributor.author Villalta-Lara, David es_ES
dc.contributor.author Soto-Izquierdo, Lian es_ES
dc.date.accessioned 2020-05-07T05:57:25Z
dc.date.available 2020-05-07T05:57:25Z
dc.date.issued 2019-12-25 es_ES
dc.identifier.issn 1359-4311 es_ES
dc.identifier.uri http://hdl.handle.net/10251/142685
dc.description.abstract [EN] The application of a low-temperature combustion concept, such as RCCI combustion under real engine operating conditions is extremely complex. However, the implementation of the dual-mode dual-fuel (DMDF) strategy allows operating in low-medium load with the RCCI combustion and in high load with dual-fuel diffusive combustion. This allows taking advantage of the benefits of RCCI combustion as the simultaneous reduction of PM and NOx emissions. However, there are still serious challenges that required to solve, such as the high-pressure rise rate and the excessive CO and HC emissions. In this sense, this work shows how the implementation and an adequate adjustment of the cooled LP-EGR rate significantly minimize these problems and also shows how the LP-EGR has a greater impact on the DMDF than on the CDC concept. This work has been performed in a modern medium-duty diesel engine fueled with standard gasoline and diesel fuels, with which a cooled LP-EGR loop has been coupled. A TSI Scanning Particle Sizer (SMPS 3936L75) was used to measure the particles size distribution and the Horiba MEXA-ONE-D1-EGR gas analyzer system to determine gaseous emissions. A parametric variation of the LP-EGR rate was experimentally performed to analyze the effect over each combustion process that encompasses the DMDF concept (fully premixed RCCI, highly premixed RCCI and dual-fuel diffusion) and its consequent impact on gaseous and particle emissions. In addition, results were compared against the CDC concept to state the benefits of the DMDF concept. Among the different results obtained, it can be highlighted that during the RCCI strategy the increase in LP-EGR rate provided a reduction in NOx emissions. Nonetheless, unlike that fully premixed RCCI in highly premixed RCCI combustion, the PM emissions increased with this increment in the LP-EGR rate, shifting the size distribution of particle toward larger sizes, but decreasing the HC and CO emissions. Finally, with the exception of the high HC and CO emissions in fully premixed RCCI, in all the combustion strategies of the DMDF concept, a reduction of the analyzed pollutants was observed when compared with the CDC mode. es_ES
dc.description.sponsorship This investigation has been funded by VOLVO Group Trucks Technology. The authors also acknowledge the Spanish economy and competitiveness ministry for partially supporting this research (HiReCo TRA2014-58870-R). es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation 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.relation.ispartof Applied Thermal Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Dual-fuel combustion es_ES
dc.subject Reactivity controlled compression ignition es_ES
dc.subject Low-pressure EGR es_ES
dc.subject Gaseous emissions and particle size distribution es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Effects of low-pressure EGR on gaseous emissions and particle size distribution from a dual-mode dual-fuel (DMDF) concept in a medium-duty engine es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.applthermaleng.2019.114245 es_ES
dc.rights.accessRights Embargado es_ES
dc.date.embargoEndDate 2021-08-12 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 Macian Martinez, V.; Bermúdez, V.; Villalta-Lara, D.; Soto-Izquierdo, L. (2019). Effects of low-pressure EGR on gaseous emissions and particle size distribution from a dual-mode dual-fuel (DMDF) concept in a medium-duty engine. Applied Thermal Engineering. 163:1-15. https://doi.org/10.1016/j.applthermaleng.2019.114245 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.applthermaleng.2019.114245 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 15 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 163 es_ES
dc.relation.pasarela S\392946 es_ES
dc.contributor.funder Volvo Group Trucks Technology es_ES
dc.contributor.funder Ministerio de Economía y Empresa es_ES


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