Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanol

[EN] This work investigates the load limits of reactivity controlled compression ignition combustion, a dual-fuel concept which combines port fuel injection of low-reactivity fuels with direct injection of diesel fuel, in a medium-duty diesel engine. The experiments were conducted in a single-cylind...

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Autores: Benajes, Jesús|||0000-0002-1653-9188, García Martínez, Antonio|||0000-0001-5783-4936, Monsalve-Serrano, Javier|||0000-0001-8593-095X, Balloul, Iyad, Pradel, Gérard
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/141301
Acceso en línea:https://riunet.upv.es/handle/10251/141301
Access Level:acceso abierto
Palabra clave:Reactivity Controlled Compression Ignition
Dual-Fuel Combustion
EURO VI Emissions
Efficiency
Biofuels
MAQUINAS Y MOTORES TERMICOS
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repository_id_str
spelling Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanolBenajes, Jesús|||0000-0002-1653-9188García Martínez, Antonio|||0000-0001-5783-4936Monsalve-Serrano, Javier|||0000-0001-8593-095XBalloul, IyadPradel, GérardReactivity Controlled Compression IgnitionDual-Fuel CombustionEURO VI EmissionsEfficiencyBiofuelsMAQUINAS Y MOTORES TERMICOS[EN] This work investigates the load limits of reactivity controlled compression ignition combustion, a dual-fuel concept which combines port fuel injection of low-reactivity fuels with direct injection of diesel fuel, in a medium-duty diesel engine. The experiments were conducted in a single-cylinder diesel engine derived from the multi-cylinder production engine. In this sense, the stock turbocharger and exhaust gas recirculation systems were replaced by an external compressor and dedicated low-pressure exhaust gas recirculation loop, respectively. Additionally, a port fuel injector was installed in the intake manifold to allow gasoline injection. First, this article presents some results highlighting the effect of the exhaust gas recirculation rate, gasoline fraction, diesel start of injection, diesel injection strategy and intake temperature on the emissions, performance and combustion development in a representative operating condition: 1200r/min and 6.5bar indicated mean effective pressure (25% load). Later, with the aim of showing the reactivity controlled compression ignition potential, the best results in terms of performance and emissions at 25% load are compared against the multi-cylinder diesel engine from 950 to 2200r/min. Reactivity controlled compression ignition engine tests were developed taking into account limitations in nitrogen oxides (NOx) and soot emissions, in-cylinder pressure and maximum pressure rise rate. Finally, keeping the same constraints for testing, the load limits of reactivity controlled compression ignition concept are evaluated for all the engine speeds. Results suggest that reactivity controlled compression ignition allows fulfilling EURO VI limits for NOx and soot emissions without using selective catalytic reduction and diesel particulate filter aftertreatment systems at 25% load at all the engines speeds, providing better indicated efficiency than conventional diesel operation in most operating points. In addition, the maximum engine load that ensured the aforementioned constraints was around 35% for all the engine speeds, with a maximum indicated mean effective pressure of 8.8bar at 2200r/min. In this case, a strong reduction in carbon monoxide (CO) and unburned hydrocarbon (HC) emissions compared to the cases of 25% load was achieved at all the engine speeds.SAGE PublicationsDepartamento de Máquinas y Motores TérmicosEscuela Técnica Superior de Ingeniería Aeroespacial y Diseño IndustrialInstituto Universitario de Investigación CMT - Clean Mobility & ThermofluidsEscuela Técnica Superior de Ingeniería IndustrialRepositorio Institucional de la Universitat Politècnica de València Riunet20172017-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/141301reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/1413012026-06-13T07:49:27Z
dc.title.none.fl_str_mv Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanol
title Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanol
spellingShingle Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanol
Benajes, Jesús|||0000-0002-1653-9188
Reactivity Controlled Compression Ignition
Dual-Fuel Combustion
EURO VI Emissions
Efficiency
Biofuels
MAQUINAS Y MOTORES TERMICOS
title_short Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanol
title_full Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanol
title_fullStr Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanol
title_full_unstemmed Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanol
title_sort Evaluating the RCCI operating range limits in a high compression ratio medium-duty diesel engine fueled with biodiesel and ethanol
dc.creator.none.fl_str_mv Benajes, Jesús|||0000-0002-1653-9188
García Martínez, Antonio|||0000-0001-5783-4936
Monsalve-Serrano, Javier|||0000-0001-8593-095X
Balloul, Iyad
Pradel, Gérard
author Benajes, Jesús|||0000-0002-1653-9188
author_facet Benajes, Jesús|||0000-0002-1653-9188
García Martínez, Antonio|||0000-0001-5783-4936
Monsalve-Serrano, Javier|||0000-0001-8593-095X
Balloul, Iyad
Pradel, Gérard
author_role author
author2 García Martínez, Antonio|||0000-0001-5783-4936
Monsalve-Serrano, Javier|||0000-0001-8593-095X
Balloul, Iyad
Pradel, Gérard
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Máquinas y Motores Térmicos
Escuela Técnica Superior de Ingeniería Aeroespacial y Diseño Industrial
Instituto Universitario de Investigación CMT - Clean Mobility & Thermofluids
Escuela Técnica Superior de Ingeniería Industrial
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Reactivity Controlled Compression Ignition
Dual-Fuel Combustion
EURO VI Emissions
Efficiency
Biofuels
MAQUINAS Y MOTORES TERMICOS
topic Reactivity Controlled Compression Ignition
Dual-Fuel Combustion
EURO VI Emissions
Efficiency
Biofuels
MAQUINAS Y MOTORES TERMICOS
description [EN] This work investigates the load limits of reactivity controlled compression ignition combustion, a dual-fuel concept which combines port fuel injection of low-reactivity fuels with direct injection of diesel fuel, in a medium-duty diesel engine. The experiments were conducted in a single-cylinder diesel engine derived from the multi-cylinder production engine. In this sense, the stock turbocharger and exhaust gas recirculation systems were replaced by an external compressor and dedicated low-pressure exhaust gas recirculation loop, respectively. Additionally, a port fuel injector was installed in the intake manifold to allow gasoline injection. First, this article presents some results highlighting the effect of the exhaust gas recirculation rate, gasoline fraction, diesel start of injection, diesel injection strategy and intake temperature on the emissions, performance and combustion development in a representative operating condition: 1200r/min and 6.5bar indicated mean effective pressure (25% load). Later, with the aim of showing the reactivity controlled compression ignition potential, the best results in terms of performance and emissions at 25% load are compared against the multi-cylinder diesel engine from 950 to 2200r/min. Reactivity controlled compression ignition engine tests were developed taking into account limitations in nitrogen oxides (NOx) and soot emissions, in-cylinder pressure and maximum pressure rise rate. Finally, keeping the same constraints for testing, the load limits of reactivity controlled compression ignition concept are evaluated for all the engine speeds. Results suggest that reactivity controlled compression ignition allows fulfilling EURO VI limits for NOx and soot emissions without using selective catalytic reduction and diesel particulate filter aftertreatment systems at 25% load at all the engines speeds, providing better indicated efficiency than conventional diesel operation in most operating points. In addition, the maximum engine load that ensured the aforementioned constraints was around 35% for all the engine speeds, with a maximum indicated mean effective pressure of 8.8bar at 2200r/min. In this case, a strong reduction in carbon monoxide (CO) and unburned hydrocarbon (HC) emissions compared to the cases of 25% load was achieved at all the engine speeds.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/141301
url https://riunet.upv.es/handle/10251/141301
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv SAGE Publications
publisher.none.fl_str_mv SAGE Publications
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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