Two strokes Diesel engine - Promising solution to reduce CO2 emissions

Two-stroke engines have dropped out of the automobile market for a long time due to severe drawbacks. Unfortunately, the comparison with the performances of four-stroke engines was not in favour of two-stroke ones. Nevertheless, the needs of a more compact engine with a better ratio of the mass and...

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Autores: Tribotte, Pascal, Ravet, Frederic, Dugue, Vincent, Obernesser, Philippe, Quenchon, Nicolas, De Lima Moradell, Daniela Andreina, Benajes, Jesús|||0000-0002-1653-9188, Novella Rosa, Ricardo|||0000-0002-5123-6924
Formato: artículo
Fecha de publicación:2012
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/47215
Acesso em linha:https://riunet.upv.es/handle/10251/47215
Access Level:acceso abierto
Palavra-chave:Two-Stroke Engine
Diesel engines
Combustion efficiencies
MAQUINAS Y MOTORES TERMICOS
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spelling Two strokes Diesel engine - Promising solution to reduce CO2 emissionsTribotte, PascalRavet, FredericDugue, VincentObernesser, PhilippeQuenchon, NicolasDe Lima Moradell, Daniela AndreinaBenajes, Jesús|||0000-0002-1653-9188Novella Rosa, Ricardo|||0000-0002-5123-6924Two-Stroke EngineDiesel enginesCombustion efficienciesMAQUINAS Y MOTORES TERMICOSTwo-stroke engines have dropped out of the automobile market for a long time due to severe drawbacks. Unfortunately, the comparison with the performances of four-stroke engines was not in favour of two-stroke ones. Nevertheless, the needs of a more compact engine with a better ratio of the mass and size versus power motivated research efforts at the beginning of the 90's. Regrettably, these efforts did not result in commercial success and automobile manufacturers kept four-stroke engine architecture as base architecture. However, the two-stroke engine is a highly favourable concept for downsizing and cost reduction by reducing the number of cylinders without NVH penalties. All that added to the maturity of CFD calculations and the availability of high power electronic for control and fuel injection encouraged the Renault research division to have a closer look into its architecture. The study deals with a two-cylinder Diesel engine based on two-stroke valves engine. Air admission and exhausts gas are done through four valves per cylinder; fuel injection is done through ten holes nozzle at 1800 bar of pressure. The company Delphi, partner of the project, provided the injection system. The displacement of engine is 730 cm3 and the engine is designed for a range of power of about 35-50 kW and a range of torque of 110 - 145 N.m. The design of the scavenging was achieved with the help of 3D simulation based on the best 3D simulation tools available. More than 250 calculations were completed to determine the best design of the cylinder-head reaching the objective of scavenging performances. At the end of this step, the best compromise was determined between the mass of fresh gas and the mass of burnt gas in the cylinder respecting combustion and engine efficiency criterias. Air supercharging system was designed in cooperation between the partners Renault, Le Moteur Moderne and University of Technology of Prague. The injection and combustion testing and optimisation were done on a one cylinder engine at CMT, University of Valencia, partner of the project. The set of parameters was explored and optimised to reach the best compromise between the combustion efficiency and the target of pollutant emissions to reach the EURO 6 standards. Finally, the optimisation of the engine, including the air loop system, calibration and control is planed in 2012 and will be done at IFPEN, partner of project. The objectives, the design process, the major technical breakthrough as well as its detailed results will be presented in this paper.The work was split between the partners of the project supported by the European Commission.ElsevierDepartamento 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 Riunet20122012-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/47215reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial - Compartir igual (by-nc-sa) http://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/472152026-06-13T07:49:27Z
dc.title.none.fl_str_mv Two strokes Diesel engine - Promising solution to reduce CO2 emissions
title Two strokes Diesel engine - Promising solution to reduce CO2 emissions
spellingShingle Two strokes Diesel engine - Promising solution to reduce CO2 emissions
Tribotte, Pascal
Two-Stroke Engine
Diesel engines
Combustion efficiencies
MAQUINAS Y MOTORES TERMICOS
title_short Two strokes Diesel engine - Promising solution to reduce CO2 emissions
title_full Two strokes Diesel engine - Promising solution to reduce CO2 emissions
title_fullStr Two strokes Diesel engine - Promising solution to reduce CO2 emissions
title_full_unstemmed Two strokes Diesel engine - Promising solution to reduce CO2 emissions
title_sort Two strokes Diesel engine - Promising solution to reduce CO2 emissions
dc.creator.none.fl_str_mv Tribotte, Pascal
Ravet, Frederic
Dugue, Vincent
Obernesser, Philippe
Quenchon, Nicolas
De Lima Moradell, Daniela Andreina
Benajes, Jesús|||0000-0002-1653-9188
Novella Rosa, Ricardo|||0000-0002-5123-6924
author Tribotte, Pascal
author_facet Tribotte, Pascal
Ravet, Frederic
Dugue, Vincent
Obernesser, Philippe
Quenchon, Nicolas
De Lima Moradell, Daniela Andreina
Benajes, Jesús|||0000-0002-1653-9188
Novella Rosa, Ricardo|||0000-0002-5123-6924
author_role author
author2 Ravet, Frederic
Dugue, Vincent
Obernesser, Philippe
Quenchon, Nicolas
De Lima Moradell, Daniela Andreina
Benajes, Jesús|||0000-0002-1653-9188
Novella Rosa, Ricardo|||0000-0002-5123-6924
author2_role author
author
author
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 Two-Stroke Engine
Diesel engines
Combustion efficiencies
MAQUINAS Y MOTORES TERMICOS
topic Two-Stroke Engine
Diesel engines
Combustion efficiencies
MAQUINAS Y MOTORES TERMICOS
description Two-stroke engines have dropped out of the automobile market for a long time due to severe drawbacks. Unfortunately, the comparison with the performances of four-stroke engines was not in favour of two-stroke ones. Nevertheless, the needs of a more compact engine with a better ratio of the mass and size versus power motivated research efforts at the beginning of the 90's. Regrettably, these efforts did not result in commercial success and automobile manufacturers kept four-stroke engine architecture as base architecture. However, the two-stroke engine is a highly favourable concept for downsizing and cost reduction by reducing the number of cylinders without NVH penalties. All that added to the maturity of CFD calculations and the availability of high power electronic for control and fuel injection encouraged the Renault research division to have a closer look into its architecture. The study deals with a two-cylinder Diesel engine based on two-stroke valves engine. Air admission and exhausts gas are done through four valves per cylinder; fuel injection is done through ten holes nozzle at 1800 bar of pressure. The company Delphi, partner of the project, provided the injection system. The displacement of engine is 730 cm3 and the engine is designed for a range of power of about 35-50 kW and a range of torque of 110 - 145 N.m. The design of the scavenging was achieved with the help of 3D simulation based on the best 3D simulation tools available. More than 250 calculations were completed to determine the best design of the cylinder-head reaching the objective of scavenging performances. At the end of this step, the best compromise was determined between the mass of fresh gas and the mass of burnt gas in the cylinder respecting combustion and engine efficiency criterias. Air supercharging system was designed in cooperation between the partners Renault, Le Moteur Moderne and University of Technology of Prague. The injection and combustion testing and optimisation were done on a one cylinder engine at CMT, University of Valencia, partner of the project. The set of parameters was explored and optimised to reach the best compromise between the combustion efficiency and the target of pollutant emissions to reach the EURO 6 standards. Finally, the optimisation of the engine, including the air loop system, calibration and control is planed in 2012 and will be done at IFPEN, partner of project. The objectives, the design process, the major technical breakthrough as well as its detailed results will be presented in this paper.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-01-01
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/10251/47215
url https://riunet.upv.es/handle/10251/47215
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
Reconocimiento - No comercial - Compartir igual (by-nc-sa)
http://creativecommons.org/licenses/by-nc-sa/4.0/
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
Reconocimiento - No comercial - Compartir igual (by-nc-sa)
http://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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