López, JJ.; Molina, S.; García Martínez, A.; Valero-Marco, J.; Justet, F. (2017). Analysis of the potential of a new automotive two-stroke gasoline engine able to operate in spark ignition and controlled autoignition combustion modes. Applied Thermal Engineering. 126:834-847. doi:10.1016/j.applthermaleng.2017.07.213
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/103724
Title:
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Analysis of the potential of a new automotive two-stroke gasoline engine able to operate in spark ignition and controlled autoignition combustion modes
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Author:
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López, J. Javier
Molina, Santiago
García Martínez, Antonio
Valero-Marco, Jorge
Justet, F.
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UPV Unit:
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Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics
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Issued date:
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Abstract:
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[EN] The need to reduce the emissions coming from automobiles encourages the attempts to study different engine configurations and new combustion strategies. In this case, a two stroke engine able to operate in Controlled ...[+]
[EN] The need to reduce the emissions coming from automobiles encourages the attempts to study different engine configurations and new combustion strategies. In this case, a two stroke engine able to operate in Controlled Autolgnition (CAI) and Spark Ignition (SI) combustion modes is studied, with the purpose of getting lower NO and CO2 emissions than with other currently employed solutions. The engine configuration retained for the research is a uniflow scavenging configuration with intake ports in the cylinder liner and exhaust valves in the cylinder head. These valves are controlled by a Variable Valve Timing (VVT) system. The scavenging is guaranteed by an external blower driven by the crankshaft. Finally, the fuel supply is performed by a direct injection (DI) air-assisted fuel injection system.
Through this paper the adjusting parameters to control the engine operation, as well as their influence on the CAI and SI combustion modes have been studied, providing the most relevant information and knowledge for controlling and optimizing the engine performance. Once these controlling parameters were studied, an EGR system was introduced in order to analyze the effect of this other parameter over the combustion process, as well as to determine the potential benefits of introducing such a system in this type of engines. (C) 2017 Elsevier Ltd. All rights reserved.
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Subjects:
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Two-stoke engine
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CAI
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HCCI
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Spark ignition
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New combustion modes
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Air-assisted injection
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Copyrigths:
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Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
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Source:
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Applied Thermal Engineering. (issn:
1359-4311
)
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DOI:
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10.1016/j.applthermaleng.2017.07.213
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.applthermaleng.2017.07.213
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Project ID:
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MINECO/TRA2015-67136-R
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Thanks:
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The authors would like to thank different members of the CMTMotores Termicos team of the Universitat Politecnica de Valencia for their contribution to this work. The authors would also like to thank the Universitat Politecnica ...[+]
The authors would like to thank different members of the CMTMotores Termicos team of the Universitat Politecnica de Valencia for their contribution to this work. The authors would also like to thank the Universitat Politecnica de Valencia for financing the PhD. studies of Jorge Valero-Marco (contract 3102). This work was partly funded by Renault S.A.S., the contribution of which is greatly acknowledged, and by FEDER and the Spanish Government through project TRA2015-67136-R.
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Type:
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Artículo
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