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Alireza Kakoee, Jacek Hunicz and Maciej Mikulski
This paper presents a comprehensive investigation into the design of a methane oxidation catalyst aftertreatment system specifically tailored for the Wärtsilä W31DF natural gas engine which has been converted to a reactivity-controlled compression igniti...
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Changhao Lu, Enzhe Song, Congcong Xu, Zuo Ni, Xiyu Yang and Quan Dong
Stable ultra-lean combustion is an effective way for natural gas engines to reduce NOx emissions, but it also has higher requirements for ignition stability. The passive pre-chamber can effectively increase the ignition energy and extend the lean-burn li...
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Nikolina Kovacev, Sheng Li, Weining Li, Soheil Zeraati-Rezaei, Athanasios Tsolakis and Khamis Essa
Additive manufacturing (AM) can revolutionise engineering by taking advantage of unconstrained design and overcoming the limitations of traditional manufacturing capabilities. A promising application of AM is in catalyst substrate manufacturing, aimed at...
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José Ramón Serrano, Pedro Piqueras, Enrique José Sanchis and Bárbara Diesel
Worldwide emission standards are extending their requirements to cover engine operation under extreme ambient conditions and fill the gap between the type-approval and real driving conditions. The new ambient boundaries affect the engine performance and ...
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Juan Carlos Martínez-Munuera, Javier A. Giménez-Mañogil, Roberto Matarrese, Lidia Castoldi and Avelina García-García
Ceria-based catalysts, with Cu in substitution of noble metals, were studied in a vertical microreactor system under isothermal conditions, where NOx was previously stored, followed by the reduction step conducted under H2. The possible remaining ad-NOx ...
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Pei-Chi Wu and Cherng-Yuan Lin
Ships are an important part in international trade transportation and a major source of pollution. Therefore, the International Maritime Organization (IMO) implemented an amendment to the International Convention for the Prevention of Pollution from Ship...
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Simone Casadei, Angela Maggioni
Pág. 605 - 614
The aim of this work is the definition of a pilot test procedure to carry on the system testing and validation tests with a locomotive engine aftertreatment pre-prototype called ENSPIRIT system, developed in the framework of the FP7 European Project Elim...
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Louis Cédric, Mathieu Goriaux, Patrick Tassel, Pascal Perret, ... Yao Liu
Pág. 3079 - 3088
Ultrafine particle, black carbon and NOx emissions from Diesel and gasoline passenger cars have been investigated in this work, as well as influences of aftertreatment device and driving conditions (the cold start, urban, rural and motorway conditions?) ...
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Tobias Ott, Christopher Onder and Lino Guzzella
In this paper we demonstrate the potential of combining electric hybridization with a dual-fuel natural gas-Diesel engine. We show that carbon dioxide emissions can be reduced to 43 gram per kilometer with a subcompact car on the New European Driving Cyc...
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