6-stroke engine: thermodynamic modelling and design for testing

• Autorzy: Nimsiriwangso Atip , Barnes Paul , Doustdar Omid , Wyszynski Miroslaw L. , Mohyeldin Gasim Mohamed Maisara , Kowalski Miroslaw

Identyfikatory

DOI

10.2478/kones-2019-0037

• Języki publikacji: EN

Abstrakty

EN

In the study AVL BOOST™ is used to perform a thermodynamic simulation of a six-stroke engine, being built by a research team based in Saudi Arabia. The six-stroke cycle consists of a standard four-stroke Otto Cycle followed by a heat recovering steam expansion cycle. Water is injected into the hot combustion chamber towards the end of the Otto expansion stroke producing steam, which is used to perform work on a piston. This process produces power using waste heat and therefore increases the overall efficiency of the engine. The Robin EY28D engine, which is a single cylinder, four-stroke, gasoline engine was used for this simulation study. The engine was modelled and converted into six-stroke engine in AVL BOOST. The results show that six-stroke engine is more efficient than four-stroke engine. In six-stroke engine, the engine power is increased by 33.1% and brake specific fuel consumption (BSFC) is decreased by approximately 16%. Where emissions are concerned, Nitrogen Oxide (NOx) emission from six-stroke engine is reduced by 80%, while the Hydrocarbon (HC) emission increases by 85% compared with the original 4-stroke. Moreover, the most efficient camshaft was found and designed according to the most efficient valve profile for this engine, which is combination of 60CA° of valve duration and 10 mm of valve lifting.

Słowa kluczowe

EN

six-stroke engine; water injection; steam expansion; engine efficiency; dynamic gas model

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2019
• Tom: Vol. 26, No. 2
• Strony: 93--106
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Nimsiriwangso Atip

• University of Birmingham, Department of Mechanical Engineering Birmingham B15 2TT, UK tel.: [phone]

autor

Barnes Paul

• University of Birmingham, Department of Mechanical Engineering Birmingham B15 2TT, UK tel.: [phone]

autor

Doustdar Omid

• University of Birmingham, Department of Mechanical Engineering Birmingham B15 2TT, UK tel.: [phone]

autor

Wyszynski Miroslaw L.

• University of Birmingham, Department of Mechanical Engineering Birmingham B15 2TT, UK tel.: [phone]

autor

Mohyeldin Gasim Mohamed Maisara

• Prince Sattam bin Abdulaziz University (Saudi Arabia) Project 2017/01/6994

autor

Kowalski Miroslaw

• Air Force Institute of Technology. Ksiecia Boleslawa 6, 01-494 Warsaw, Poland tel.: [phone], fax: [phone]

Bibliografia

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• [3] Barnes, P., Six-stroke engine with water injection simulation, BEng Project, University of Birmingham, School of Engineering, 2018.
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).