The closed-cycle model numerical analysis of the impact of crank mechanism design on engine efficiency

• Autorzy: Opaliński M. , Teodorczyk A. , Kalke J.

Identyfikatory

DOI

10.19206/CE-2017-125

• Języki publikacji: EN

Abstrakty

EN

The research presents a review and comparison of different engine constructions. Investigated engines included crankshaft engines, barrel engine, opposed-piston engines and theoretical models to present possible variations of piston motion curves. The work comprises also detailed description of a numerical piston engine model which was created to determine the impact of the cycle parameters including described different piston motion curves on the engine efficiency. Developed model was equipped with Wiebe function to reflect a heat release during combustion event and Woschini’s correlation to simulate heat transfer between the gas and engine components.Various scenarios of selected engine constructions and different working conditions have been simulated and compared. Based on the results it was possible to determine the impact of different piston motion curves on the engine cycle process and present potential efficiency benefits.

Słowa kluczowe

EN

piston motion; engine; simulation; efficiency; opposed

PL

ruch tłoka; silnik; symulacja; wydajność

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2017
• Tom: R. 56, nr 1
• Strony: 153--160
• Opis fizyczny: Bibliogr. 11 poz., wykr.

Twórcy

autor

Opaliński M.

• Faculty of Power and Aeronautical Engineering

autor

Teodorczyk A.

• Faculty of Power and Aeronautical Engineering

autor

Kalke J.

• Faculty of Power and Aeronautical Engineering

Bibliografia

• [1] PIRAULT, J-P., FLINT, M. Opposed piston engines: Evolution, use and future applications. SAE International. Warrendale, 2010, 7-15.
• [2] DZIERŻANOWSKI, P., ŁYŻWIŃSKI, M. Silniki tłokowe. WKŁ. Warszawa, 1981, 86-90.
• [3] JĘDRZEJOWSKI, J. Mechanika układów korbowych silników samochodowych. WKiŁ. Warszawa, 1979, 16-47.
• [4] RYCHTER, T. Analiza możliwości podwyższenia sprawności cieplnej silników tłokowych ZI. Wydawnictwo PW. Warszawa, 1986, 43-50.
• [5] RYCHTER, T., TEODORCZYK, A. VR/LE engine with a variable R/L during a single cycle. SAE Technical Paper 850206.1985.
• [6] HUO, M., HUANG, Y., HOFBAUER, P. Piston design impact on the scavengine and combustion in an opposedpiston, opposed-cylinder (OPOC) two-stroke engine. SAE Technical Paper 2015-01-1269. 2015.
• [7] HEROLD, R., WAHL, M. et al. Thermodynamic benefits of opposed-piston two-stroke engines. SAE Technical Paper 2011-01-2216. 2011.
• [8] KALKE J., OPALIŃSKI, M., SZCZECIŃSKI, M.. Opposed-piston engines: the future of internal combustion engines. PhD Interdisciplinary Journal, Gdańsk, 2014. 175-184.
• [9] www.cedesign.net/steam/coomber.htm
• [10] McBRIDE, B., ZEHE, M., GORDON, S., NASA Glenn coefficients for calculating thermodynamic properties of individual species NASA/TP – 2002-211556, 2003.
• [11] PUDLIK, W., Termodynamika. Wydawnictwo Politechniki Gdańskiej. Gdańsk, 2007, 168.