The influence of oil refilling strategy on the amount of oil in trunk piston marine diesel engine lubricating system

• Autorzy: Młynarczak A.
• Języki publikacji: EN

Abstrakty

EN

The issues connected with the amount of lube oil in engine oil system are real problems in marine diesel engines maintenance process. The amount of lube oil in circulation influences its quality and consequently the wear of lubricated parts. That amount still changes and is connected with lubricating oil refilling strategy. The results of simulation carried out for SULZER 8S20U and PIELSTICK 12PC2-5V engines allowed to determine the influence of lubricating oil refilling strategy on the amount of lube oil in circulation. Frequent topping-up at regular intervals can be arranged to maintain the sump working capacity at the chosen percentage of the design maximum (for example 90 per cent), while a significantly delayed topping-up might allow the working capacity to be reduced to as low as about 50 per cent of the maximum. Thus a significantly reduced lubricant amount may have a disadvantageous influence on engine elements wear (i.e. piston rings, cylinder liners) and consequently cause the growth of the engine overhaul costs, although in far perspective, it would be difficult to connect that fact with the amount of oil in circulation. On the other hand in small output trunk piston engines without sump tanks, delayed topping-up and operation with minimum oil level could give some economic and ecological advantages resulting from reduced oil consumption. But in marine conditions (rolling and trim changes) it would be very hazardous for the engine safety operation.

Słowa kluczowe

EN

marine diesel engine; lube oil; refilling strategy

• 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: 2011
• Tom: Vol. 18, No. 3
• Strony: 287--291
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Młynarczak A.

• Gdynia Maritime University, Department of Marine Power Plant Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone],

Bibliografia

• [1] Casale, P. G., The added value of good lubrication, World Cruise Industry Review 1991.
• [2] Casale, P. G., Davidson, D., Lane, G., Marine lubrication and the user connection, 20th International Congress On Combustion Engines, CIMAC, London 1993.
• [3] Drużinina, A. W., Ciguro, G. A., Akisljenie ugljewodorodow masjeł w usłowjach raboty dwigatjela. Chimija 1966.
• [4] Krzymień, P., Lube oil consumption’s impact on environment. Journal of KONES Powertrain and Transport, Vol. 17, No. 2, Warsaw 2010.
• [5] Merkisz, J., Studium zużycia oleju w czterosuwowych silnikach spalinowych, Politechnika Poznańska, Seria Rozprawy - Nr 212, Poznań 1989.
• [6] Młynarczak, A., Optymalizacja procesu użytkowania olejów obiegowych w silnikach okrętowych, Praca doktorska, Akademia Morska w Gdyni, 2006.
• [7] Młynarczak, A., Modelling of alkalinity changes in lubricating oils used in marine diesel engines, Journal of KONES Powertrain and Transport, Vol. 16, No. 2, Warsaw 2009.
• [8] Młynarczak, A., Modelling of mass concentration of solid impurities changes in lubricating oils used in trunk piston marine diesel engines during various lubricating oil refilling methods, Joint Proceedings, No. 21, August 2008.
• [9] Niepogodjew, A. W., Usłowia okisljenia masła w DWS, Chimija 1966.
• [10] Nikifor, O. A., Primjenjenie topliw i masjeł w dizjeljach, Trudy CNIDI, Maszinostrojenie, 1966.
• [11] PIELSTICK 12PC2-5V manual, S.E.M.T. PIELSTICK, 1979.
• [12] SULZER 8S20U manual, H. Cegielski, Poznań 2000.
• [13] Włodarski, J. K., Podstawy eksploatacji maszyn okrętowych. Tarcie i zużycie, Wydawnictwo Akademii Morskiej w Gdyni, 2006.