engleski

ANALYSIS OF THE EFFECTS OF LOW-SULFUR FUELS ON THE CYLINDER LINER LUBRICATION IN THE MARINE LOW-SPEED TWO-STROKE DIESEL ENGINE

The purpose of this paper is to analyze and describe the problems occurring when using low-sulfur fuel oils in the marine low-speed two-stroke diesel engine operation, as well as the measures taken to prevent damage to the individual engine components. The paper discusses the effects of low-sulfur fuels on marine diesel engine operation and examines the effects of low-sulfur fuels on the cylinder liner lubrication in the marine slow-speed two-stroke diesel engine and the differences in performance between common cylinder oils having the base number BN70 and the BN40 oils having the low BN prepared for operation with low-sulfur fuels, according to [2], [8]. Requirements for reducing SOx emissions from the ship exhaust systems in certain areas of navigation have resulted in using low-sulfur fuel oils in diesel engine operation. The use of heavy fuel oil HFO with high sulfur content has become unacceptable after the global introduction of Annex VI of the International Convention for the Prevention of Pollution from Ships MARPOL 73/78, the designation of some marine areas as particularly sensitive areas Emission Control Areas - ECA, and the implementation of monitoring the exhaust emissions from ships in ECAs. Maximum allowed sulfur content in fuel in European ECAs amounts to 0.1 % for ships in ports and all inland waterways across the European Union, whereas California Air Resources Board CARB applies the regulation limiting the sulfur content in fuel to 0.1 % within 24 nautical miles of the California's coastline, according to [2], [3].

low-sulfur fuel, lubrication, cylinder liner, lubricator, viscosity

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