Abstract
A method for improving the operational characteristics of a marine diesel engine by applying fuel additives has been proposed. A marine medium-speed four-stroke cycle diesel 6L20 by Wartsila-Sulzer was used for this research. It was shown that the use of fuel additives improves fuel efficiency of a marine diesel, in particular reduces specific fuel oil consumption by 3.5 to 5.8 % subject to diesel load and additive concentration in the fuel. Improved environmental performance of the diesel – decrease by 1.4 … 4.3 % in the concentration of nitrogen oxides in exhaust gases, was also found. It was shown that the concentration of the additive has an optimal value, can be determined experimentally and depends on the characteristics of the fuel and the load on the diesel engine.
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