O. Klyus, M. Szczepanek.
Simultaneous reduction of fuel consumption and toxic emission of exhaust gases of fishing fleet engines

Attempts to obtain technically optimal economic and ecological parameters in piston diesel engines face a number of difficulties, mainly concerning the arrangement of the engine working process. We can achieve lower fuel unit consumption, i.e., increased engine efficiency, by raising maximum temperatures of the cycle, which leads to increased toxic emissions of exhaust gases, mainly nitrogen oxides. Common Rail injection systems with electronic control of fuel injection characteristics are used in newly built engines, while exhaust components are equipped with catalytic reactors, solid particle filters and others. Still the simultaneous reduction of fuel consumption and level of toxic emissions remains a major problem. The same refers to engines currently operated in ships, whose construction does not leave much space for essential improvements in fuel, exhaust and other systems. The Maritime University of Szczecin conducts research on medium and high-speed self-ignition engines used in fishing boats and vessels which focuses on the use of preliminary fuel treatment directly in the injector body. Such treatment is possible in new design engines leaving factories as well as those in operation.

Keywords: Toxic emission, Fuel consumption, Diesel engines 

DOI: https://doi.org/10.54381/icp.2023.2.05
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