Cavitation Treatment of High-Viscosity Marine Fuels for Medium-Speed Diesel Engines

Sergii Victorovich Sagin,Valerii Grigorovich Solodovnikov

doi:10.5539/mas.v9n5p269

Abstract

The paper considers processes of treatment for fuels with high sulphur content, when applied in marine medium-speed diesel engines. The paper describes features of operating marine medium-speed diesel engine fuel systems with high-viscosity fuels. The paper offers an option for the cavitation fuel treatment to disrupt the sulphur-carbon bonds in the marine fuels. The authors developed a scheme of the experimental installation, which allows performing cavitation fuel treatment. The results of the analysis are provided in the paper, as well as the fuel cavitation treatment effect on sulphur wear of diesel engine cylinder and piston assembly parts (bushing and top piston ring) is analysed, as well as its operational parameters (maximum cylinder pressure, gases temperature in the exhaust manifold).

Highlights

1.1 Introduce the ProblemMarine internal combustion engines are the most common type of heat engines used in marine and river vessels
Compared with other types of power plants used to supply energy to the marine propulsion system, marine diesel engines are characterized by minimum fuel consumption per power unit and per path unit traversed by the ship
It shall be noted that the main marine medium-speed diesel engines are used on ships with average displacement, having restrictions on the engine and boiler room size; while they are used as subsidiary on all ships without exception

Summary

Introduction

1.1 Introduce the ProblemMarine internal combustion engines are the most common type of heat engines used in marine and river vessels. Marine internal combustion engines are the most common type of heat engines used in marine and river vessels. Compared with other types of power plants (gas turbine and steam turbine) used to supply energy to the marine propulsion system, marine diesel engines are characterized by minimum fuel consumption per power unit (kg/kW⋅hour) and per path unit traversed by the ship (kg/mile). The most widely used are medium-speed diesel engines, used to transmit power over either screw or electric generator (Gershanik C., 2008). It shall be noted that the main marine medium-speed diesel engines are used on ships with average displacement, having restrictions on the engine and boiler room size; while they are used as subsidiary (as a part to a ship's power plant) on all ships without exception

Methods

Results

Conclusion