Modeling and Simulating Working Processes of the Main Turbocharged Marine Diesel Engine

The modern marine diesel (MDE) always is designed to work together with a turbocharger (TC). The paper presents an integral model (IM) and simulation of the working processes of a complex of the MDE and TC. The MDE as a main engine (ME) drives a propeller on the motor vessel (MV). The IM was received on the basis of the integration of the theoretical and experimental researches to improve the model accuracy. The simulation algorithm was programmed in MatLab/Simulink environment and verified to 8MAK43 engine installed on the PhucHung MV. The received simulation was conducted to study the influences of nozzle cross-section to the engine performances and to optimize the nozzle cross-section in accordance with the deteriorated states of the MDE–TC complex.