This paper presents a detailed mathematical model of a Turbocharged Diesel Engine 8M 453C MAK of cutter suction
dredger mashour and its governor set in the Suez Canal authority. The developed mathematical model is then employed
to investigate the system performances both in steady state and transient. The simulation results are checked and the
model is verified using experimental data in case of steady state condition. Simulation runs in order to examine the
diesel engine behavior in a variety of operating conditions. Various control scenarios for improved engine operation and
efficient running closer to MCR under varies load conditions are investigated. The analysis of the results is established
to show features of model and is defined safe operating conditions, in particular those of the turbocharging system. The
analyses and the model can be used in finding better design characteristics and in expert operating systems which can
analyse different conditions of the system and offer optimum operating conditions in order to prevent unwanted
occurrences. By the aid of MATLAB/SIMULINK, the model is running out and the components library has created.
The main conclusive points from the simulation model that it shows that the main reason for exhaust gas temperature
increase is the reduction of air mass flow rate through the engine. Also it is found that air cooler, exhaust port and
exhaust duct and turbine inlet flow area reduction affect on the exhaust gas temperature level