engleski

System dynamics simulation model of the marine diesel engine

Simulation has become an unavoidable tool for carrying out various systems tests thus saving time. It is safe, reliable and above all, economic. Nowadays, simulation of very complex non-linear dynamic systems is made possible by the use of increasingly sophisticated computers such is the case with the cooling system of marine diesel engine. The prevailing results have been obtained in simulation of the entire engine system by the investigations in this respect. Therefore, this paper provides a new approach to simulation of a separate part of diesel engine propulsion system, i.e. cooling system. The paper deals with the mathematical model of cooling system consisting of five subsystems shown in non-linear differential equations. By scientific method of system dynamic the system dynamic cooling model of the diesel engine has been marked out through the POWERSIM programme. The operation of the model has been tested and the investigations of some possible scenarios, two of which have been contained in this paper, have been carried out.

simulation; diesel engine propulsion; cooling system

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