engleski

Operation of Marine Diesel Engine Based on Differential Equations

The purpose of this paper is to present the efficiency of the application of the system dynamics simulation modelling in investigating the behaviour dynamics of the diesel engine complex system. The marine diesel engine is defined by a set of non-linear differential equations, i.e. by a continuous simulation model of a higher order and the so-called equations of state. At the same time, the simulation model is discrete as it strictly satisfies the chosen value of the fundamental integration time step DT. The paper presents a mathematical model of the system consisting of a marine diesel engine model, which forms the basis for designing a system dynamic qualitative model (mental-verbal, structural and schematic model) and a quantitative model (system dynamic mathematical and information simulation model). A scenario of mixed propulsion states has been presented. Parameters obtained with the aid of the hardware simulator Kongsberg ERS-L11 MAN B&W-5L90MC-VLCC Version MC90-IV have been used in conducting the simulation.

simulation; system dynamics; modelling; diesel engine; simulator; heuristic optimisation

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