Abstract: There are many approaches towards diesel engine modelling. Their accuracy and complexity varies at a great extent. In this paper we developed zero dimensional model that will accurately describe the processes taking place in the multi-cylinder of turbo charged diesel engine. Application of programming software Matlab in given model will be used for computer simulation and calculation of engine parameters which are based in the concept of technology of engine downsizing. In paper are presented simulation results for the temperatures and pressures in the cylinder and manifolds, mass flow rates of gas exchange, heat transfer rate for engine speeds 1200 rpm and 1800 rpm as functions of crank angle for Cummins engine type N-14.
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