Development of a diesel engine model for application in marine power systems

Cilj rada je bio modeliranje brodskog pogonskog sustava u OpenModelica softveru. Za kalibraciju su korišteni mjereni podaci dobiveni na probnom stolu i tokom probne vožnje. Primarni zadatak je bio razvoj i kalibracija pojedinih elemenata pogonskog sustava, kao što su turbopuhalo, cilindar, filtar zraka i slično. Cilj je bio dobiti kalibrirani model ispitivanog motora koji bi se mogao koristiti za poboljšavanje radnih parametara motora i simulaciju rada samog motora u realnom vremenu. Opisani su najvažniji parametri za opis rada motora i pomoćne opreme. Kod simuliranja rada motora, model izgaranja iznimno je bitan. Objašnjen je korišteni model izgaranja te su dane neke buduće smjernice gdje bi razvoj modela mogao ići. Svi rezultati dobiveni mjerenjima i simulacijama su detaljno analizirani i pojašnjeni su uzroci njihova ponašanja.The aim of the work was to model a marine power system in OpenModelica software. Measured data was obtained on the test bench and during the test drive and was used later for calibration. The primary task was the development and calibration of individual elements of the power system, such as a turbocharger, cylinder, air filter etc. Special attention is given to the modeling of the combustion inside cylinder in the simulation model. The aim was to obtain a calibrated model of the tested engine that could be used later to improve the operating parameters of the engine and simulate the operation of the engine in real time. The most important parameters for describing the operation of the engine and auxiliary equipment are described. When simulating engine operation, the combustion model is extremely important. The used combustion model is explained and there are some future guidelines how the model could be developed. All results obtained by measurements and simulations were analyzed in detail and explained