A computational study on the performance and emission parameters mapping of a ship propulsion system

Gerasimos Theotokatos, Vasileios Tzelepis

Research output: Contribution to journalArticle

35 Citations (Scopus)
587 Downloads (Pure)

Abstract

In the present article, the mapping of the performance and emission parameters of a merchant vessel propulsion system over the ship operating envelope was carried out by using a model capable of representing the ship propulsion system behaviour. The model was developed based on a modular approach and was implemented in the MATLAB/Simulink environment. The various parts of the propulsion engine as well as the shafting system, the propeller and ship hull were represented by separate submodels having the appropriate interface for exchanging the required variables to each other. The output of the model includes the performance and emission parameters of the engine as well as the operating parameters of the propeller and ship. Initially, the propulsion engine operation under steady state conditions was simulated and the predicted engine performance parameters results were validated. Then, simulations of the ship propulsion system operating points at various resistance curves were performed. Based on the derived results, the mapping of the ship propulsion system performance and emissions parameters was presented and their variation throughout the ship operating envelope was discussed. Finally, an example of using the derived results in order to minimise the fuel consumption and CO2 emissions for a typical ship route is presented and discussed.
Original languageEnglish
Pages (from-to)58-76
Number of pages19
JournalProceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment
Volume229
Issue number1
Early online date12 Sep 2013
DOIs
Publication statusPublished - Feb 2015

Keywords

  • propulsion system modelling
  • two-stroke marine diesel engine
  • performance and emissions parameters mapping
  • mean value engine modelling

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