Load Analysis of Ship Generating Sets During the Maneuvers of the Vessel

Abstract

The specificity of ship power plants is connected with the vessel’s working mode and, above all, with operational safety. The synchronous generator powered by a combustion engine (diesel generator) is widely used in shipbuilding. During maneuvers and on “difficult” waters regions (sailing down the river, canal, straits, lakes, etc.), in order to ensure continuity of power supply, the parallel operation of generating sets is required. Safety reasons during maneuvers have impact on the parallel operation, rather than power demand. Therefore, auxiliary engines are often underloaded. These conditions cause that the fuel is not fully burned. It has an effect on operational problems of auxiliary engines and an increase in emissions of air pollutants. The article presents empirical researches of loads in ship generating sets in operational conditions requiring the parallel operation of sets for different types of ships. Moreover, it shows solutions that enable the limitation of unfavorable phenomenon of underloading of auxiliary engines so-called wet stacking.