Interest in hybrid propulsion systems that can be used on small vessels has increased\nsignificantly in recent years. They can replace inefficient and environmentally burdensome\nconventional systems based on diesel engines. Hybrid propulsion has many advantages such as\nhigh energy efficiency and virtually noiseless operation, and therefore it fits well with the current\ntrends of â??green shippingâ? and â??zero emissionâ?. The aim of the research conducted was to examine\nand analyse the varied energy demand of a small inland ferry with electric propulsion depending\non the navigation strategy. The work included tests carried out on a model of the vessel.\nConventional resistance tests involving towing the model at a constant speed proved to be of no use\nfor the unit, which, during a short voyage, moves with variable speeds and manoeuvres. Therefore,\natypical and unique tests were performed to determine the energy consumption during the\nacceleration of the unit and the parameters of navigation with the propulsion turned off. The work\nresulted in calculated forecasts of energy consumption by the ship depending on the adopted\ncruising style and a proposal of the most energy-efficient way to cross the shipping route connecting\nthe two banks of the Motlawa River in the city of Gdansk.
Loading....