Abstract
The aim of the paper is to review the prospects for the development of research in the direction of ships on electric propulsion. The use of electric energy when driving on water is one of the ways to solve the problem of decarbonization, reducing pollution of water areas and damage to the ecosystems of water and adjacent territories. The main factors influencing the choice of an electric power plant for small boats, as well as the parameters that determine the energy efficiency of a vessel on electric propulsion, are considered. The existing restrictions that affect the spread of electric propulsion application on water are considered. The work uses surface modeling of the hull of a small vessel on electric propulsion, taking into account the needs of the vessel being developed, on the basis of which a draft design of a small vessel and its characteristics are formed. A parametric analysis of propulsion was performed, the calculation of the resistance curve along the length of the hull, which is necessary for further design of the propulsion unit, was carried out. One of the solutions to achieve the goals of ensuring the efficiency of a promising vessel should be the use of non-traditional propeller circuit designs that improve the quality of the workflow. The necessity for adaptation of the ship propellers to the operating modes, the features of the external speed characteristic of the electric machine, the importance of the operating modes consistency to the "hull-power plant-propulsion" system is shown. The work on the analytical review and analysis of the market of small-sized vessels on electric propulsion was carried out, on the basis of which the main trends for further research were identified, the requirements for a promising propulsion unit for the implementation of competitive electric propulsion in water areas were formed. The tasks set to ensure the energy efficiency of the vessel require an integrated approach and modeling of the operating modes of the "hullof a ship -power plant-propulsion" system.
Keywords
electric propulsion, water displacement boat, electric propulsion in shipbuilding, electric drive, propellers, advanced shipbuilding, loop propellers, ship hull, electrification, GHG emissions
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