ADVANTAGES AND DISADVANTAGES OF DIFFERENT TYPES OF MODERN MARINE PROPULSIONS

The main focus of this article is the development and use of different types of modern marine propulsions. The main goal is the diversity of energy sources and the reduce of environmental pollution, hoping that this will ensure future energy security supply. I propose to show the advantages and disadvantages of different marine propulsions. The main reason of this article is to try to show a modality for reducing ship pollution and the quantity of fuel used, increasing the energy efficiency, that means, to reduce the price of transportation and a method of saving money for the owners. As a result of my research I discovered that is more convenient to use nuclear propulsion comparing with other conventional types of propulsions. In recent years, a lot of money had been invested in the development and research of security measures for nuclear propulsions, but most of them for military navy of highly developed nations. Nuclear propulsion is particularly suited to ships that need to be at sea for long periods of time without refuelling. Fuel costs are initially paid together with the reactor, initially high, but over time costs are attenuated.