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The relationships between vessels and water environment in which they do exploitation tasks are presented in this paper. In conjunction with that fact that vessels are the biggest means of transport, they also have the biggest propulsion units having substantial influence on polluting the natural environment. Therefore an attempt of analysis whether replacing liquid hydrocarbon fuel with alternative fuels reduces degradation of the environment was made. For this purpose an analysis of alternative fuels, mainly bio...

In this paper relationships of vessels and the environment, in which exploitation tasks are carried out, were presented. It was shown how important is rational choice of propulsion unit to construct a vessel which should be provided with proper energy to do the tasks given. Vessels are the biggest means of transport, then they also have a profound influence on natural environment. That is why an attempt of analysis was made whether it is possible to replace hydrocarbon liquid fuels with alternative ones. For this ...