The article reveals the potential and ecological importance of using liquefied hydrogen on civil fleet vessels as fuel. The current requirements for the content of hazardous substances in exhaust gases, characteristics of the average energy complex of a civil fleet vessel are considered. The calculation of the required amount of liquefied hydrogen to provide a certain power capable of powering a number of ship consumers has been made. The calculation of the amount of liquefied hydrogen that can be obtained by using a sectional filter with a graphene membrane and a cryogenerator has been made. The conclusion is made about the high efficiency of hydrogen storage batteries that receive hydrogen from the exhaust gases of a ship's power plant
shipping, propulsion system, marine power plant, hydrogen, ecology
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