A PLANT COMPRISING A TANK FOR STORING OF LIQUID NATURAL GAS (LNG) AS MARINE FUEL

摘要

A plant comprising a tank (7) for storing of liquid natural gas (LNG) as marine fuel for use in a propulsion engine or another consumer in a ship, and a heater (6) for vaporizing of LNG discharged from the tank (7) for such use. In order to cool tank filling piping (9) the plant comprises a closed heat exchanging loop (1) containing a non flammable gas in gaseous form as heat exchanging medium, a compressing device (2) for compressing the gas, a heat exchanger (3) for cooling of the compressed gas by use of LNG discharged from the tank, a pressure reduction device (4) for the gas and one or more heat exchangers (5a, 5b) for cooling of the tank filling piping (9). The loop (1) may also be used for cooling of LNG being filled into the tank (7) and for cooling inside the tank.