System og fremgangsmåte for kondisjonering av LNG i drivstoffsystem

The present invention relates to a system for conditioning LNG in a fuel system, the system also supplying natural gas to at least one consumer, where the system comprises at least one LNG tank, a pump and a pressure build-up unit. The pump is in fluid communication with the at least one LNG tank through an outlet conduit, a pump inlet conduit and at least one pump return conduit, while the pressure build-up unit is in fluid communication with the at least one LNG tank through at least one inlet conduit, the outlet conduit, gravity feed conduit and conduit. Furthermore, the pump and the pressure build-up unit are in fluid communication through a pump outlet conduit and a pressure build-up conduit. The present invention also relates to a method for conditioning LNG in a fuel system, the method also supplying natural gas, the method comprising transferring an amount of LNG from the at least one LNG tank to a pump when a pressure in the at least one LNG tank fall below a certain pressure, using the pump to raise the pressure of the LNG, transferring wholly or in part the raised pressure LNG to a pressure build-up unit to heat the LNG and transferring the fluid to the at least one LNG tank.