The present invention relates to a method and an apparatus for storing liquefied gas in at least one insulated container (1) while withdrawing evaporated gas from one or more of the at least one container (1), wherein at least a part of the evaporated gas is supplied to a recondenser (11) and wherein liquefied gas is withdrawn from one or more of the at least one container (1) and at least in part supplied to the recondenser (11) for recondensing the evaporated gas supplied to the recondenser (11) such that recondensed gas is obtained at a recondenser outlet, wherein before supplying the liquefied gas to the recondenser (11), the liquefied gas is subcooled by passing it through a refrigeration unit (8, 9), at least a part of the subcooled liquefied gas being supplied to the recondenser (11), and wherein at least a part of the recondensed gas obtained at the outlet of the recondenser (11) is reintroduced into one or more of the at least one container (1).

A hydrostatically compensated compressed air energy storage system may include an accumulator disposed underground, a gas compressor/expander subsystem in fluid communication with the accumulator interior via an air flow path; a compensation liquid reservoir spaced apart from the accumulator and in fluid communication with the layer of compensation liquid within the accumulator via a compensation liquid flow path; and a first construction shaft extending from the surface of the ground to the accumulator and being sized and configured to i) accommodate the passage of a construction apparatus therethrough when the hydrostatically compensated compressed air energy storage system is being constructed, and ii) to provide at least a portion of one of the air flow path and the compensation liquid flow path when the hydrostatically compensated compressed air energy storage system is in use.

Vessel assemblies, heat transfer units for prefabricated vessels, and methods for heat transfer prefabricated vessel are provided. A heat transfer unit includes a central rod, and a plurality of peripheral rods surrounding the central rod and connected to the central rod. The plurality of peripheral rods are movable between a first collapsed position and a second bowed position, wherein in the second bowed position a midpoint of each of the plurality of peripheral rods is spaced from the central rod relative to in the first position. The heat transfer unit further includes a heat transfer element connected to one of the plurality of peripheral rods.

A fuel system for a liquefied gas drive system. The fuel system has a liquefied gas tank and a cooling system for the vaporized content of liquefied gas, which comprises a liquid nitrogen tank, a nitrogen pump, a heat exchanger, and a nitrogen cooler, which are connected to each other in a pipework circuit. The heat exchanger is arranged in the interior of the liquefied gas tank. Also disclosed are a vehicle, a plant and a machine, in each case with a fuel system, and a method for cooling the vaporized content of liquefied gas of a liquefied gas drive system.

A system is described wherein a cryogenic liquid transport fluid is used as in thermal communication with a volatile gas as a second cryogenic liquid. The volatile gas in the liquid state enables transport of additional volatile substances that cannot be transported in the liquid state employing only the cryogenic liquid. The thermal communication between cryogenic liquids is a thermal cascade.

Gas pressure actuated fill termination valves for cryogenic liquid storage tanks and storage tanks containing the same.

A cryogenic delivery tank includes a vessel having inner and outer shells and an interior that may contain a cryogenic liquid with a headspace above. A transfer pipe passes through the interior of the vessel and includes a head space coil positioned within an upper portion of the interior and a liquid side coil positioned in the lower portion of the interior. The transfer pipe has a first port adjacent to the head space coil and a second port adjacent to the liquid side coil. The first and second ports of the transfer pipe are configured to be removably attached to a second tank.

Vessel assemblies, heat transfer units for prefabricated vessels, and methods for heat transfer prefabricated vessel are provided. A heat transfer unit includes a central rod, and a plurality of peripheral rods surrounding the central rod and connected to the central rod. The plurality of peripheral rods are movable between a first collapsed position and a second bowed position, wherein in the second bowed position a midpoint of each of the plurality of peripheral rods is spaced from the central rod relative to in the first position. The heat transfer unit further includes a heat transfer element connected to one of the plurality of peripheral rods.

According to one or more aspects, a hydrogen fueling station is provided and includes one or more hydrogen fuel storage tanks, a pressure control device positioned downstream from the hydrogen fuel storage tanks, a dispenser positioned downstream from the pressure control device, and a heat load reduction line which forms a circulation loops from a first point downstream of the pressure control device to one or more of the hydrogen fuel storage tanks.

A pressure buildup system of a cryogenic fluid storage tank is disclosed. A pressure buildup system of a cryogenic fluid storage tank comprises: a storage tank for storing cryogenic fluid; a discharge line communicating with the lower part of the storage tank so that the stored fluid flows therein; a first line branching off from the discharge line, and having one end connected to the upper part of the storage tank so that gravity pressure buildup is performed therein; a second line branching off from the discharge line, and having one end connected to an object to which the fluid is supplied; and a third line having one end branching off from a first point of the second line.