A method for determining a filling mass in a thermally insulated container for a cryogenically stored gas includes determining the filling mass using a known container volume and a calculated density of the gas content of the container. A temperature sensor is used for measuring a mixing temperature of liquid and gaseous phases, where the liquid phase is extracted via a first extraction supply line at the geodetically lowest point, and the gaseous phase is extracted via a second extraction supply line at the geodetically highest point. Downstream of the extraction points, after a convergence of the first and the second extraction supply line, the temperature sensor is placed where a complete and thorough mixing of the liquid and the gaseous phase of the gas from the first and second extraction supply line has already taken place.

A fuel storage and distribution system for a gas-fueled sea-going vessel includes a thermally insulated gas tank for storing liquefied gas fuel. A local heat transfer circuit is configured to extract heat from an external heat source circuit. As a part of said local heat transfer circuit a heating arrangement is configured to heat gas fuel for increasing pressure inside the gas tank. As a part of said local heat transfer circuit is a main gas evaporator for evaporating liquefied gas fuel drawn from the gas tank for delivery to an engine of the sea-going vessel.

A system and method for dispensing subcooled CO.sub.2 liquid includes a vacuum insulated bulk tank containing a supply of the liquid CO.sub.2. A pressure builder having an inlet in communication with a bottom portion of the bulk tank and an outlet in communication with a top portion of the bulk tank vaporizes liquid from the bulk tank and delivers the resulting gas to the top portion of the tank so as to pressurize it. A baffle is positioned within the bulk tank. Below the baffle, a refrigeration system is connected to the heat exchanger coil so that a refrigerant fluid is supplied to and received from the heat exchanger coil so that the liquid below the baffle is subcooled and the liquid above the baffle is stratified. A liquid fill line is in communication with the interior of the bulk tank via a fill line opening that is positioned above the baffle. A liquid feed line is in communication with a bottom portion of the interior of the bulk tank so that subcooled liquid may be dispensed.

A tank for storing liquefied gas, having a shell delimiting a storage volume extending in a main direction which is horizontal in the use configuration of the tank, the tank comprising multiple deflecting walls in the storage volume which extend in an offset manner in the main direction configured to force the fluid to perform at least one back-and-forth movement in the main direction as the fluid passes between the lower end and the upper end of the storage volume, wherein a plurality of these deflecting walls are located in the lower half of the storage volume.

A system for dispensing cryogenic liquid to a use point includes a bulk tank containing a supply of carbon dioxide or other cryogenic liquid and a pressure builder that is in communication with the tank via a pressure building valve. The pressure builder uses heat exchangers to vaporize a portion of the cryogenic liquid as needed to pressurize the bulk tank. The pressurized cryogenic liquid is dispensed through a dispensing line running from the bottom of the tank. A vent valve also vents vapor from the tank to control pressure. Operation of the vent and pressure building valves is automated by a controller that receives data from sensors. The controller determines the required saturation pressure for the tank and varies the tank pressure to match and provide a generally constant outlet pressure depending on conditions of the cryogenic liquid.

Embodiments of the present disclosure may include a partition for a fuel tank. The partition may include a sheet of material extending laterally within an interior mid-region of the fuel tank. The sheet may have a length and a width that are at least substantially equal to a length and a width of the mid-region of the fuel tank, and the sheet may be shaped to conform to an interior perimeter of the mid-region of the fuel tank. The partition may also be configured to substantially divide the fuel tank into an upper interior region located above the partition and a lower interior region located below the partition.

An LNG receiving structure (101) is provided with: a leader pipe (1) that is located below a receiving pipe (102) that penetrates a roof of an LNG tank, and extends as far as a bottom portion of the LNG tank; a hopper (2) that is provided at a top end of the leader pipe, and receives LNG expelled from the receiving pipe; a regulating component (3) that is provided inside the hopper, and regulates the flow of the LNG expelled from the receiving pipe such that this LNG flows down along an inside wall of the leader pipe; and a gas discharge port (4) that is provided in the hopper, and discharges to an outside of the hopper gas that has risen upwards from the leader pipe. By providing this LNG receiving structure, when a plurality of types of LNG that each have a different density are stored in the same LNG tank, it is possible to keep to a minimum any risk that rollover might occur.

In the case of a storage vessel of cryogenic gas or cryogenic compressed gas, particularly a cryo-pressure tank for a motor vehicle, having a storage volume for accommodating the stored gas, a mixing device is provided in the storage volume for mixing the gas stored in the storage volume.

The invention relates to a tank for storing cryogenic fluid, for example hydrogen or liquefied helium, having a storage shell with a cylindrical overall shape extending in a longitudinal direction that is horizontal when the tank is in the use configuration, the storage shell having, within it, a homogenization device for homogenizing the temperature of the fluid vertically in the tank, the homogenization device having at least one heat-transfer wall having a material with a coefficient of thermal conductivity of greater than 30 W.Math.m.sup.1.Math.K.sup.1, the transfer wall being arranged parallel to the longitudinal direction of the tank and extending vertically over 20 to 100% of the height of the storage shell and extending longitudinally over at least 50% of the length of the storage shell.

A device for storing and supplying cryogenic fluid, in particular liquefied hydrogen, comprising a tank delimiting a fluid-storage volume, the tank comprising a set of plates intended to limit or guide the movement of fluid in the tank, the set of plates comprising a plurality of first plates spaced vertically and extending in a horizontal direction when the tank is in a use position, characterized in that the set of plates further comprises one or more second plates extending in a vertical direction when the tank is in a use position, and connected to the first plates, the device further comprising a withdrawal circuit comprising a liquid-withdrawal pipe having a first end connected to a lower portion of the tank and a second end intended to be connected to a member for receiving the fluid, the liquid-withdrawal pipe comprising a pump, the device further comprising a system for pressurizing the tank that comprises a fluid-pressurizing pipe connecting the lower and upper parts of the tank and provided with a fluid-heating member configured to tap off some liquid, beat it and reinject it into the tank.