The invention relates to a method for detection of a leak from a tank for liquid gas, said tank comprising a membrane surrounding the liquid gas, the membrane being surrounded by an insulation space which separates the membrane from a wall, the insulation space being filled an inert gas which is injected and extracted by at least one duct. The detection method comprises the following steps: determining 921 a first variation of mass of inert gas ?M1 between two moments by measuring the gas added and removed by the duct; calculating 922 a second variation of mass of inert gas ?M2 corresponding to a difference between two masses of inert gas measured in the insulation space; and comparing 931 the first variation with the second variation, and triggering an alarm if a difference E1 between the first variation and the second variation of mass of inert gas is greater than a first threshold S1.

The disclosure relates to a tank for storing volatile gas under pressure and a structure comprising the tank. The tank has a wall formed of a filament wound carbon fibre reinforced polymer (CFRP). The CFRP may have a graphene nanomaterial filler dispersed in the polymer adhesive matrix. The structure includes a frame for bearing static and dynamic forces from internal and external loads, the frame including the tank, the tank being an active load bearing structural element configured as a stressed member in the frame such that, in the structure in use, the tank bears static and dynamic forces from internal and external loads. One or more of: the filament winding pattern of the carbon fibre, the wall thickness, the wall shape, or the material properties of the polymer matrix including the dispersed graphene; is configured such that the tank has mechanical properties required by the design of the structure.

A vessel includes a body having an interior surface that defines an interior space. The vessel further includes a flexible membrane located within the interior space of the vessel. The interior space includes a first chamber at least partially defined by the flexible membrane, and a second chamber at least partially defined by the flexible membrane and a portion of the interior surface of the body. The vessel includes a pressure relief device configured to vent contents of the second chamber to an exterior of the body when the second chamber reaches a first predefined pressure. The flexible membrane is configured to tear or puncture when the first chamber reaches a second predefined pressure that is less than or equal to the first predefined pressure to prevent dangerously high pressures within the first chamber.

A vessel includes a body that defines an interior space. The body includes a first metal surface, a second metal surface, and a non-metallic material crimped between the first metal surface and the second metal surface at a joint. The vessel further includes a pressure relief device coupled to the body. The pressure relief device is configured to vent contents of the vessel to an exterior of the body. Upon exposure of the vessel to a temperature for a period of time, the second metal surface is configured to expand or bend to create a pressure relief route from the interior space to the pressure relief device, between the first metal surface and the second metal surface, and/or the non-metallic material is configured to melt to create the pressure relief route.

The present invention relates to a pressure tank arrangement for storing and discharging compressed liquid fuels and to a method for producing a pressure tank arrangement of this type. Here, force transmission elements of the pressure tank arrangement are arranged in such a way that they utilize the available installation space for pressure tank arrangements of this type in an optimum manner.

An end of a shell forming a high-pressure container is opened to form an opening. A cap is disposed partially inside the opening to close the opening. A shell reinforcing layer having a first reinforcing layer that is made of a first fiber-reinforced resin having a fiber direction oriented in a circumferential direction, and a second reinforcing layer that is integrated with the first reinforcing layer and made of a second fiber-reinforced resin having a fiber direction oriented in an axial direction, is wrapped in layers around an outer circumferential surface of the shell. The second reinforcing layer is placed over a region of the first reinforcing layer.

A method for managing boil-off from an LNG tank located on board of an aircraft. The method, including removing the boil-off from the aircraft and disposing of the removed boil-off from the aircraft and an equipment assembly for use with an aircraft having an on-board LNG tank with a vent system having an outlet coupling, including a removal system configured to remove boil-off from the aircraft and a disposal system configured to dispose of the boil-off.

A receiving apparatus for receiving a gas cartridge for a carbonation machine, the receiving apparatus includes a pressure chamber in which an overpressure is generated; with aid of the overpressure generated in the pressure chamber: i) a seal means is configured to be pressed onto the gas cartridge; and/or ii) the gas cartridge is configured to be fastened to the carbonation machine; the receiving apparatus includes: a pressure transmission means to press the seal means onto the gas cartridge by way of the overpressure generated in the pressure chamber during a carbonation operation; and a spring device configured to exert a force on the pressure transmission means.

Liquid storage systems for space vehicles include at least one storage tank including a tank inlet, a tank outlet, and a plurality of liquid storage compartments coupled to each other in series between the tank inlet and the tank outlet. Each liquid storage compartment includes an end plate including a porous outlet at an end of the liquid storage compartment adjacent to another liquid storage compartment. Propulsion systems for space vehicles include at least one such liquid storage tank. Methods of providing a liquid propellant to a thruster of a space vehicle include withdrawing a liquid propellant from a first compartment within a tank and flowing the liquid propellant from a second compartment into the first compartment through a porous element associated with an end plate separating the first compartment from the second compartment.

A novel and improved inventive valve with a regulating function is provided that is capable of filling to higher fill pressures than previously attainable with conventional C-10 on-off valves. The valve contains a single flow passageway by which gas dispenses and enters the valve. A fill adapter is specially configured to engage the valve to allow filling at the higher pressures along the single flow passageway. The structure of the valve allows greater utilization of cylinder capacity; simplifies filling and dispensing with the single flow passageway; and allows for regulating gas pressure during delivery without increasing the overall size of the cylinder package.