An underground storage tank maintenance system includes a system of monitors to determine pressure and humidity in the system. Inert gas may be supplied into the ullage of the tank. The inert gas may first pass through an interstitial space as between the primary storage and secondary containment, and then passed into ullage to capture contaminants on the way out of the vent to atmosphere. The system and method prevent hydrocarbons exiting to atmosphere. Humidity sensors may be set along vent to determine water contamination and trigger drying cycles. Pressure readings help identify system leaks.

A device for transferring a fluid from a supply tank to a receiver tank includes at least one duct for charging the receiver tank with liquid and at least one duct for return of the gas. The gas return duct is configured to transfer the gas contained in the receiver tank at a pressure close to or significantly different from the pressure of the supply tank.

The present invention relates to a computer-implemented method and system for computing a transition parameter of a liquefied gas storage medium, the storage medium having at least one sealed and unrefrigerated tank, the transition parameter characterizing an evolution of a two-phase mixture contained in the sealed and unrefrigerated tank between an initial state and a final state, the two-phase mixture including a liquid phase and a vapour phase, the transition parameter may be a duration of the transition, a liquid bleeding rate or a vapour bleeding rate.

The invention relates to an indoor safety device for a liquefied fuel gas system, the system comprising a storage device storing liquefied fuel gas; a vent member arranged in fluid communication with the gas inside the storage device; and a safety valve arranged to evacuate gas when the pressure inside the storage device exceeds a predetermined first value, the safety device comprising: a vent coupling; a pressure relief valve arranged downstream of the vent coupling; and a conduit for conveying gas, adapted to be connected to the pressure relief valve, the safety device being removably connected to the system by connecting the vent coupling to the vent member, wherein the pressure relief valve is configured to release gas when the pressure inside the storage device exceeds a predetermined second value, lower than the first value.

A storage system for storing a cryogenic medium, in particular, for storing hydrogen. The storage system includes storage container for receiving the cryogenic medium, at least one pipe projecting from outside the storage container into the storage container, and a shut-off valve in fluidic communication with the at least one pipe. The at least one pipe is closed at an end thereof facing away from the storage container and is open at another end thereof located in the storage container. The shut-off valve is moveable between an open operating state in which an inner space of the at least one pipe is in fluidic communication with an inner space of the storage container, and a closed operating state in which the inner space of the at least pipe is not in fluidic communication with the inner space of the storage container.

A system for a fuel cell vehicle includes a providing fuel cell fuel port, a fuel cell fuel storage tank, a fuel cell fuel flowmeter, and a pressure regulator. The fuel cell fuel storage tank is fluidically coupled to the providing fuel cell fuel port. The fuel cell fuel flowmeter is coupled between the fuel cell fuel port and the fuel cell fuel storage tank and is configured to measure flow of fuel cell fuel from the fuel cell fuel storage tank to the providing fuel cell fuel port. The pressure regulator is coupled between the fuel cell fuel flowmeter and the fuel cell fuel storage tank and is configured to control pressure of fuel cell fuel flowing from the fuel cell fuel storage tank to the providing fuel cell fuel port.

Methods of, and control systems for, operating modular, liquid natural gas (LNG) manifold apparatuses, crossover systems for such modular manifold apparatuses, and systems including one or more of the modular manifold apparatuses and a plurality of ISO tank containers. The modular manifold apparatus includes an ISO container (e.g., an open-frame ISO container) with a plurality of container connection sections or bays, a liquid system, and a vent system, where each of the liquid and vent systems includes a header and a plurality of connection lines configured to be coupled to the respective liquid and vent connections of LNG containers adjacent the modular manifold apparatus.

Modular, liquid natural gas (LNG) manifold apparatuses, crossover systems for such modular manifold apparatuses, and systems including one or more of the modular manifold apparatuses and a plurality of ISO tank containers. The modular manifold apparatus includes an ISO container (e.g., an open-frame ISO container) with a plurality of container connection sections or bays, a liquid system, and a vent system, where each of the liquid and vent systems includes a header and a plurality of connection lines configured to be coupled to the respective liquid and vent connections of LNG containers adjacent the modular manifold apparatus.

A filling apparatus that does not significantly reduce a required pressure immediately after a start of hydrogen filling, and can reliably fill fuel cell vehicles and the like. The filling apparatus (100) includes a control unit (10), and the control unit (10) has a function of boosting pressure required from a hydrogen filling apparatus (100) to a rear facility (200) until initial pressure measurement is completed. The control unit (10) may have a function of determining whether or not communication filling is established, and when communication filling is established, setting a pressure higher than an internal pressure of a tank received from a vehicle side by a predetermined pressure (for example, 5 MPa) as a pressure required for the rear facility (200) at an initial stage of filling.

The invention relates to a device (10) for supplying a fuel consumer (1) of a vehicle (20) with a gaseous fuel. The device (10) comprises multiple pressure accumulators(2) for storing and providing pressurised fuel, as well as a discharge device (3), which fluidically connects the multiple pressure accumulators (2) with the fuel consumer (1). In order to advantageously allow for a utilisation of a temperature change occurring during a fuel discharge, preferably a discharge cold temperature released during the discharge of fuel, according to the invention, the discharge device (3) is thermally coupled to a coolant circuit (4) of the vehicle (20). The invention also relates to a vehicle (20) comprising a device (10) of this type.