A mobile CO2 filling system selectively fills onsite CO2 storage and dispensing systems with CO2. The system includes a mobile platform; a tank holding liquid CO2 mounted on the mobile platform; a flexible dispensing hose coupled to the tank and configured to be selectively coupled to the filling inlet of an onsite CO2 storage and dispensing system; A pump selectively coupled to the tank; and a controller for controlling the filling of an onsite CO2 storage and dispensing systems with CO2 from the tank, wherein the controller is selectively designated by the user to operate in at least one pump assisted filling state and at least one gravity feed filling state.

Methods, apparatus, systems, and articles of manufacture are disclosed for managing a hydrogen storage and distribution system. An example apparatus disclosed herein includes an apparatus comprising memory and one or more processors to execute instructions to detect, via hydrogen concentration data, an elevated hydrogen concentration at a hydrogen storage system, determine a mass flow rate of a leak associated with the elevated hydrogen concentration based on the hydrogen concentration data and a location of a sensor associated with the hydrogen concentration data, and mitigate the leak by sending a signal to one or more controllable features of the hydrogen storage system based on the determined mass flow rate.

The invention relates to a method and to a device for determining an amount of gaseous fuel, which during a refueling process at a gas station has been transferred into a storage tank via a gas pump (3) and a filling hose (4) connected thereto, wherein in the gas pump (3) of the gas station, a flow meter (F) is provided, which during the filling of the storage tank detects the amount of fuel dispensed. Once the filling is completed, the filling hose (4) is depressurized, and the amount of fuel, which has not been transferred into the storage tank due to the depressurization, is detected, and this amount is subtracted from the amount detected by the flow meter (F).

A fuel cell power-supply management device and a fuel cell power-supply management method enabling efficient recovery and utilization of boil-off gas. The fuel cell power-supply management device includes: a boil-off gas accumulation amount recognition unit that recognizes an accumulation amount of the boil-off gas in a boil-off gas accumulation unit; a demand status recognition unit that recognizes a demand status for each use of the boil-off gas; a boil-off gas recovery timing determination unit that determines a recovery timing of the boil-off gas accumulated in the boil-off gas accumulation unit, based on an accumulation amount of the boil-off gas recognized by the boil-off gas accumulation amount recognition unit or a demand status of the boil-off gas recognized by the demand status recognition unit; and a boil-off gas utilization processing arrangement unit that arranges utilization processing of the boil-off gas recovered from the boil-off gas accumulation unit at the recovery timing.

Disclosed is a device for storing and supplying cryogenic fluid, in particular an on-board device for storing and supplying liquefied hydrogen, which device comprises a cryogenic storage tank for storing liquefied fluid, a bleed-off circuit, and a system for pressurizing the tank comprising a pressurizing duct having two ends respectively connected to the upper and lower portions of the tank, a vaporizing heat exchanger and a set of one or more valves configured so as to allow liquid to be bled from the tank, to be heated in the heat exchanger and to be fed back into the tank; the system for pressurizing the tank being configured so as to bleed off a predetermined volume of fluid from the tank, to store and to isolate this volume in the vaporizing heat exchanger until the volume of fluid reaches predetermined temperature and/or pressure conditions prior to reinjecting the volume of fluid into the tank; the pressurizing duct comprising a member for limiting the flow rate and/or the pressure of the volume of reinjected fluid.

An in-stock compressed gas delivery assembly to deliver gas to an airsoft gun, including a cartridge receiving portion to receive at least a portion of a compressed fluid cartridge, a locking cap to secure the compressed fluid cartridge in the gas delivery assembly, a puncture pin assembly to puncture a nozzle of the compressed fluid cartridge when the locking cap is closed over the cartridge, a regulator to regulate a volume of gas passing from the gas delivery assembly, and a plurality of expansion chambers configured to form a tortuous path, between the cartridge and the regulator, to expand liquid from the compressed fluid cartridge to gas, and a buffer tube having a first end configured to be coupled to the airsoft gun; and a second end configured to receive the gas delivery assembly such that the buffer tube houses at least a portion of the gas delivery assembly.

The design and structure of a regulated digital gas dispense apparatus is exhibited in this disclosure. The MEMS mass flow meter embedded with a Bluetooth communication device and powered by a battery pack is designed to replace the mechanical low pressure gauge in a conventional gas dispense regulator such that the dispensed gas flowrate as well as totalized dispensed gas volume in each session or in consequent sessions can be continuously and precisely registered. The measured data are further relayed to local users via the local display or physical data port as well as via a paired smart device running a customized APP that can further relay the data to a designated cloud for cloud data processing, and the data can be streamed reversely. This disclosure shall assist and realize the ultimate optimized management for the users, distributors and/or gas manufacturers in the gas dispensing industry.

A liquefied gas unloading and deep evacuation system may more quickly, more efficiently and more completely unload liquefied gases from transport tanks, such as rail cars, into stationary storage tanks or into truck tanks. The system may utilize a two stage compressor, an electric motor, a variable frequency drive, a four way valve, a three way valve, a two way valve, a programmable logic controller based control system and pressure and temperature transmitters. The valving enables deep evacuation of the transport or supply tank to more completely empty the transport tank. The programmable logic controller and variable speed drive may be used to variably control the speed of the two stage compressor so that the system may be running as fast as possible during changes in ambient temperature and/or different stages of offloading the liquefied gases without exceeding the compressor's horsepower limit.

The invention relates to a method (300) of estimation of a probability of damage caused by sloshing of a liquid load during an operation to transfer said liquid load from a first floating structure (1) to a second floating structure (40), the first floating structure (1) and the second floating structure (40) being associated with one another during said transfer operation so that the first floating structure (1) and the second floating structure (40) are oriented with a common bearing (99). The method includes steps (307) of estimating a probability of damage to at least one tank of at least one of said first and second floating structures (1, 40) and (308) of supplying information to a user as a function of the probability of damage estimated in this way.

The design and structure of a regulated digital dispense apparatus is exhibited in this disclosure. The MEMS mass flow meter embedded with a Bluetooth communication device and powered by a battery pack is designed to replace the mechanical low pressure gauge in a conventional gas dispense regulator such that the dispensed gas flowrate as well as totalized dispensed gas volume in each session or in consequent sessions can be continuously and precisely registered. The measured data are further relayed to local users via the local display or physical data port as well as via a paired smart device running a customized APP that can further relay the data to a designated cloud for cloud data processing, and the data can be streamed reversely. This disclosure shall assist and realize the ultimate optimized management for the users, distributors and/or gas manufacturers in the gas dispensing industry.