A nickel-containing steel for low temperature service having a determined chemical composition of a Ni content of from 5.0 to 8.0%, in which the volume fraction of retained austenite in a region of 1.5 mm from a surface in the thickness direction is from 3.0 to 20.0% by volume, and the ratio of the hardness in a region of 1.0 mm from a surface in the thickness direction to the hardness in a region of ¼ of the thickness from a surface in the thickness direction is 1.1 or less, and a low-temperature tank using the nickel-containing steel for low temperature service.

Systems and methods for dockside regasification of liquefied natural gas (LNG) are described herein. The methods include providing LNG from a LNG carrier to a regasification vessel. The LNG may be regasified on the regasification vessel. The regasified natural gas may be discharged with a high pressure arm to a dock and delivered onshore. The regasification vessel may be moored to the dock. The LNG carrier may be moored to the regasification vessel or the dock.

A method of determining an optimum value of at least one first parameter of execution of a process for cooling an internal space of a tank, including testing a plurality of different values of the first parameter, each phase of testing one of the values of the first parameter including cooling the internal space of the tank, the cooling power P.sub.f or the setpoint final temperature T.sub.c being representative of the tested value of the first parameter. The steps include loading liquefied gas into the internal space of the tank after cooling, measuring a variable P1 representative of the pressure inside the thermal insulation barrier and comparing it to at least one particular threshold, and detecting a fault if the variable P1 crosses the at least one particular threshold, and choosing, among the plurality of values tested, the optimum value of the first parameter during the corresponding test phase.

A liquefied natural gas (LNG) bunkering equipment test and evaluation system is provided. The system includes a storage tank module configured to store a liquefied natural gas, a supply module for connecting the storage tank module and the bunkering module, a bunkering module configured to perform bunkering by being supplied with the liquefied natural gas, a simulation module provided at a part under the bunkering module and the supply module and the simulation module is configured to simulate a maritime situation by giving a fluidity to the bunkering module and the supply module, and a controller configured to control a driving of the simulation module, thereby simulating various situations of sea areas by giving fluidity to the storage tank module and the bunkering module.

A system and method of operation is described wherein a cryogenic liquid transport fluid is used as in a thermal cascade with at least one volatile gas. The volatile gas in the liquid state enables transport thereof. In operating this system, the liquid volatile gas is maintained at a temperature below its boiling point, below its flash point, but above its freezing point.

A system and a method for filling a tank are provided. The tank filling system includes tanks that are filled with predetermined fluid and a manifold that is coupled to each of the plurality of tanks in a communication manner. A first flow passage is connected to a first inlet of the manifold to supply the fluid to be filled into the plurality of tanks to the manifold and a second flow passage is connected to a second inlet of the manifold spaced apart from the first inlet of the manifold by a predetermined distance to supply the fluid to be filled into the plurality of tanks to the manifold. A controller opens and closes the first flow passage and the second flow passage.

A gas transport vessel having a hull and a tank longitudinally received in the hull and method of constructing the tank within the hull. The vessel is designed to transport fluids, such as hydrogen or other gases and liquids. The tank has a plurality of layers that are unconnected to adjacent layers. The tank contacts the vessel at a top and bottom. The top connection, for example a connection to deck structure, supports the tank for preventing sagging. The tank may be substantially the length of the ship and located between a forward and a rearward bulkhead. Two tanks may placed adjacent one another separated by a longitudinal bulkhead. Each layer has a forward and rearward end cap constructed of multiple frusto-conical sections. A space is provided on sides of the tank to permit expansion. The tank is integral with ship structure, thereby providing additional strength to the vessel.

A gas supply marine vessel and a refueling facility are described. The gas supply marine vessel includes a hull with an upper deck having an elongated cargo cavity formed therein. Gas interface modules are disposed in the cavity and extend between hull sides, each module having a plurality of fuel vessel docking stations. A plurality of stacked fuel container assemblies are fluidically coupled to the docking stations. A gantry, is movable along the length of the cavity, straddles the cargo cavity between hull sides. An articulating crane is mounted on the gantry and it utilized to move fuel container assemblies to a fuel container depression formed in the deck of a floating refueling facility. The floating refueling facility includes a concave side to facilitate mooring adjacent a shoreline, the concave side forming angled extensions at corners of the deck with a linkspan extending from each of the angled extensions.

A fuel delivery and storage system is provided. A further aspect employs a remote central controller and/or software instructions which receive sensor data from stationary and bulk fuel storage tanks, portable distribution tanks, and end use tanks. Another aspect of the present system senses and transmits tank or hydrogen fuel characteristics including temperature, pressure, filled volume, contaminants, refilling cycle life and environmental hazards. Still another aspect includes a group of hydrogen fuel tanks which is pre-assembled with sensor, valve, microprocessor and transmitter components, at least some of which are within an insulator.

A device for storing cryogenic fluid including a sealed internal shell delimiting the storage volume for the cryogenic fluid, a thermal insulation layer disposed around the internal shell, and a sealed external shell disposed around the insulation layer. The space between the internal shell and the external shell being under vacuum, the external shell resting on the periphery of the thermal insulation layer, and the thermal insulation layer having an insulating material of the “pressure-responsive” type. Also including a protective shell disposed around the external shell, and at least one supporting component having an end connected rigidly to the internal shell and a second end rigidly connected to the protective shell such that such that the assembly having the internal shell. The external shell and the thermal insulation layer under vacuum is suspended in the protective shell via the at least one supporting component.