Abstract:
A composite pressure vessel, comprising: a liner assembly, further comprising: a liner; at least one of a polar boss and a blind boss; and a shell, further comprising: at least one layer of a filament wrap continuously disposed around at least a substantial portion of the liner assembly, wherein the liner assembly and the filament wrap combined have a non-homogenous support profile; and at least one fiber segment locally disposed on an area of the liner assembly and the at least one layer of a filament wrap that may be more susceptible to rupture than other areas of the liner assembly, according to the non-homogenous support profile. Complementary pairs of fiber segments and/or hoops may be configured to address a non-homogenous stress distribution profile of the composite pressure vessel.
Abstract:
The invention relates to a device for floating production of LNG. The device comprises a LNG carrier comprising a ship hull (12) and at least one spherical LNG storage tank (13) for storing LNG, a projecting hull structure (16) fixed to the ship hull (12), a LNG production system (17) for converting natural gas to LNG, where the LNG production system is arranged in the projecting hull structure (16) and means for transferring LNG from the LNG production system (17) to the at lest one spherical LNG storage tank (13). The invention also relates to a method for converting an LNG-carrier to a device for floating production of LNG.
Abstract:
A storage device for the storage of a medium, in particular of a pressurized medium, such as, for example, liquefied natural gas, having a single-walled or multi-walled storage container, is described. According to the invention, in the upper region of the storage space (3) a multiplicity of nozzles (6) are provided, these nozzles (6) being arranged in such a way that the medium discharged from these produces a downwardly directed curtain of mist (8), the mist curtain (8) being configured such that between its outer wall and the inner wall of the storage space (2) at least one convection roll (9) can be formed.
Abstract:
A fluid storage container with a baffle controls the heat absorption percentage of the container. Fluid that is heated adjacent to the surface of a container rises replacing colder fluid which sinks downward, regardless of the baffle. This behavior is able to lead to onset of oscillations in the temperature and flow fields. Due to blockage effect of a thin baffle, multi- cell recirculating vortex structures are observed. The number and strength of these vortices depend on the position and length of the baffle. For certain placements and lengths of the baffle, the time rate of the rise of the bulk temperature is increased or decreased.
Abstract:
The present invention relates to a tank device for storing hydrogen for an aircraft. The tank device comprises an outer tank (1) and an inner tank (7). The inner tank (7) is held in the outer tank (1). The outer tank (1) is arranged such that the hydrogen with first physical characteristics can be stored. The inner tank (7) is designed such that the hydrogen with second physical characteristics can be stored. The outer tank (1) is connected to the inner tank (7) such that the hydrogen can be fed to the inner tank (7) from the outer tank (1). The inner tank (7) is designed such that the hydrogen with the first physical characteristics can be converted to the hydrogen with second physical characteristics. The inner tank (7) is arranged such that the hydrogen comprising the second physical characteristics can be fed to a consumer.
Abstract:
A method and apparatus for unloading natural gas (NG), including gasifying liquid and/or compressed NG using the latent heat of water and propane, and/or storing liquid or compressed NG gas in a storage cavern system that utilizes a buffer layer to prevent hydrating the NG gas, the storage cavem system being configured such that the NG may be forced out of a first storage chamber by increasing the amount of brine in a second chamber to displace a buffer fluid located therein such that the displace buffer fluid enters the first storage chamber and displaces the NG, as well as the processes for compressing, chilling and/or liquefying quantities of LNG and transporting those volumes to markets for redelivery.
Abstract:
The present invention provides an extended spherical LNG storage tank, installed on an LNG tanker, and a method for manufacturing the same, in which the junctions between a connection tank part and upper and lower tank parts are configured as smooth parts, thus increasing the LNG storage capacity of the tank and mitigating stress concentration on the junctions, and the connection tank part is constructed by integrating a plurality of plates into a single structure, thus increasing work efficiency while fabricating the connection tank part and thereby enabling quick and easy production of the LNG storage tanks. In the extended spherical LNG storage tank, which includes the upper and lower tank parts, each having a predetermined radius of curvature R, and the connection tank part provided between the upper and lower tank parts so as to increase the LNG storage capacity of the tank, the connection tank part is defined by a circular arc or a parabola C3, which is circumscribed with two circles Cl and C2, which define the upper tank part and the lower tank part, respectively, outside the two circles Cl and C2.
Abstract:
A gas storage system (1) comprises a tank (10), having a tank gas outlet (28), and a multitude of gas emitting entities (20) encapsulated by the tank (10). The gas emitting entities (20) are arranged for providing a gas volume, which when released from said gas emitting entities, is considerably larger than a volume of the gas emitting entities (20) themselves. The gas emitting entities (20) are freely contained in the tank (10), i.e. there are no gas conduits or electrical connections to the tank (10). The tank (10) has a sealable opening (18) suitable for removal or insertion of the gas emitting entities (20) and the gas emitting entities (20) have a respective gas release device, which is operable as a response on a stimulation signal. A volume (14) surrounding the gas emitting entities (20) inside the tank (10) is the sole fluid connection between an opening of the gas release device and the tank gas outlet (28). Methods for storing and releasing gas are also presented.