Abstract:
A suspension system (3) for an inner container (2) mounted for thermal insulation in an outer container (1) comprises a single fixed bearing (30, 31, 32, 33, 34, 35) comprising rod-shaped fixed bearing securing elements (5) which engage, on the one hand, the outer container and, on the other hand, the inner container and which can be stressed in tension and in compression, the fixed bearing securing elements (5) engaging the inner container (2) while being arranged so as to be distributed in an annular installation space (7) defined between the inner container (2) and the outer container (1) and the fixed bearing securing elements (5) engaging the outer container (1) while being distributed in the annular installation space (7). In addition, a floating bearing (41, 42, 43, 44, 45) arranged in the outer container (1) and supporting the inner container (2) and designed with a floating bearing ring (10, 10′) can be provided, with annularly distributed floating bearing securing elements, (11, 11′), which can be stressed in tension and in compression, engaging, on the one hand, the floating bearing ring (10, 10′) and, on the other hand, the inner container or the outer container. The floating bearing ring (10, 10′) can be prestressed by means of tension springs (12) or compression springs (13).
Abstract:
A fluid storage tank includes a plurality of tank sub-units disposed in an array. Each tank sub-unit of the plurality of tank sub-units has an aperture defined in at least one wall overlapping with another aperture defined in at least one adjacent tank sub-unit of the plurality of tank sub-units. Each tank sub-unit of the plurality of tank sub-units is in fluid communication with a single outlet port for selectively extracting a stored fluid from the tank. Each of the plurality of tank sub-units is in fluid communication with a single fluid fill port.
Abstract:
A mouthpiece structure for a pressure vessel includes a liner made of a synthetic resin, and constituting a vessel body and a cylindrical part communicating between an interior and an exterior of the vessel body, a cylindrical mouthpiece mounted closely to an inner periphery of the cylindrical part, a retainer having a covering portion which covers regions of outer surfaces of the cylindrical part and the mouthpiece respectively and a peripheral wall surrounding the cylindrical part, the cylindrical part and the mouthpiece having an interface between an inner periphery of the cylindrical part and an outer periphery of the mouthpiece, the interface having a distal end facing the regions, a first sealing member disposed between the mouthpiece and the covering portion, and a second sealing member disposed between the cylindrical part and the peripheral wall of the retainer.
Abstract:
Embodiments of the present invention relate to compressed gas storage units, which in certain applications may be employed in conjunction with energy storage systems. Some embodiments may comprise one or more blow-molded polymer shells, formed for example from polyethylene terephthalate (PET) or ultra-high molecular weight polyethylene (UHMWPE). Embodiments of compressed gas storage units may be composite in nature, for example comprising carbon fiber filament(s) wound with a resin over a liner. A compressed gas storage unit may further include a heat exchanger element comprising a heat pipe or apparatus configured to introduce liquid directly into the storage unit for heat exchange with the compressed gas present therein.
Abstract:
Gas containment vessels are provided that are comprised of an inner corrosion resistant shell made of lower strength steel alloy or aluminum alloy or thermoplastic polymer, and an outer concentric shell constructed of high strength, albeit lower corrosion resistant, metal or fiber-reinforced composite. The fiber can comprise filaments derived from basaltic rocks, the filaments having been immersed in a thermosetting or thermoplastic polymer matrix, and comingled with carbon, glass or aramid fibers such that there is load sharing between the basaltic fibers and carbon, glass or aramid fibers.
Abstract:
A thermal curing device is used to manufacture a high-pressure gas tank by FW method. In the thermal curing device, a tank vessel configured to have a fiber layer formed on its outer surface by winding carbon fibers impregnated with a thermosetting resin is held to be rotatable about a virtual central axis of the tank vessel. In the thermal curing device, the tank vessel is heated by a heating unit during rotation, so as to thermally cure the thermosetting resin in the fiber layer and thereby form a fiber-reinforced resin layer. A bubble removal process for preventing formation of air bubble in the fiber-reinforced resin layer is performed at multiple different stages during such heating.
Abstract:
Disclosed is an improved analytical method that can be utilized by hydrogen filling stations for directly and accurately calculating the end-of-fill temperature in a hydrogen tank that, in turn, allows for improvements in the fill quantity while tending to reduce refueling time. The calculations involve calculation of a composite heat capacity value, MC, from a set of thermodynamic parameters drawn from both the tank system receiving the gas and the station supplying the gas. These thermodynamic parameters are utilized in a series of simple analytical equations to define a multi-step process by which target fill times, final temperatures and final pressures can be determined. The parameters can be communicated to the station directly from the vehicle or retrieved from a database accessible by the station. Because the method is based on direct measurements of actual thermodynamic conditions and quantified thermodynamic behavior, significantly improved tank filling results can be achieved.
Abstract:
Devices and methods for addressing permeation of a gas through a liner of a pressure vessel involve a porous layer between the liner and a composite shell of the pressure vessel around the liner. The porous layer provides fluid communication with atmosphere for gases that permeate through the liner. Such porous layers may be provided in a continuous wound set of fibers about the liner. Further, an inner composite structure may be provided between the liner and the porous layer to reduce the rate of permeation to the porous layer.
Abstract:
A pressure vessel refuelling system enables consistent mass flow rates and reduces the in-tank temperature rise caused by the heat of compression as gas is added to a vessel. The system includes a pressure vessel having a first gas inlet/outlet port and an interior cavity, and a nozzle is in fluid communication with the first gas inlet/outlet port. The nozzle and the pressure vessel are thermally coupled such that Joule-Thomson expansion of a gas flowing through the nozzle cools the interior cavity and contents of the pressure vessel.
Abstract:
The container has an end wall portion (12) provided with an access opening (A) in which is affixed a nozzle (B) in the form of a metallic tubular insert (20) comprising: a mounting portion (21) fitted in the access opening (A); a nozzle portion (22); an external peripheral flange (23), having an annular face (23a) in which are adapted annular sealing means (30); and a nut (40) adapted around the mounting portion (21) and pressing the end wall portion (12) against the annular sealing means (30) of the annular face (23a) of the flange (23). The end wall portion (12) may be preformed in a single piece with an annular wall portion or fixed to the latter, and provided, in both constructions, with a median opening (13,51) which defines the access opening (A) of the container.