Abstract:
A vessel that has been reinforced to withstand high internal pressures for example in an HVACR system. The vessel can have a tubular body having a middle portion and at least one of a first tapered portion extending from a first end of the middle portion and a second tapered portion extending from a second end of the middle portion. A monolithic reinforcement sleeve surrounds the tubular body and has at least one of a first tapered end portion adjacent to and surrounding at least part of the first tapered portion of the tubular member and second tapered end portion adjacent to and surrounding at least part of the second tapered portion of the tubular member.
Abstract:
A storage system, including an outer casing having an evacuated inner volume; a vessel for storage located within the outer casing and having a plurality of protrusions distributed on an outer surface thereof; and a plurality of filamentary strands spanning the inner volume, wherein at least some of the plurality of protrusions are essentially tangentially contacted by a plurality of the filamentary strands to secure the vessel in six degrees of freedom relative to the outer casing.
Abstract:
In various embodiments, lined underground reservoirs and/or insulated pipeline vessels are utilized for storage of compressed fluid in conjunction with energy storage and recovery systems.
Abstract:
A LNG storage container includes: an inner shell made of a metal withstanding a low temperature of the LNG and configured to store the LNG inside; an outer shell made of a steel withstanding an internal pressure of the inner shell and configured to enclosing the outside of the inner shell such that a space is formed between the inner shell and the outer shell; and a heat insulation layer part installed in the space between the inner shell and the outer shell and configured to reduce a heat transfer.
Abstract:
A method for producing pressurized liquefied natural gas and a production system therefor are provided. The method for producing pressurized liquefied natural gas includes: performing a dehydration process to remove water from natural gas supplied from a natural gas field, without a process of removing acid gas from the natural gas; and performing a liquefaction process to produce pressurized liquefied natural gas by liquefying the natural gas, which has undergone the dehydration process, at a pressure of 13 to 25 bar and a temperature of −120 to −95° C., without a process of fractionating natural gas liquid (NGL). Accordingly, it is possible to reduce plant construction costs and maintenance expenses and reduce LNG production costs. In addition, it is possible to guarantee high economic profit and reduce payback period in small and medium-sized gas fields, from which economic feasibility could not be ensured by the use of a conventional method.
Abstract:
A Hydrogen storage system comprising storage elements coupled to each other to form one or more containers disposed in a space having a volume V where the volume of each of the storage elements is much smaller than the volume V resulting in the storage elements experiencing reduced stress at their inner surfaces. Thus, Hydrogen can be stored at relatively high pressure within these storage elements due to the reduced stress experienced by their inner surfaces. Consequently, materials having relatively lower tensile strength and stiffness can be used to construct the storage elements of the Hydrogen storage system. Further, the storage elements can be shaped and sized to conform to a volume of space having an arbitrary shape and dimensions.
Abstract:
An apparatus (10) includes a low-carbon steel tube (24). The low-carbon steel tube (24) yields plastically more than about 5% before fracturing at temperatures down to about −40° C. when stress is applied to the low-carbon steel tube sufficient to cause the low carbon steel tube to so yield.
Abstract:
A shaped article is capable of at least one of containing and delivering a cryogenic fluid. The article has a porous structure that restricts the passage of cryogenic fluid in the liquid phase while permitting the passage of cryogenic fluid in the gaseous phase. The article may be in the form of a tube or container. The article permits a liquid cryogen to be transported to a specific site, and then cool the site by means of conduction from the cold article and convection of cold gas, the phase change of the evaporating liquid greatly enhancing the heat loss.
Abstract:
An apparatus for forming a polymeric pressure vessel includes two, coaxial plastic extruders separated by a hole-forming laser and connected to a variable die, a vacuum/blow molding apparatus, a fusing device, a braiding mechanism, and an overcoat applicator. The first extruder forms a tubular core, and the laser forms axially-spaced apertures in the core. The second extruder forms an outer tube coaxially over the tubular core and the variable die is alternately opened and closed to form parisons of increased material at axially-spaced locations along the outer tube. The parisons are moved into the molding apparatus and are expanded in a vacuum/blow molding process into hollow chambers of preferably ellipsoidal shape. The fusing device fuses the outer tube to the tubular core at locations between the spaced-apart hollow chambers, the braiding mechanism then applies a layer of interwoven reinforcing filament fiber, and the overcoat applicator applies a protective polymeric coating over the fiber layer. The entire device is computer-controlled for maximum automated efficiency. The first extruder and the hole-forming laser may be omitted if the inner tubular core is to be omitted from the pressure vessel.
Abstract:
A container is provided for storing pressurized liquefied natural gas at a pressure of about 1035 kPa (150 psia) to about 7590 kPa (1100 psia) and at a temperature of about -123.degree. C. (-190.degree. F.) to about -62.degree. C. (-80.degree. F.). The container is constructed from an ultra-high strength, low alloy steel containing less than 9 wt % nickel and having a tensile strength greater than 830 MPa (120 ksi) and a DBTT lower than about -73.degree. C. (-100.degree. F.).