Abstract:
A cellular reservoir flexible pressure vessel is formed as a series of closely packed tubes fitted into a pair of opposing end caps. The end caps have individual receptacles sized and shaped to receive the tube ends that are secured with adhesive or radio frequency welding. At least one end cap has a passageway for connection of the vessel. The vessel may be formed in a variety of useful shapes and the tubes may have various internal and external cross-sections. The end caps may be filled with sintactic foam with canals leading to the passageway. Microtubes through the syntactic foam may connect the tubes to the passageway. The vessel is further strengthened by overwrapping with high-strength braiding material, hoop winding or by overlayment with high-strength fabric. The vessel is further strengthened by coating with plastic resin. Apparatus and methods for forming the cellular reservoir flexible vessels are described.
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 null40null C. when stress is applied to the low-carbon steel tube sufficient to cause the low carbon steel tube to so yield.
Abstract:
A method and apparatus for transporting or storing compressed natural gas in a marine environment includes the providing of a heavy lift vessel that has a weather deck area that is bounded by forward and aft, port and starboard sides or walls that extend above the weather deck. A buoyant module is provided that contains a pipeline, the pipeline including multiple alternating straight sections and bend sections and multiple layers. The pipeline is supported at differing elevations within the module interior so that the various sections of the pipeline are preferably spaced apart to enable visual and/or remote exterior inspection (e.g. video, radar, x-ray, acoustic, or other exterior, non-destructive test) of the outer surface of the pipeline. The pipeline has a continuous bore that is piggable for internal inspections. The module can be transferred to a heavy lift vessel or can be used as flotation. The combination of heavy lift vessel and module can travel to a selected location for loading and unloading compressed natural gas. The module can be placed in a marine environment to serve as a storage facility for compressed natural gas.
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:
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:
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 (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 null40null 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:
A lower header 10 into which low temperature liquid is flowed and an upper header 16 are connected with each other via a plurality of outer heat exchange tubes 22. A plurality of inner heat exchange tube 24 are respectively provided in the corresponding outer heat exchange tubes 22 at a region of an inflow end portion of each outer heat exchange tube 22. An annular passage 23 is defined between an inside surface of each outer heat exchange tube 22 and an outside surface of each inner heat exchange tube 24 for flowing low temperature liquid. Each annular passage 23 is communicated with the lower header 10.
Abstract:
A ceramic composite is provided comprising ceramic fibers and microparticles bound together as a porous matrix with a ceramic binder. The ceramic composite is particularly useful for transporting cryogenic fluids.