A heat exchanger comprises an inlet, an outlet, a heat exchanging channel, and an opening. The heat exchanging channel surrounds a cavity. The opening provides access to the cavity. The inlet is coupled to one end of the heat exchanging channel and the outlet is coupled to another end of the heat exchanging channel. The heat exchanging channel is isolated from the cavity. No access or passage is present between the heat exchanging channel and the cavity. During operation, heat exchanging fluid flows through the heat exchanging channel thereby cooling fluid within the cavity. The heat exchanging fluid never contacts the fluid within the cavity. In various embodiments, the heat exchanging channel has a single or stacked layer when viewed along a cross section. The heat exchanging channel has a spherical, cylindrical, or rectangular shape. In one embodiment, an insulative layer is disposed between layers of the heat exchanging channel.

The invention relates to a pressure vessel comprising: a vessel body, wherein, at an upper end of the vessel body, an end section is integrally formed with the vessel body, which has an opening, and a valve arranged in the end section. At least two outflow openings are formed in the wall surrounding the opening of the end region below the opening, which are in particular arranged opposite one another. In an outflow position of the valve, the outflow openings are fluidically connected via the valve to a body interior of the vessel body and the opening of the end region is closed in a media-tight manner, and, in a filling position of the valve, the opening of the end region is fluidically connected to the body interior of the vessel body via the valve. Furthermore, the invention relates to a method for filling the pressure vessel.

Provided is a pressure vessel having an outer layer with an improved gas barrier property, a lightweight liner with an excellent gas barrier property, and a novel method for manufacturing a pressure vessel. The pressure vessel contains a liner and an outer layer of the liner, wherein the outer layer is configured by a composite material that contains a continuous fiber and a polyamide resin impregnated into the continuous fiber; the polyamide resin contains a structural unit derived from diamine and a structural unit derived from dicarboxylic acid; and 50 mol % or more of the structural unit derived from diamine is derived from xylylenediamine.

A novel tank cryogenic-compatible composite pressure vessel that beneficially utilizes Vapor Cooled Shielding (VCS) is introduced to minimize thermal gradients along support structures and reduces heat loads on cryogenic systems. In particular, the configurations and mechanisms to be utilized herein include: providing for a desired number of passageways and a given thickness of the VCS, reducing the thermal conductivity of the VCS material, and increasing the cooling capacitance of the hydrogen vapors.

A subsea tank element comprises at least one tank section (1), the tank section(s) forming a cylindrical concrete-tank (2) closed at its opposite ends by two end caps (12). The tank element further comprises a rectangular structure (3, 4, 5) surrounding the cylindrical tank (2), and a connection (150, 160) between the rectangular structure (3, 4, 5) and the cylindrical tank (2) permitting a motion of the wall of the cylindrical tank (2) within predetermined limits for deflection of the rectangular structure (3, 4, 5). Permanent ballast (6, 7) and a ballast tank (8) control buoyancy and ensure static stability. Post tensioning cables through channels 9 tie the parts into a tank element, and the tank elements into a system. Several applications, including a subsea barge, a subsea hydro-electric plant and a hovering storage tank assembly are disclosed.

The invention relates to a transport container for helium, comprising an inner container for receiving the helium, an insulation element that is provided on the exterior of the inner container, a coolant container for receiving a cryogenic liquid, an outer container in which the inner container and the coolant container are received, and a thermal shield which can be actively cooled with the aid of the cryogenic liquid and in which the inner container is received, wherein a peripheral gap is provided between the insulation element and the thermal shield, and said insulation element comprises an electrodeposited copper layer that faces the thermal shield.

A pressure vessel includes a carbon fiber reinforced plastic with an integrated permeation barrier as its innermost layer. Alternating layers of permeation barrier and carbon fiber reinforced plastic may also be used. During manufacturing, the permeation barrier is sprayed on and integrated into the composite. The vessel, which is well-suited for high pressure gas storage is lighter weight than prior art vessels and has more usable volume than same-dimensioned prior art vessel. The permeation barrier encapsulates one or more ports or fittings of the vessel to reduce or eliminate the potential for gaps through which gas can escape. In one embodiment, a removable tooling process is employed in the manufacture of the vessel. In another embodiment, a permanent tooling process is employed and the tooling serves as a sorbent material for the vessel.

Provided is a pressure vessel having an outer layer with an improved gas barrier property, a lightweight liner with an excellent gas barrier property, and a novel method for manufacturing a pressure vessel. The pressure vessel contains a liner and an outer layer of the liner, wherein the outer layer is configured by a composite material that contains a continuous fiber and a polyamide resin impregnated into the continuous fiber; the polyamide resin contains a structural unit derived from diamine and a structural unit derived from dicarboxylic acid; and 50 mol % or more of the structural unit derived from diamine is derived from xylylenediamine.

A Venturi filling system having a first filling coupler configured to be coupled to a first set of fittings disposed at a first tank end of a tank; a second filling coupler configured to be coupled to a second set of fittings disposed at a second tank end of the tank; and a Venturi assembly that includes: a Venturi mixing chamber, the Venturi mixing chamber communicating with the first filling coupler; a Venturi nozzle configured to introduce a first flow of fluid from a fluid source to the Venturi mixing chamber of the Venturi assembly; and an suction inlet communicating with the second filling coupler and coupled with the Venturi chamber and configured to receive a second flow of fluid originates from the second filling coupler such that the second flow of fluid flows into the Venturi chamber and mixes with the first fluid flow within the Venturi mixing chamber.

Provided is a tank cooling device that is capable of cooling a tank more quickly. A tank cooling device 4 has a nozzle 40. The nozzle 40 is comprised to supply cooling gas for cooling a tank 100 to an outer surface of the tank 100, with the cooling gas assisted by compressed gas in the nozzle 40. The tank 100 has a tank main body 101 made by using synthetic resin and an end member 102 made by using metal. The nozzle 40 supplies a gas flow to each of the tank main body 101 and the end member 102.