Abstract:
Die Erfindung betrifft ein Verfahren zur Versorgung einer Pumpe mit kryogener Flüssigkeit insbesondere als Treibstoff für ein Flugzeug sowie eine Vorrichtung und einen Behälter zur Durchführung des Verfahrens, Als kryogener Treibstoff wird vorzugsweise Flüssiggas wie Flüssigerdgas, also LNG, verwendet. Für eine im Behälter oder außerhalb eines Behälters vorgesehene Pumpe ist der Zustand der kryogenen Flüssigkeit im Behälter entscheidend für ein Pumpen insbesondere im Hinblick auf die Ansaugfähigkeit der kryogenen Flüssigkeit, im Gegensatz zu Kerosin, welches weit unterhalb des Siedepunktes Im Flugzeug gelagert wird, kann beispielsweise ein Flüssigerdgas, das als siedende Flüssigkeit im Behälter vorliegt, nicht problemlos angesaugt werden. Um eine zuverlässige Versorgung der Pumpe (4) zu erreichen, wird eine kryogene Flüssigkeit (2) in einem Behälter (1) bereitgestellt und mit einer Pumpe aus dem Behälter entnommen. Ferner wird der Behälter zur verbesserten Entnahme der kryogenen Flüssigkeit mit einem Druck vorzugsweise einem Druck größer als ein Sättigungsdampfdruck der kryogenen Flüssigkeit beaufschlagt.
Abstract:
Disclosed is a device for mounting a tank in a ship (1). Said device comprises at least two foundations (4) which are fastened to the hull at a distance from each other in the longitudinal or transversal direction of the ship (1) and each of which supports one saddle (6) that is adapted to the shape of the tank (3) and is used for accommodating the tank (3). The inventive device further comprises an insulating layer (8) that is provided on each saddle (6) to thermally insulate the foundations (4) relative to the tank (3) as well as safety mechanisms (10; 12; 15) for mounting the tank (3) on the foundations (4), said safety mechanisms (10; 12; 15) allowing a relative movement between the tank (3) and at least one foundation (4) on the insulating layer (8) in the longitudinal direction of the tank. Each saddle (6) is fastened directly to the tank (3) and has a planar bottom face (7) while each foundation (4) has a planar top face (5), all bottom and top faces (7; 5) being parallel to one another. The insulating layer (8) is disposed between the bottom face (7) of the saddle (6) and the top face (5) of the associated foundation (4) while the safety mechanisms (10; 12; 15) allow a limited relative movement between each saddle (6) and the foundation (4) thereof on or in the insulating layer (8).
Abstract:
A storage system for an absorbing gas including a plurality briquette units situated within the storage tank is disclosed. In some embodiments, each briquette unit includes a liner or open vessel, and compressed gas-absorbing particulate matter associated with the liner for external support. In some embodiments, the liner or vessel maintains the form of the briquette unit. The liner or vessel do not form a pressure tight vessel, and in some embodiments, the local pressure rating of the liner or vessel is less than the gas pressure within the storage tank. Exemplary gas-absorbing materials include but are not limited to methane and hydrogen adsorbing materials such as activated carbon, zeolite, and other appropriate hydrocarbon gas and/or hydrogen adsorbing materials. Optionally, each briquette unit includes a wrapper for preventing circulation of said particulate matter within the storage tank. Optionally, the storage system includes a mechanism for supplying or removing heat to at least one briquette unit. Furthermore, a method for manufacturing any of the aforementioned gas storage systems is disclosed. Some embodiments of the present invention provide methane-powered motor vehicles including but not limited to automobiles, buses, trucks and ships including a storage system with compressed methane-adsorbing particulate matter.
Abstract:
An electrochemically active hydrogen diffusion barrier (2), which comprises an anode layer (6'), a cathode layer (6''), and an intermediate electrolyte layer (8), which is conductive to protons and substantially impermeable to hydrogen. A catalytic metal present in or adjacent to the anode layer (6') catalyzes an electrochemical reaction that converts any hydrogen that diffuses through the electrolyte layer (8) to protons and electrons. The protons and electrons are transported to the cathode layer (6'') and reacted to form hydrogen. The hydrogen diffusion barrier (2) is applied to a polymeric substrate (12) used in a storage tank to store hydrogen under high pressure. A storage tank equipped with the electrochemically active hydrogen diffusion barrier (2), a method of fabricating the storage tank, and a method of preventing hydrogen from diffusing out of a storage tank are also disclosed.
Abstract:
A method of manufacturing a composite vessel assembly (20) includes the steps of filling a first chamber defined by a first liner (28,30,32) with a first granulated material (96) through a first orifice (98) in the first liner. A vacuum is then applied to the first chamber, and the first orifice is plugged. The first liner may then be enveloped with a first layer (84) for structural rigidity followed by relief of the vacuum.
Abstract:
A pressure vessel assembly includes a vessel having a wall defining a chamber and a circumferentially continuous lip projecting into the chamber from the wall. The lip defines a through-bore that is in fluid communication with the chamber. A nozzle assembly of the pressure vessel assembly includes a tube projecting at least in-part into the through-bore, and an o-ring disposed between, and in sealing contact with, the tube and the lip.
Abstract:
The invention relates to a vaporisation device (4) for the cooling of a liquefied gas, said vaporisation device (1) comprising: a vaporisation chamber (14) disposed inside the inner space of a container (2, 19) that is intended to be filled with liquefied gas (3), the vaporisation chamber (14) comprising heat exchange walls (6) allowing the exchange of heat between an inner space inside the vaporisation chamber (14) and a liquefied gas (3) present in the inner space of the container (2, 19); an inlet circuit (5) comprising an intake that opens into the inner space of the container (2, 19) in order to remove a flow of liquefied gas in liquid phase from the container (2, 19) and a head loss member (13) that opens into the inner space of the vaporisation chamber (14) in order to expand the removed gas flow; and an outlet circuit (7) arranged to discharge the removed gas flow in gaseous phase from the vaporisation chamber (14) into a vapour-phase gas usage circuit (8), said outlet circuit (7) comprising a vacuum pump (9) that draws the gas flow into the vaporisation chamber (14), drives same towards the vapour-phase gas usage circuit (8) and maintains an absolute pressure below atmospheric pressure inside the vaporisation chamber (14).
Abstract:
A pressure vessel assembly includes a plurality of lobes, each lobe having at least one vertically arranged interior wall, the lobes positioned in a side by side arrangement such that a first interior wall of a first lobe is positioned adjacent a second interior wall of a second lobe, the first interior wall having a first wall top and bottom side, the second interior wall having a second wall top and bottom side, the first wall top side joined to the second wall top side and the first wall bottom side joined to the second wall bottom side. Also included are first and second end wall surfaces of each of the plurality of lobes. Further included is a plurality of end caps, each of the end caps joined to the end wall surfaces of the lobes, each of the end caps joined to at least one adjacent end cap.
Abstract:
Tank for storing pressure water, comprising a plurality of hollow and tubular segments (1) which are disposed adjacent and joined to each other and which are open on both sides, said tubular segments (1) forming a tank body (2) in which the pressure water is stored, the tank (100) comprising a rectangular shape, an intake (8) through which water enters the tank (100), and an outlet (9) through which the water is evacuated from said tank (100). Two adjacent tubular segments (1) are joined to each other by means of a connecting wall and the tank (100) comprises at least one cover (3) on each side of the tank body (2) in order to close said tank body (2). The connecting walls prevent a direct connection between the inside of two adjacent tubular segments (1), said tubular segments (1) being communicated to each other through the covers (3).