Provided is a fluid supply device capable of reducing loads to be applied to pipings while increasing tolerable rotation amounts of respective nozzles around a predetermined rotation axis. A fluid supply device 5 includes first pipings 31A to 31L connected to nozzles 11A to 11C and 12F to 12J, a rotary support part 10 supporting the nozzles 11A to 11C and 12F to 12J and the first pipings 31A to 31L, second flexible pipings 33A to 33L, and a linear guide 15. One end portions 33a of the second flexible pipings 33A to 33L are configured to rotate around a rotation axis L1 in conjunction with the respective first pipings 31A to 31L. A movable guide portion 51 of the linear guide 15 is configured to be linearly displaceable along with deforming movements of the respective second flexible pipings 33A to 33L caused by rotations of the respective first pipings 31A to 31L.

Sealed underground energy storage chamber, having a sealed underground energy storage chamber body configured within an underground rock; the sealed underground energy storage chamber body has a compound sealing layer; the compound sealing layer has a compound concrete sealing layer and a sealing liner layer arranged from outside to inside; the compound concrete sealing layer at least has one casted ultra-high-performance concrete layer; the sealing liner layer is attached to an inner surface of the casted ultra-high-performance concrete layer. A system containing at least two of the sealed underground energy storage chambers are also provided.

A method and system for mobile storage and dispensing of hydrogen (H.sub.2) for refueling H.sub.2-powered vehicles includes a compressor system having a plurality of compressor stages in fluid communication with at least a portion of manifold valves in locations between compressor stages. A booster compression stage positioned downstream of the compressor system is in fluid communication between at least two of the manifold valves. A plurality of H.sub.2 storage banks is positioned downstream of the compressor system and the booster compressor stage. Low-pressure H.sub.2 is pressurized by the compressor system and/or the booster compressor stage to a working pressure and stored within the H.sub.2 storage banks. Upon a decrease of the H.sub.2 in one or more of the H.sub.2 storage banks from the working pressure, the H.sub.2 is repressurized by the booster compressor stage. Also disclosed is a ground-based cryogenic tank and a method of manufacturing a ground-based cryogenic tank.

The present invention provides a compressed fuel tank, comprising: an inner tank in which liquefied gas is stored; a support rod penetrating a central axis of the inner tank and having both sides of the inner tank fixed at both ends thereof; an insulating member provided to surround the inner tank so as to block heat transfer to the outside; an outer tank accommodating the inner tank, the support rod and the insulating member therein; and a rod support part fixed to both sides of the inside of the outer tank to support both ends of the support rod so as to transfer the load of the inner tank to both sides of the outer tank.

The present invention concerns a method of lining (4) a container (2) for gas, such as hydrogen, helium, and the like, comprising the following steps: inserting (41) a powder of lining material (P) in a container (2); applying (42) the lining material (P) on the inner surface of the container (2); and fixing (43) the lining material (P) on the inner surface (211) of the container (2).

The present invention also concerns an apparatus (1) for the lining of a tank (2) for the containment of high-pressure gases.