Abstract: Provided is a low heat loss cryogenic liquid container, which includes: an outer container, to an upper end of which an upper end cover is coupled and an interior of which is maintained in a vacuum; an inner container that is disposed inside the outer container apart from an inner wall of the outer container and contains a cryogenic liquid; a liquid inflow/outflow pipe that connects an exterior of the outer container and an interior of the inner container and serves as a passage for charging and/or discharging the cryogenic liquid; and a support including a strut member that is disposed between an inner lower surface of the outer container and an outer lower surface of the inner container and is formed of a low heat conductivity material to interrupt heat conduction, and springs disposed at least one position between an upper end of the strut member and the outer lower surface of the inner container, between a lower end of the strut member and the inner lower surface of the outer container, and between both o

Abstract: An example hydrogen liquefaction apparatus is disclosed. The apparatus includes an outer container; a liquefaction container positioned at least partially within the outer container; a heat pipe positioned within the liquefaction container. The head pipe includes a condensing portion, an evaporating portion, an inner tube portion containing a working fluid and operatively coupling the condensing portion to the evaporating portion, and an outer tube portion surrounding the inner tube portion and defining a dual tube region between the outer tube and the inner tube. Also included is a cryocooler in thermal communication with the liquefaction container, a pre-cooling tube, and an ortho-para converting part having a catalyst configured to induce an ortho-para conversion of gaseous hydrogen within the pre-cooling tube.

Abstract: A fluid storage device is provided having low heat-loss characteristics. The storage device may include an internal container for storing a cryogenic liquid and an external container at least partially surrounding the internal container. The storage device may include a cover enclosing an upper end of the external container and configured to maintain a vacuum around the inner container, as well as a transferring tube connected to the internal container to supply and/or extract the cryogenic liquid to/from the internal container. The storage device can also include a support structure coupled to both the cover and the internal container such that the internal container is suspended within the external container via the support structure.