Abstract: Disclosed is a corner structure (100) of a liquefied gas storage tank, wherein the corner structure is installed at a corner of a storage tank for loading liquefied gas and supports sealing walls (51, 52) that prevent leakage of the liquefied gas. The corner structure (100) may include: two insulation members (110) arranged on the inner surface of a hull structure so as to be oriented in different directions; and mobile members (130) which are installed on the respective insulation members (110) and to which the sealing walls (51, 52) are joined. The mobile members (130) may be slidably coupled to the insulation members 110, and a plurality of the mobile members (130) may be arranged spaced apart from each other in a straight line on one of the insulation members.

Abstract: Provided a method of predicting permeability of porous material based on anisotropic flow model. The method of predicting permeability of porous material based on anisotropic flow model comprises: providing a porous medium; establishing a concentric annulus flow model for the porous medium; calculating a concentric annulus cylinder interstitial flow velocity, a concentric annulus cylinder hydraulic tortuosity, and a concentric annulus cylinder hydraulic diameter using the concentric annulus flow model; and predicting a permeability for the porous medium using the concentric annulus cylinder hydraulic tortuosity and the concentric annulus cylinder hydraulic diameter.

Abstract: Provided a method for predicting permeability according to the geometrical change in a porous medium on the basis of a superficial effective diameter, wherein the permeability according to geometrical changes in the porous medium is precisely predicted. The method for predicting permeability according to geometric change in the porous medium comprises: providing a porous medium; obtaining first porosity and first permeability at a plurality of points of the porous medium, respectively; calculating a first superficial effective diameter using the first porosity and the first permeability; establishing a first correlation between the first porosity and the first superficial effective diameter, a second correlation between the first permeability and the first superficial effective diameter, and a third correlation between the first porosity and the first permeability; and using the correlations to predict a second permeability for a second porosity changed by a geometrical change in the porous medium.

Abstract: A corner structure of a liquefied gas storage tank is provided, wherein the corner structure is installed at a corner of the storage tank for storing liquefied gas to support sealing walls. The corner structure includes: a stationary member secured to an inner surface of a hull structure wall; a movable member disposed on the stationary member such that the sealing walls are joined thereto; and an insulating member interposed between the sealing walls and the hull structure wall. The stationary member includes a stationary member body bent at a curved portion thereof in an opposite direction to the movable member, and the movable member includes a movable member body bent at a bent portion thereof in an opposite direction to the stationary member. The stationary member and the movable member are coupled to each other by a fastening member that penetrates the curved portion and the bent portion.

Abstract: Provided is a hydrogen storage system including a solution including ethylenediamine bisborane (EDAB) and ethylenediamine (ED), in which the hydrogen storage system is capable of performing a reversible dehydrogenation/hydrogenation reaction at a temperature of 20° C. to 200° C. in the presence of a heterogeneous metal catalyst including ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Jr), platinum (Pt), nickel (Ni), iron (Fe), cobalt (Co), or a combination thereof.

Abstract: Provided is a hydrogen storage system including a solution including ethylenediamine bisborane (EDAB) and ethylenediamine (ED), in which the hydrogen storage system is capable of performing a reversible dehydrogenation/hydrogenation reaction at a temperature of 20° C. to 200° C. in the presence of a heterogeneous metal catalyst including ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), platinum (Pt), nickel (Ni), iron (Fe), cobalt (Co), or a combination thereof.

Abstract: Provided is a hydrogen storage system including a solution including ethylenediamine bisborane (EDAB) and ethylenediamine (ED), in which the hydrogen storage system is capable of performing a reversible dehydrogenation/hydrogenation reaction at a temperature of 20° C. to 200° C. in the presence of a heterogeneous metal catalyst including ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Jr), platinum (Pt), nickel (Ni), iron (Fe), cobalt (Co), or a combination thereof.

Abstract: Disclosed is a corner structure (100) of a liquefied gas storage tank, wherein the corner structure is installed at a corner of a storage tank for loading liquefied gas and supports sealing walls (51, 52) that prevent leakage of the liquefied gas. The corner structure (100) may include: two insulation members (110) arranged on the inner surface of a hull structure so as to be oriented in different directions; and mobile members (130) which are installed on the respective insulation members (110) and to which the sealing walls (51, 52) are joined. The mobile members (130) may be slidably coupled to the insulation members 110, and a plurality of the mobile members (130) may be arranged spaced apart from each other in a straight line on one of the insulation members.

Abstract: Disclosed is a corner structure (100) of a liquefied gas storage tank, the corner structure (100) being installed on a corner of a liquefied gas-carrying storage tank to support sealing walls (51, 52) that prevent the liquefied gas from leaking. The corner structure (100) comprises: two insulation members (110) arranged, oriented in different directions, on the inner surface of structural walls of a ship; and operational members (130) which are disposed on respective insulation members (110), and to which the support sealing walls (51, 52) adhere. The operational members (130) may be attached to the insulation members (110) so as to allow sliding against same.

Abstract: Disclosed is a corner structure of a liquefied gas storage tank, wherein the corner structure is installed at a corner of the storage tank for storing liquefied gas to support sealing walls. The corner structure includes: a stationary member secured to an inner surface of a hull structure wall; a movable member disposed on the stationary member such that the sealing walls are joined thereto; and an insulating member interposed between the sealing walls and the hull structure wall. The stationary member includes a stationary member body bent at a curved portion thereof in an opposite direction to the movable member, and the movable member includes a movable member body bent at a bent portion thereof in an opposite direction to the stationary member. The stationary member and the movable member are coupled to each other by a fastening member that penetrates the curved portion and the bent portion.

Abstract: The present invention relates to a container transportation ship. More particularly, the present invention relates to a container transportation ship for transporting containers, characterized in that a loading space in which at least one container is loaded and a loading/unloading space configured such that an external transfer means can directly enter/exit in order to load and unload the container, are delimited on the deck of the container transportation ship; and a crane is provided to move the container in the longitudinal direction of the container transportation ship, in the transverse direction thereof, and in the upward/downward direction thereof for the purpose of loading the container on the external transfer means that has entered the loading/unloading space or unloading the container from the external transfer means.

Abstract: Provided is a method of calculating a tortuous hydraulic diameter of a porous medium for laminar flow and turbulent flow considering a geometric feature and a friction loss feature. A method of calculating a tortuous hydraulic diameter of a porous medium, according to an embodiment of the present invention, includes providing porosity and a specific surface area of a porous medium, calculating a hydraulic diameter of the porous medium by using the porosity and the specific surface area, calculating tortuosity of the porous medium, and calculating a tortuous hydraulic diameter corresponding to a function of tortuosity, by using the hydraulic diameter and the tortuosity of the porous medium.

Abstract: Provided is a hydrogen storage system including a solution including ethylenediamine bisborane (EDAB) and ethylenediamine (ED), in which the hydrogen storage system is capable of performing a reversible dehydrogenation/hydrogenation reaction at a temperature of 20° C. to 200° C. in the presence of a heterogeneous metal catalyst including ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Jr), platinum (Pt), nickel (Ni), iron (Fe), cobalt (Co), or a combination thereof.

Abstract: A method for modeling gas production in a coalbed methane gas (CBM) reservoir including (a) dividing a reservoir in a CBM development area into three-dimensional grids to form the three-dimensional grids having a plurality of cells; (b) forming at least one drilling hole in the development area and obtaining a sample for each depth in the reservoir; (c) modeling the amounts of ash, water, and gas for the plurality of cells in the three-dimensional grids; (d) modeling a pressure change over time in each of the cells in the grid under a premise in which a production well is formed in the grids; and (e) performing a Langmuir experiment for a core sample obtained from step (b).

Abstract: Provided is a method of calculating permeability of a porous medium by using analysis of feature variables of friction flows through the porous medium for laminar and turbulent flows considering a geometric feature and a friction loss feature. A method of calculating permeability of a porous medium, according to an embodiment of the present invention, includes obtaining hydraulic diameters and friction factor-Reynolds number relationships of a plurality of reference porous media, deriving a hydraulic diameter-friction factor-Reynolds number correlation between the hydraulic diameters and the friction factor-Reynolds number relationships, and obtaining permeability of a porous medium to be predicted, by using the hydraulic diameter-friction factor-Reynolds number correlation.

Abstract: An LNG fueling station according to the present invention includes: an installation part on which an LNG tank container is installed, and a supply part for supplying liquefied natural gas from the LNG tank container installed on the installation part to an object for supply, wherein the LNG tank container can be transported and installed while storing the liquefied natural gas, and the LNG tank container is transported to the installation part and then installed on the installation part.

Abstract: The present invention relates to an apparatus for loading and unloading an LNG tank container, the apparatus comprising: a base provided at a place at which LNG is used; a transfer cart capable of moving back and forth with respect to the base; a clamping device provided at a head part of the transfer cart; and a clamp position adjusting device capable of adjusting a horizontal position of the clamping device. Since there is no transfer of the LNG between tanks, the amount of LNG loss is reduced and the risk for the occurrence of a fire accident is reduced.

Abstract: A natural gas supply station includes an installation structure on which an LNG tank container is installed and a gas vaporizer that receives a liquefied natural gas from the LNG tank container to vaporize the liquefied natural gas. The installation structure includes a moving part reciprocatively moving in a direction in which the LNG tank container is unloaded from a transport unit, and the moving part is separably fixed to the LNG tank container to move the LNG tank container loaded on the transport unit to the installation structure or the LNG tank container loaded on the installation structure to the transport unit.

Abstract: The present invention provides an apparatus for molding gas hydrate pellets that includes: a pulverizer in which dehydrated gas hydrates are pulverized; a cooler having a rotating shaft provided therein, comprising a plurality of agitation blades installed along a height direction of the rotating shaft and configured to cool the gas hydrates to a predetermined temperature; a decompressor configured to decompress the cooled gas hydrates to a predetermined pressure; and a pellet molder configured to mold the decompressed gas hydrates to pellets.

Abstract: An LNG tank container transport ship, according to one embodiment of the present invention, which has a load space on the inside thereof, in which LNG tank containers storing liquefied natural gas are loaded, comprises: a crane which is arranged on the upper part of the load space so as to catch a container to be transported; at least one horizontal transport frame which guides the horizontal direction movement of the crane; and at least one vertical transport frame which is connected to the horizontal transport frame so as to guide the movement of the crane in the direction perpendicular to the horizontal transport frame. According to one embodiment of the present invention, there is an effect of providing a dedicated transport ship for LNG tank container transport by having therein a separate load space so as to load LNG tank containers.