摘要:
Disclosed are a method and an apparatus for treating boil-off gas generated in an LNG storage tank of an LNG carrier for transporting LNG in a cryogenic liquid state, the LNG carrier having a boil-off gas reliquefaction plant, wherein an amount of boil-off gas corresponding to a treatment capacity of the reliquefaction plant among the total amount of boil-off gas generated during the voyage of the LNG carrier is discharged from the LNG storage tank and reliquefied by the reliquefaction plant. The boil-off gas treating method and apparatus can maintain an amount of boil-off gas discharged from an LNG storage tank at a constant level by storing in the LNG storage tank, instead of discharging and burning, surplus boil-off gas which has not been returned to the LNG storage tank through the reliquefaction plant among the total amount of boil-off gas generated in the LNG storage tank, and can prevent waste of boil-off gas and save energy by allowing an internal pressure of the LNG storage tank to be increased.
摘要:
A solid electrolyte is disclosed. The solid electrolyte includes a main portion that includes β-alumina or β″-alumina, and an edge portion integrally provided with the main portion. The edge portion has a mixed portion that includes α-alumina and includes β alumina or β″-alumina. A concentration gradient of the α-alumina in the edge portion decreases in a first direction from the edge portion to the main portion.
摘要:
A flat panel display apparatus includes a display unit for displaying images, a first semiconductor and a second semiconductor electrically connected to the display unit, and a heat sink electrically connected to the first semiconductor and to the second semiconductor.
摘要:
Disclosed is an apparatus for producing nitrogen equipped in a marine structure such as a liquefied natural gas regasification vessel (LNG RV) and a floating storage and regasification unit (FSRU), and a method for producing nitrogen in a marine structure using the apparatus. The apparatus for producing nitrogen equipped in a flowing marine structure produces nitrogen to be mixed with natural gas to be supplied to consumers after regasification. The floating marine structure in which the apparatus is equipped has an LNG regasification facility for compressing the LNG stored in a storage tank using a high-pressure pump and then vaporizing the LNG into natural gas in a vaporizer to supply natural gas to consumers. The apparatus for producing nitrogen secures cold heat necessary to produce nitrogen using the LNG supplied from the storage tank.
摘要:
A fuel gas supply system of an LNG carrier is provided for supplying fuel gas to a high-pressure gas injection engine of an LNG carrier, wherein LNG is extracted from an LNG storage tank of the LNG carrier, compressed at a high pressure, gasified, and then supplied to the high-pressure gas injection engine.
摘要:
An operating system of a liquefied natural gas ship for performing sub-cooled liquefaction of boil-off gas includes a boil-off gas compressor, a cryogenic heat exchanger connected to a refrigerator system, and a first check valve and a first pressure control valve, installed in a pipe between a liquefied natural gas phase separator and a gas combustion unit, and a second check valve and a second pressure control valve, installed in a parallel pipe connected to the pipe in parallel. The parallel pipe is connected to a pipe between the boil-off gas compressor and the cryogenic heat exchanger such that boil-off gas is supplied to an upper vapor region of the liquefied natural gas phase separator. Thus, pressure and level of the liquefied natural gas phase separator are stably controlled. Power consumption is effectively reduced, and economical efficiency is achieved by stable operating pressure and level of the liquefied natural gas phase separator.
摘要:
A filter assembly, a plasma display panel with the filter assembly and a method of manufacturing the filter assembly. The plasma display panel includes a panel assembly, a chassis base on which a driving circuit is mounted and located on a rear of the panel assembly, a filter assembly mounted in front of the panel assembly, and a case that accommodates the panel assembly, the chassis base, and the filter assembly. The filter assembly includes a transparent substrate, an anti-reflection film, and an electromagnetic wave shielding filter attached to the rear surface of the substrate, and the electromagnetic wave shielding filter is grounded to the inner side of the case and is made of a metal mesh that includes a plating layer and a strike seed layer.
摘要:
An electrode structure and an electrochemical cell including the electrode structure are provided. The electrode structure includes a porous three-dimensional (3D) outer net including an interconnected plurality of outer metal lines that define a plurality of outer holes between adjacent ones of the outer metal lines. The outer metal lines include a porous 3D inner net, a first layer coating the inner net, and a second layer coating the first layer. The inner net includes an interconnected plurality of inner metal lines that define a plurality of inner holes between adjacent ones of the inner metal lines. The inner metal lines include a first metal. The first layer includes a second metal. The second layer includes a third metal.
摘要:
An electrochemical battery including: a housing; a pouch-shaped solid electrolyte disposed in the housing and having an open end; an insulator that is disposed on the open end of the solid electrolyte to cover the open end and includes a plurality of protrusions facing the open end of the solid electrolyte; at least two types of sealants disposed between the solid electrolyte and the insulator and having different glass transition temperatures, respectively; a first electrode material disposed inside the pouch-shaped solid electrolyte; and a second electrode material disposed outside the pouch-shaped solid electrolyte.
摘要:
An electrode structure and an electrochemical cell including the electrode structure are provided. The electrode structure includes a porous three-dimensional (3D) outer net including an interconnected plurality of outer metal lines that define a plurality of outer holes between adjacent ones of the outer metal lines. The outer metal lines include a porous 3D inner net, a first layer coating the inner net, and a second layer coating the first layer. The inner net includes an interconnected plurality of inner metal lines that define a plurality of inner holes between adjacent ones of the inner metal lines. The inner metal lines include a first metal. The first layer includes a second metal. The second layer includes a third metal.