Patent application number | Description | Published |
20100226470 | DIRECT VESSEL INJECTION (DVI) NOZZLE FOR MINIMUM EMERGENCY CORE COOLING (ECC) WATER BYPASS - A direct vessel injection (DVI) nozzle for minimum emergency core coolant (ECC) bypass is disclosed. The DVI nozzle is used in a pressurized light water reactor (PLWR) having a reactor vessel with a reactor coolant system in which a coolant flows into the reactor vessel through a cold leg and passes through a reactor core prior to being discharged to the outside of the reactor vessel through a hot leg. The DVI nozzle, provided to directly inject ECC into the reactor vessel to cool the reactor core during a break in the reactor coolant system, such as a cold leg break (CLB) that may occur in the PLWR, is placed on the reactor vessel at a position horizontally offset from the central axis of the hot leg at an angle of 10° to 30° and is involved within a region defined above the central axis of the hot leg by a distance of 1.5 times the sum of diameters of the hot leg and the DVI nozzle. Thus, the DVI nozzle efficiently injects ECC, and remarkably reduces the direct ECC bypass fraction to a broken cold leg and minimizes the amount of direct ECC bypass. | 09-09-2010 |
20100278294 | EMERGENCY CORE COOLING DUCT FOR EMERGENCY CORE COOLING WATER INJECTION OF A NUCLEAR REACTOR - The present invention relates to a longitudinally divided emergency core cooling (ECC) duct in order to efficiently inject safety water to core of a pressurized light-water nuclear reactor. The ECC duct includes side supports for preventing the flow-induced vibration in the annular downcomer, and has structural stability while thermally expanding and contracting. A longitudinally divided ECC duct for emergency core cooling water injection of a nuclear reactor is provided on the periphery of a core barrel of a nuclear reactor, includes an emergency core cooling water inlet facing a direct vessel injection nozzle, and extends in a longitudinal direction of the core barrel. The longitudinally divided ECC duct is divided into a plurality of longitudinally-divided ducts in the longitudinal direction of the longitudinally divided ECC duct. | 11-04-2010 |
20120263268 | PASSIVE HIGH PRESSURE SAFETY INJECTION TANK SYSTEM (HPSIT) FOR RESPONDING TO STATION BLACKOUT (SBO) AND LOSS-OF-COOLANT ACCIDENTS (LOCA) - A high pressure safety injection tank (HPSIT) system includes one safety injection tank (HIT) which replaces a core makeup tank (CMT) and a low pressure (approximately 4.3 Mpa or below) safety injection tank (SIT) and which can shift to and operate on a high pressure (approximately 17 Mpa) operation mode, to enable injection of emergency core coolant into a reactor system both under low pressure (approximately 4.3 Mpa or below) and high pressure (approximately 17 Mpa). | 10-18-2012 |
20130202075 | WATER-SPRAY RESIDUAL HEAT REMOVAL SYSTEM FOR NUCLEAR POWER PLANT - A residual heat removal system for a nuclear power plant. The residual heat removal system for a nuclear power plant may include an air duct provided on an outside of a reactor containment building, a heat exchanger disposed on an inside of the air duct, a first pipe to transfer, to the heat exchanger, steam generated in a steam generator disposed on an inside of the reactor containment building, and second pipe to transfer, to the steam generator, water condensation that is cooled and condensed in the heat exchanger, wherein the heat exchanger is air-cooled using outside air flowing inside of the air duct. | 08-08-2013 |
Patent application number | Description | Published |
20090059379 | OPTICAL FILM, MANUFACTURING METHOD OF THE SAME, AND DISPLAY DEVICE HAVING THE OPTICAL FILM - An optical film includes: a film body having a first surface formed with a groove pattern and a second surface formed with a bump pattern, which are formed in a single body; and a light absorption member formed inside the groove pattern. | 03-05-2009 |
20110032222 | PLASMA DISPLAY APPARATUS AND METHOD FOR PRODUCING PLASMA DISPLAY PANEL - A plasma display apparatus and a method for producing a plasma display panel are provided. The plasma display apparatus includes a panel which includes an upper panel coated with a functional material, and a lower panel located opposite a surface of the upper panel coated with the functional material, a driving circuit which drives the panel, and a base chassis on which the driving circuit is mounted. | 02-10-2011 |
20110127909 | PLASMA PANEL AND PLASMA DISPLAY APPARATUS - A plasma panel, a plasma display apparatus, and a method of forming a complex functional layer for the plasma panel are provided, the plasma panel including: a front glass substrate and a back glass substrate which form a plurality of discharge cells; and a complex functional layer which is formed on an external surface of the front glass substrate. The complex functional layer includes a base substance, an optical functional substance, and a polymer substance to improve a crashworthy property of the front glass substrate. | 06-02-2011 |
20130113781 | DISPLAY APPARATUS AND DRIVING METHOD THEREOF - A display apparatus is disclosed. The display apparatus includes a display panel having a scan electrode, a sustain electrode, and an address electrode, a driving unit which supplies a driving voltage to the scan electrode, the sustain electrode, and the address electrode so that each of a plurality of sub fields which form one frame include an address section and sustain section, and a control unit which controls the driving unit so that a width of the sustain pulse increases during the sustain section. | 05-09-2013 |
20130113849 | DISPLAY APPARATUS AND DRIVING METHOD THEREOF - A display apparatus is provided. A display apparatus includes a display panel which displays a 3D image with a left-eye image frame including a plurality of subfields and a right-eye image frame including a plurality of subfields, a driving unit which drives the display panel and a control unit which controls the driving unit to drive remaining subfields in advance as much as a subfield section of a plurality of subfields which are unused when an image having a grayscale level less than a predetermined value is being displayed. | 05-09-2013 |
20130169770 | SECURITY DISPLAY APPARATUS - A security display apparatus is provided including an image processor which reverses a normal image to create a reverse image which is a negative of the normal image, and a display unit which displays the normal image and the reverse image. The display apparatus further includes glasses which filter the reverse image such that the reverse image is blocked from a user by the glasses and the normal image is transmitted to the user through the glasses. | 07-04-2013 |
20140132586 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - A display apparatus including: a self-luminous display panel; an image processor which processes an image signal and displays an image on the display panel based on the processed image signal; and a controller which performs a reset operation to remove remaining electrons from the panel by discharging the panel at a preset interval while the image is displayed, and selectively performs a first reset operation and a second reset operation based on image information quantity of frames of the image displayed on the panel, wherein the first reset operation is performed to discharge the entire panel and the second reset operation is performed to sequentially discharge divided areas, into which the panel is divided, at the preset interval. | 05-15-2014 |