Patents by Inventor Sung-Jae Yi
Sung-Jae Yi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11942227Abstract: A passive cooling system for a nuclear reactor includes an energy release space in which a reactor vessel is accommodated, an energy absorbing space separated from the energy release space, and an energy transfer space above the energy absorbing space and configured to absorb and cool heat transferred from the reactor vessel and discharge the absorbed heat to an outside of the system through an outer wall thereof. The passive cooling system further includes a first cooling flow path configured to transfer the heat in the reactor vessel to the energy transfer space, a pressure balance pipe configured to transfer the pressure in the energy release space to the energy absorbing space therethrough, and a coolant spray pipe configured to transfer the cooling water in the energy absorbing space pressurized by the pressure balance pipe to the energy transfer space may be provided.Type: GrantFiled: September 1, 2020Date of Patent: March 26, 2024Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventors: Sung-jae Yi, Hyun Sik Park
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Publication number: 20210225535Abstract: A heat transferring device includes a pumping structure, and more specifically, a heat transferring device having a pumping structure, in which a working fluid of a cooling part is movable in an upward direction without a separate power source, and capable of using gravity while recovering the working fluid, and applying various heat sources to a heating part. To this end, a heat transferring device includes a heating part configured to heat a liquid working fluid and change the liquid working fluid to a gas state, a cooling part configured to cool the gaseous working fluid supplied from the heating part and change the gaseous working fluid to a liquid state, a pressurizing part configured to allow the heating part and the cooling part to communicate with each other so that the gaseous working fluid pressurizes the liquid working fluid, and a recovery part configured to move the liquid working fluid supplied from the cooling part to the heating part.Type: ApplicationFiled: November 29, 2018Publication date: July 22, 2021Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventors: Sung-Jae YI, Sung Uk RYU, Hyun Sik PARK, Ki Yong CHOI
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Publication number: 20210174977Abstract: The present invention relates to a passive infinite cooling system for a nuclear reactor and a method of operating the same. The system includes an energy release space in which a reactor vessel is accommodated, an energy absorbing space separated from the energy release space, an energy transfer space, which is provided above the energy absorbing space, absorbs and cools heat transferred from the reactor vessel, and discharges the absorbed heat to the outside through an outer wall thereof, a first cooling flow path through which the heat in the reactor vessel is transferred to the energy transfer space, a pressure balance pipe through which the pressure in the energy release space is transferred to the energy absorbing space, and a coolant spray pipe through which the cooling water in the energy absorbing space pressurized by the pressure balance pipe is transferred to the energy transfer space.Type: ApplicationFiled: September 1, 2020Publication date: June 10, 2021Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventors: Sung-Jae YI, Hyun Sik PARK
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Patent number: 10991469Abstract: There is provided a cooling apparatus for a molten core material, including: two or more cooling material containers disposed under a reactor vessel including a nuclear reactor core and including a cooling material therein; a first screen disposed under the two or more cooling material containers and including two or more first through-holes; and a second screen disposed under the first screen and including two or more second through-holes, wherein an average size of the two or more first through-holes is greater than an average size of the two or more second through-holes.Type: GrantFiled: March 12, 2019Date of Patent: April 27, 2021Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventors: Sung-Jae Yi, Hyun Sik Park, Rae-Joon Park, Ki Yong Choi, Kwang Soon Ha, Seong-Wan Hong
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Patent number: 10811148Abstract: The application provides a self-diagnosis and accident-handling unmanned nuclear reactor, which: can passively cool down excessively generated heat without an operation of an operator when a malfunction of the nuclear reactor has occurred, wherein a cooling operation for safety measures can be carried out in a completely passive manner without a separate control command by a change in environmental conditions such as the structure and pressure of the nuclear reactor; and has a simpler structure compared to that of a conventional nuclear reactor safety system. It also provides a self-diagnosis and accident-handling unmanned nuclear reactor, which performs heat exchange by using a two-phase heat transfer mechanism, wherein heat exchange performance is maximized by introducing a spray-type heat exchanger having an optimized structure in which channels are three-dimensionally arranged, and can also easily and passively control heat exchange without a separate control means by using saturated steam pressure.Type: GrantFiled: April 15, 2016Date of Patent: October 20, 2020Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventor: Sung-Jae Yi
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Publication number: 20200075183Abstract: There is provided a cooling apparatus for a molten core material, including: two or more cooling material containers disposed under a reactor vessel including a nuclear reactor core and including a cooling material therein; a first screen disposed under the two or more cooling material containers and including two or more first through-holes; and a second screen disposed under the first screen and including two or more second through-holes, wherein an average size of the two or more first through-holes is greater than an average size of the two or more second through-holes.Type: ApplicationFiled: March 12, 2019Publication date: March 5, 2020Inventors: Sung-Jae YI, Hyun Sik PARK, Rae-Joon PARK, Ki Yong CHOI, Kwang Soon HA, Seong-Wan HONG
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Patent number: 10134493Abstract: Provided are a nuclear reactor and an operating method for the reactor. The reactor includes a driving system and a safety system. The safety system includes isolation vessels, heat exchangers, a coolant pipe, and a communication pipe. Fluid is distributed in the safety system according to thermal, pressure, and leak conditions.Type: GrantFiled: August 10, 2015Date of Patent: November 20, 2018Assignee: Korea Atomic Energy Research InstituteInventors: Sung-Jae Yi, Chul-Hwa Song, Hyun Sik Park, Sung Won Bae, Rae-Joon Park
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Patent number: 10115488Abstract: The present invention provides passive safety equipment, comprising: a cooling part formed to cool a first fluid, which is emitted from a reactor coolant system or a steam generator, and a second fluid in a housing; and a circulation induction sprayer which is formed to spray the first fluid emitted from the reactor coolant system or the steam generator into the cooling part, has at least part thereof open to the inside of the housing such that the second fluid flows thereinto according to a drop in pressure caused by the spraying of the first fluid, and sprays the second fluid with the inflown first fluid.Type: GrantFiled: October 2, 2014Date of Patent: October 30, 2018Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventors: Hun Sik Han, Young In Kim, Kyung Jun Kang, Sung Jae Yi, Keung Koo Kim, Ju Hyeon Yoon, Jae Joo Ha, Suhn Choi, Cheon Tae Park, Seung Yeob Ryu, Joo Hyung Moon
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Publication number: 20180061514Abstract: The application provides a self-diagnosis and accident-handling unmanned nuclear reactor, which: can passively cool down excessively generated heat without an operation of an operator when a malfunction of the nuclear reactor has occurred, wherein a cooling operation for safety measures can be carried out in a completely passive manner without a separate control command by a change in environmental conditions such as the structure and pressure of the nuclear reactor; and has a simpler structure compared to that of a conventional nuclear reactor safety system. It also provides a self-diagnosis and accident-handling unmanned nuclear reactor, which performs heat exchange by using a two-phase heat transfer mechanism, wherein heat exchange performance is maximized by introducing a spray-type heat exchanger having an optimized structure in which channels are three-dimensionally arranged, and can also easily and passively control heat exchange without a separate control means by using saturated steam pressure.Type: ApplicationFiled: April 15, 2016Publication date: March 1, 2018Inventor: Sung-Jae YI
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Publication number: 20160247585Abstract: The present invention provides passive safety equipment, comprising: a cooling part formed to cool a first fluid, which is emitted from a reactor coolant system or a steam generator, and a second fluid in a housing; and a circulation induction sprayer which is formed to spray the first fluid emitted from the reactor coolant system or the steam generator into the cooling part, has at least part thereof open to the inside of the housing such that the second fluid flows thereinto according to a drop in pressure caused by the spraying of the first fluid, and sprays the second fluid with the inflown first fluid.Type: ApplicationFiled: October 2, 2014Publication date: August 25, 2016Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTEInventors: Hun Sik HAN, Young In KIM, Kyung Jun KANG, Sung Jae YI, Keung Koo KIM, Ju Hyeon YUN, Jae Joo HA, Suhn CHOI, Cheon Tae PARK, Seung Yeob RYU, Joo Hyung MOON
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Publication number: 20160042816Abstract: Provided are a reactor and an operating method for the reactor, and more particularly, a reactor which may passively cool excessively generated heat without an operation of an operator at the time of abnormality of the reactor, completely passively perform the cooling operation for safety procedures by a structure of the reactor and a change in environmental conditions such as a pressure, etc., without a separate control command, and have a simpler structure than the existing reactor safety system, and an operating method for the reactor.Type: ApplicationFiled: August 10, 2015Publication date: February 11, 2016Inventors: Sung-Jae Yi, Chul-Hwa Song, Hyun Sik Park, Sung Won Bae, Rae-Joon Park