Patents by Inventor Junewoo KEE
Junewoo KEE 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: 11646124Abstract: The present invention relates to a prevention device for loss of coolant accident (LOCA) and a nuclear reactor having the same. The prevention device for LOCA includes a nozzle portion integrally formed in a reactor vessel and having a communication hole communicating with the inside of the reactor vessel, a nozzle finishing portion assembled to the nozzle portion and an injection line for injecting a fluid to the inside of the reactor vessel respectively on both sides thereof in a communicating manner, and a check valve mounting portion installed to be embedded inside the nozzle portion and having at least one check valve opened by flow such that the fluid is injected into the reactor vessel, wherein the check valve blocks outflow of a reactor coolant from the reactor vessel in case of failure of the injection line.Type: GrantFiled: August 23, 2018Date of Patent: May 9, 2023Assignees: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGYInventors: Youngin Kim, Seungyeob Ryu, Youngmin Bae, Joohyung Moon, Hunsik Han, Soojai Shin, Cheongbong Chang, Seok Kim, Junewoo Kee, Hyunjun Cho, Minkyu Lee, Juhyeon Yoon, Hyungi Yoon
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Patent number: 11391182Abstract: An external reactor vessel cooling and electric power generation system according to the present invention includes an external reactor vessel cooling section formed to enclose at least part of a reactor vessel with small-scale facilities so as to cool heat discharged from the reactor vessel, a power production section including a small turbine and a small generator to generate electric energy using a fluid that receives heat from the external reactor vessel cooling section, a condensation heat exchange section 140 to perform a heat exchange of the fluid discharged after operating the small turbine, and condense the fluid to generate condensed water, and a condensed water storage section to collect therein the condensed water generated in the condensation heat exchange section, wherein the fluid is phase-changed into gas by the heat received from the reactor vessel.Type: GrantFiled: May 14, 2018Date of Patent: July 19, 2022Assignees: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGYInventors: Youngin Kim, Youngmin Bae, Hunsik Han, Cheongbong Chang, Junewoo Kee, Minkyu Lee, Bonghyun Cho, Kisun Park
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Patent number: 11348699Abstract: A safety injection device includes, a cooling water storage section accommodating cooling water injected into the reactor coolant system, a power producing section producing power with steam discharged from the reactor coolant system in case of an accident, a steam supply pipe transmitting steam discharged from the reactor coolant system to the power producing section, a steam discharge pipe discharging steam used to drive the power producing section and a safety injection line supplying cooling water accommodated in the cooling water storage section to the inside of the reactor coolant system. In addition, cooling water accommodated in the cooling water storage section is supplied to the inside of the reactor coolant system, based on the power produced by the power producing section, through a cooling water inlet pipe connecting the cooling water storage section and the power producing section.Type: GrantFiled: August 31, 2018Date of Patent: May 31, 2022Assignees: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGYInventors: Youngin Kim, Hyungi Yoon, Seungyeob Ryu, Youngmin Bae, Joohyung Moon, Hunsik Han, Soojai Shin, Cheongbong Chang, Seok Kim, Junewoo Kee, Hyunjun Cho, Minkyu Lee, Bonghyun Cho
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Patent number: 11302452Abstract: A reactor cooling and power generation system according to the present disclosure includes a reactor vessel, a heat exchange section formed to receive heat generated from a core inside the reactor vessel, from a feedwater system through a fluid, and an electric power production section. A Stirling engine is provided to produce electric energy using the energy of the fluid whose temperature has increased while receiving the heat of the reactor. The system is formed to circulate the fluid that has received heat from the core in the heat exchange section through the electric power production section. The system operates even during a normal operation and during an accident of the nuclear power plant. The reactor cooling and power generation system accompanies a nuclear reactor vessel which includes a reactor coolant system, a feedwater system and a steam generator. A turbine produces electric power from the feed water system.Type: GrantFiled: June 11, 2018Date of Patent: April 12, 2022Assignees: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGYInventors: Youngin Kim, Youngmin Bae, Hunsik Han, Cheongbong Chang, Junewoo Kee, Minkyu Lee, Kisun Park, Bonghyun Cho
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Publication number: 20210375497Abstract: The present invention relates to a prevention device for loss of coolant accident (LOCA) and a nuclear reactor having the same. The prevention device for LOCA includes a nozzle portion integrally formed in a reactor vessel and having a communication hole communicating with the inside of the reactor vessel, a nozzle finishing portion assembled to the nozzle portion and an injection line for injecting a fluid to the inside of the reactor vessel respectively on both sides thereof in a communicating manner, and a check valve mounting portion installed to be embedded inside the nozzle portion and having at least one check valve opened by flow such that the fluid is injected into the reactor vessel, wherein the check valve blocks outflow of a reactor coolant from the reactor vessel in case of failure of the injection line.Type: ApplicationFiled: August 23, 2018Publication date: December 2, 2021Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGYInventors: Youngin KIM, Seungyeob RYU, Youngmin BAE, Joohyung MOON, Hunsik HAN, Soojai SHIN, Cheongbong CHANG, Seok KIM, Junewoo KEE, Hyunjun CHO, Minkyu LEE, Juhyeon YOON, Hyungi YOON
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Publication number: 20200335232Abstract: A safety injection device includes a containment building, a reactor coolant system provided inside the containment building and accommodating a reactor coolant formed to carry heat energy generated according to fission of fuel, a cooling water storage section accommodating cooling water injected into the reactor coolant system, a power producing section producing power with steam discharged from the reactor coolant system in case of an accident, a steam supply pipe transmitting steam discharged from the reactor coolant system to the power producing section, a steam discharge pipe discharging steam drove the power producing section and a safety injection line supplying cooling water accommodated in the cooling water storage section to the inside of the reactor coolant system.Type: ApplicationFiled: August 31, 2018Publication date: October 22, 2020Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGYInventors: Youngin KIM, Hyungi YOON, Seungyeob RYU, Youngmin BAE, Joohyung MOON, Hunsik HAN, Soojai SHIN, Cheongbong CHANG, Seok KIM, Junewoo KEE, Hyunjun CHO, Minkyu LEE, Bonghyun CHO
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Publication number: 20200141351Abstract: A reactor cooling and power generation system according to the present disclosure may include a reactor vessel, a heat exchange section formed to receive heat generated from a core inside the reactor vessel through a fluid, and an electric power production section including a Sterling engine formed to produce electric energy using the energy of the fluid whose temperature has increased while receiving the heat of the reactor, wherein the system is formed to circulate the fluid that has received heat from the core in the heat exchange section through the electric power production section, and operate even during a normal operation and during an accident of the nuclear power plant to produce electric power. Furthermore, the reactor cooling and power generation system according to the present disclosure may be continuously operated not only during a normal operation but also during an accident to perform reactor cooling, and produce emergency power, thereby improving the system reliability.Type: ApplicationFiled: June 11, 2018Publication date: May 7, 2020Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGYInventors: Youngin KIM, Youngmin BAE, Hunsik HAN, Cheongbong CHANG, Junewoo KEE, Minkyu LEE, Kisun PARK, Bonghyun CHO
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Publication number: 20200072087Abstract: An external reactor vessel cooling and electric power generation system according to the present invention includes an external reactor vessel cooling section formed to enclose at least part of a reactor vessel with small-scale facilities so as to cool heat discharged from the reactor vessel, a power production section including a small turbine and a small generator to generate electric energy using a fluid that receives heat from the external reactor vessel cooling section, a condensation heat exchange section 140 to perform a heat exchange of the fluid discharged after operating the small turbine, and condense the fluid to generate condensed water, and a condensed water storage section to collect therein the condensed water generated in the condensation heat exchange section, wherein the fluid is phase-changed into gas by the heat received from the reactor vessel.Type: ApplicationFiled: May 14, 2018Publication date: March 5, 2020Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGYInventors: Youngin KIM, Youngmin BAE, Hunsik HAN, Cheongbong CHANG, Junewoo KEE, Minkyu LEE, Bonghyun CHO, Kisun PARK