Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Kyungha Ryu"'
Publikováno v:
대한환경공학회지, Vol 46, Iss 8, Pp 420-428 (2024)
Objectives This study aims to introduce and evaluate the effectiveness of asymmetric membrane capacitive deionization (ACDI) in removing short-chain perfluoroalkyl substances (PFAS), specifically perfluorobutane sulfonic acid (PFBS), from aqueous sol
Externí odkaz:
https://doaj.org/article/17ed6c07485d4c739d9a5e6a40914a4f
Autor:
Inyoung Song, Taehyun Lee, Kyungha Ryu, Yong Jin Kim, Myung Sung Kim, Jong Won Park, Ji Hyun Kim
Publikováno v:
Nuclear Engineering and Technology, Vol 54, Iss 12, Pp 4514-4521 (2022)
In this study, the effects of heat and radiation on the degradation behaviour of fluoroelastomer under simulated normal operation and a severe accident environment were investigated using sequential testing of gamma irradiation and thermal degradatio
Externí odkaz:
https://doaj.org/article/6b95c4f911b3467488631cec16fc961e
Publikováno v:
Nuclear Engineering and Technology, Vol 52, Iss 4, Pp 784-790 (2020)
The accelerated corrosion by Flow Accelerated Corrosion (FAC) has caused unexpected rupture of piping, hindering the safety of nuclear power plants (NPPs) and sometimes causing personal injury. For the safety, it may be necessary to select some pipes
Externí odkaz:
https://doaj.org/article/f6c328b5727a4336887ff1828bbbe809
Publikováno v:
Nuclear Engineering and Technology, Vol 50, Iss 5, Pp 683-689 (2018)
To evaluate equipment survivability of the polymer Viton, used in sealing materials, the effects of its thermal degradation were investigated in severe accident (SA) environment in a nuclear power plant. Viton specimens were prepared and thermally de
Externí odkaz:
https://doaj.org/article/3230233692324861a087559575fb737c
Autor:
Songho Lee, Taehyun Lee, Jeongyeong Kim, Jongjik Lee, Kyungha Ryu, Yongjin Kim, Jong-Won Park
Publikováno v:
Processes; Volume 10; Issue 8; Pages: 1468
With the development of the Internet of things, big data, and AI leading the 4th industrial revolution, it has become possible to acquire, manage, and analyze vast and diverse condition signals from various industrial machinery facilities. In additio
Publikováno v:
Nuclear Engineering and Technology, Vol 53, Iss 1, Pp 304-313 (2021)
Nickel base Alloy X-750, which is used as fastener parts in light-water reactor (LWR), has experienced many failures by environmentally assisted cracking (EAC). In order to improve the reliability of passive components for nuclear power plants (NPP's
Publikováno v:
Journal of Applied Reliability. 19:334-342
Publikováno v:
Journal of Applied Reliability. 19:367-373
Autor:
Kyungha Ryu, Min-Ho Lee, Sungyeol Choi, Hong Deok Kim, Ji Hyun Kim, Tae Hyun Lee, Il Soon Hwang
Publikováno v:
Nuclear Engineering and Technology, Vol 51, Iss 5, Pp 1381-1389 (2019)
Stress corrosion cracking (SCC) widely found in both primary and secondary sides of steam generator (SG) tubing in pressurized water reactors (PWR) has become an important safety issue. Using eddy-current tests (ECTs), non-destructive evaluations are
Autor:
Sung-ho Ko, Sang Huk Lee, Ji Hyun Kim, Tae Hyun Lee, Kyungha Ryu, Jeonghyeon Lee, Jaehyun Cho, Byoung Min Ban
Publikováno v:
International Journal of Thermal Sciences. 132:316-321
In advanced small modular reactors, a natural circulation system with liquid metal is preferred, as it offers enhanced safety features, simplicity of reactor design, and is economical with respect to construction. A natural circulation system also pr