Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Man gyun Na"'
Autor:
Ji Hun Park, Man Gyun Na
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 10, Pp 4149-4157 (2024)
Welding processes are used to connect several components in nuclear power plants. These welding processes can induce residual stress in welding joints, which has been identified as a significant factor in primary water stress corrosion cracking. Cons
Externí odkaz:
https://doaj.org/article/cc5cff91b0dc44c38d8c5f41807a6ab6
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 9, Pp 3594-3601 (2024)
It is difficult to detect a small-scale leakage in a nuclear power plant (NPP) quickly and take appropriate action. Delaying these procedures can have adverse effects on NPPs. In this paper, we propose leak flow rate prediction using the bidirectiona
Externí odkaz:
https://doaj.org/article/bd95f7abfdb64c0c8515bf6fcc9dac70
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 8, Pp 3167-3179 (2024)
In abnormal states of nuclear power plants (NPPs), operators undertake mitigation actions to restore a normal state and prevent reactor trips. However, in abnormal states, the NPP condition fluctuates rapidly, which can lead to human error. If human
Externí odkaz:
https://doaj.org/article/1be101185e174ca39f904b634e8f4b66
Publikováno v:
Nuclear Engineering and Technology, Vol 54, Iss 4, Pp 1271-1287 (2022)
When abnormal operating conditions occur in nuclear power plants, operators must identify the occurrence cause and implement the necessary mitigation measures. Accordingly, the operator must rapidly and accurately analyze the symptom requirements of
Externí odkaz:
https://doaj.org/article/2cab5652cc5248159ae3ce8ddd99aee3
Publikováno v:
Nuclear Engineering and Technology, Vol 53, Iss 12, Pp 4014-4021 (2021)
If safety injection systems (SISs) do not work in the event of a loss-of-coolant accident (LOCA), the accident can progress to a severe accident in which the reactor core is exposed and the reactor vessel fails. Therefore, it is considered that a tec
Externí odkaz:
https://doaj.org/article/ee9d52f9c067437d93b4667dadbf1f89
Publikováno v:
Nuclear Engineering and Technology, Vol 53, Iss 8, Pp 2547-2555 (2021)
The frequency of reactor coolant leakage is expected to increase over the lifetime of a nuclear power plant owing to degradation mechanisms, such as flow-acceleration corrosion and stress corrosion cracking. When loss of coolant accidents (LOCAs) occ
Externí odkaz:
https://doaj.org/article/5a346c19860241cc8741db3e141f4bee
Publikováno v:
Nuclear Engineering and Technology, Vol 51, Iss 3, Pp 723-730 (2019)
Acquiring instrumentation signals generated from nuclear power plants (NPPs) is essential to maintain nuclear reactor integrity or to mitigate an abnormal state under normal operating conditions or severe accident circumstances. However, various safe
Externí odkaz:
https://doaj.org/article/6551099d838649818fa727e4e314154a
Publikováno v:
Nuclear Engineering and Technology, Vol 50, Iss 4, Pp 562-569 (2018)
Recently, human errors have very rarely occurred during power generation at nuclear power plants. For this reason, many countries are conducting research on smart support systems of nuclear power plants. Smart support systems can help with operator d
Externí odkaz:
https://doaj.org/article/c1403fbb185646b3b0ee9206ca2087c3
Publikováno v:
Nuclear Engineering and Technology, Vol 49, Iss 4, Pp 817-824 (2017)
Residual stress is a critical element in determining the integrity of parts and the lifetime of welded structures. It is necessary to estimate the residual stress of a welding zone because residual stress is a major reason for the generation of prima
Externí odkaz:
https://doaj.org/article/5b3e60bf35e74c4d8d5c99315ac449bb
Publikováno v:
Nuclear Engineering and Technology, Vol 49, Iss 3, Pp 495-503 (2017)
Operators of nuclear power plants may not be equipped with sufficient information during a loss-of-coolant accident (LOCA), which can be fatal, or they may not have sufficient time to analyze the information they do have, even if this information is
Externí odkaz:
https://doaj.org/article/c3f4acff31674db7b33141c38420a84b