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VVER-1000 reactor vessel metal state monitoring in Ukraine [PDF]

Ядерна фізика та енергетика, 2011
On the basis of the “hot” cells of the Institute for Nuclear Research of National Academy of Sciences of Ukraine reconstitution technique of VVER reactor vessel metal surveillance specimens, and the main provisions of the reactor vessel radiation ...
V. M. Bukanov, I. M. Vyshnevskyi, M. I. Vlasenko, P. G. Lytovchenko, L. I. Chyrko   +4 more
doaj   +1 more source

Hygro-Thermo-Mechanical Analysis of a Reactor Vessel [PDF]

Acta Polytechnica, 2012
Determining the durability of a reactor vessel requires a hygro-thermo-mechanical analysis of the vessel throughout its service life. Damage, prestress losses, distribution of heat and moisture and some other quantities are needed for a durability ...
Jaroslav Kruis, Tomáš Koudelka, Tomáš Krejčí   +2 more
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Technical characteristics and Key Issues Analysis of Radioisotope Irradiation Production by Vessel-in-pool Type Research Reactor

Journal of Isotopes
Vessel-in-pool type reactors offer significant advantages in the irradiation production of various radioisotopes，including rare nuclides，medical isotopes，and industrial isotopes，due to their high neutron flux，strong irradiation capability，and versatility，
Jian LI, Lei SHI, Zhihong LIU, Heng XIE
doaj   +1 more source

Studies on Key Effect Factors of Natural Circulation Characteristics for Advanced PWR Reactor Cavity Flooding System

Science and Technology of Nuclear Installations, 2020
In order to enhance the ability of severe accident mitigation for Pressurised Water Reactor (PWR), different kinds of severe accident mitigation strategies have been proposed.
Dekui Zhan, Xinhai Zhao, Shaoxiong Xia, Peng Chen, Huandong Chen   +4 more
doaj   +1 more source

Analysis of the flow distribution and mixing characteristics in the reactor pressure vessel

Nuclear Engineering and Technology, 2021
The analysis of the fluid flow characteristics in reactor pressure vessel is an important part of the hydraulic design of nuclear power plant, which is related to the structure design of reactor internals, the flow distribution at core inlet and the ...
L.L. Tong, L.Q. Hou, X.W. Cao
doaj   +1 more source

Development of fracture toughness curve for PTS evaluation of reactor pressure vessels incorporating Master curve concept

Nihon Kikai Gakkai ronbunshu, 2019
The reactor pressure vessel is made of ferritic low alloy steel, which has fracture behaviors that include ductile to brittle transition temperature and decrease of fracture toughness in the beltline region of the reactor pressure vessel steel due to ...
Takatoshi HIROTA, Kentaro YOSHIMOTO
doaj   +1 more source

Source Term Estimation under the SBLOCA-Induced Severe Accident Condition in the SMART

Science and Technology of Nuclear Installations, 2021
The SMART is a system-integrated modular reactor in which a nuclear steam supply system with a thermal power of 365 MW is contained inside of the reactor vessel.
Jaehyun Ham, Sang Ho Kim, Sung Il Kim, Byeonghee Lee, Jong-Hwa Park, Rae-Joon Park, Jaehoon Jung   +6 more
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Spinodal decomposition and radiation damage of a FeCuMnNi high-entropy alloy

Nuclear Materials and Energy, 2023
The precipitation of Cu-rich phases during the irradiation process will reduce radiation resistance in Fe-Cu-Mn-Ni reactor pressure vessel steels. Therefore, high-entropy alloys with excellent radiation resistance are expected to replace reactor pressure
Qingwei Guo, Jinzhong Tian, Xiaotao Xu, Hua Hou, Peter K. Liaw, Yuhong Zhao   +5 more
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Numerical simulation on in-vessel molten corium behavior with external vessel cooling using smoothed particle hydrodynamics

Nuclear Engineering and Technology
The in-vessel retention through external reactor vessel cooling (IVR-ERVC) strategy is a key management strategy for early termination of a nuclear severe accident that can threaten the integrity of the reactor vessel.
Tae Hoon Lee, Yeon-Gun Lee, Kukhee Lim, Yun-Jae Kim, So-Hyun Park, Eung Soo Kim   +5 more
doaj   +1 more source

Remote Monitoring of Equipment in Small Modular Reactors

Chemical Engineering Transactions, 2013
Small Modular Reactors (SMR) are being developed by several vendors for remote deployment and for small grid applications. These reactors have the additional advantage of load-following, process heat application, and improved safeguards features.
B. Upadhyaya, C. Mehta, V. Lollar, W. Hines J   +3 more
doaj   +1 more source