Results 1 to 10 of about 313 (139)
Modeling corium pool stratification and focusing effect in APR1400 using a multiphase CFD framework [PDF]
Scientific ReportsAccurately predicting molten corium behavior is critical for assessing severe accident scenarios in nuclear reactors, particularly under In-Vessel Corium Retention with Reactor Vessel External Cooling (IVCR-RVEC) strategies.
Kamran Mahboob +2 more
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Numerical Study on the Corium Pool Heat Transfer With OpenFOAM [PDF]
Frontiers in Energy Research, 2020 In order to ensure the successful implementation of in-vessel retention strategy to terminate molten corium pool evolution, it is necessary to evaluate the heat flux distribution on the lower head wall of reactor pressure vessel.
Zhiguo Xi +9 more
doaj +2 more sources
Simulation study on COPRA corium pool based on COMSOL
He jishu, 2021 BackgroundCOMSOL is considered to be an ideal approach to study the complicated physical processes in the corium pool because of its good simulation ability in multiphysics field.PurposeThis study aims to build a computational model by COMSOL to explore ...
ZHU Guangyu +3 more
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Heat transfer characteristics of single-layer and two-layer corium pool in elliptical lower head
International Journal of Advanced Nuclear Reactor Design and Technology, 2022 In this study, we investigated the characteristics of natural convection heat transfer of single-layer and two-layer corium pool in the elliptical lower head by the numerical method.
Y W Wu, W X Tian
exaly +3 more sources
Numerical simulation on heat transfer in RPV lower head corium pools
He jishu, 2022 BackgroundIn-vessel Retention (IVR) refers to the prevention of pressure vessel melt-through failure by injecting cooling water into the gap between the pressure vessel and the heat insulation layer during a serious accident in a nuclear power plant ...
ZHU Guangyu +4 more
doaj +2 more sources
Study of online measurements techniques of metallic phase spatial distribution into a corium pool [PDF]
EPJ Web of Conferences, 2020 In the context of in-vessel retention (IVR) strategy in order to better assess the risk of reactor vessel failure, the knowledge related to the kinetics of immiscible liquid phases stratification phenomenon needs to be further improved.
Tisseur D. +8 more
doaj +2 more sources
Nuclear Engineering and Design, 2020 During Severe Accidents (SAs) in Light Water Reactors (LWRs), the core heat up due to the lack of fuel cooling in the Reactor Pressure Vessel (RPV) may lead to the formation of a so called corium pool (molten core oxidic and metallic liquid materials) relocating in the lower head of the RPV. Within the framework of SA, one strategy to minimize risks of
R Le Tellier
exaly +2 more sources
Modeling of the corium jet penetration into the pool of volatile coolant under reactor vessel [PDF]
Ядерна фізика та енергетика, 2010 Developed mathematical model and some results of its application to the element of the passive protection system against severe accidents at NPP with water pool under reactor vessel for corium melt and particles’ cooling are presented.
V. H. Moghaddam, I. V. Kazachkov
doaj +2 more sources
Frontiers in Nuclear EngineeringTo better understand the application of IVR (In-Vessel Retention), extensive experiments have been conducted on the heat transfer characteristics of molten pool.
Shihao Wu, Wenxi Tian, Suizheng Qiu
exaly +3 more sources
Applied Sciences, 2023 This paper presents the results of computational and physical studies on the production of corium and its retention in an MR’s melt trap of the Lava-B facility.
Mazhyn Skakov +7 more
doaj +1 more source