Results 1 to 10 of about 4,167 (263)

Thermochemical Modeling of Metal Composition and Its Impact on the Molten Corium–Concrete Interaction: New Insights with Sensitivity Analysis

Energies, 2022
The characterization of molten corium–concrete interaction (MCCI) has increasingly become a cause of concern because, in the case of a severe nuclear accident, the core could meltdown and release radiation into the environment.
Imran Afgan, Yacine Addad, Ilyas Khurshid   +2 more
exaly   +3 more sources

Corium Experimental Thermodynamics: A Review and Some Perspectives

Thermo, 2021
More than 30 years ago a specialist meeting was held at Joint Research Center Ispra (Italy) from 15 to 17 January 1990 to review the current understanding of chemistry during severe accidents in light water reactors (LWR).
Marc Barrachin
exaly   +3 more sources

Modeling corium pool stratification and focusing effect in APR1400 using a multiphase CFD framework [PDF]

Scientific Reports
Accurately 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, Ahmed Alkaabi, Yacine Addad   +2 more
doaj   +2 more sources

Comparison of Melted Corium Relocation during Severe Accident of High Temperature Reactor using Moving Particle Semi-Implicit Method

Computational and Experimental Research in Materials and Renewable Energy, 2023
System failure in nuclear reactors can cause degradation of a reactor core, allowing melting and relocation of the corium to the lower plenum in the nuclear reactor system.
Muhamad Irfan, Ismail Humolungo, Asril Pramutadi Andi Mustari, Sidik Permana   +3 more
doaj   +1 more source

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, MIN Jinkun, ZHANG Li, YUAN Yidan   +3 more
doaj   +1 more source

On the Possibility of Forming a Corium Pool by Induction Heating in a Melt Trap of the Lava-B Facility

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, Viktor Baklanov, Assan Akaev, Ivan Kukushkin, Maxat Bekmuldin, Kuanyshbek Toleubekov, Alexandr Gradoboev, Olga Stepanova   +7 more
doaj   +1 more source

Neutronic modeling of a subcritical system with corium particles and water (from international benchmark) [PDF]

Nuclear Energy and Technology, 2020
After the accident at the Fukushima Daiichi NPP, the attention of the scientific community is riveted on how the consequences are being eliminated. Removing corium – a lava-like resolidified mixture of nuclear fuel with other structural elements of the ...
Anton D. Smirnov, Ekaterina V. Bogdanova, Pavel A. Pugachev, Ivan S. Saldikov, Mikhail Yu. Ternovykh, Georgy V. Tikhomirov, Hiroki Takezawa, Takeshi Muramoto, Jun Nishiyama, Toru Obara   +9 more
doaj   +3 more sources

THE METHOD OF CORIUM COOLING IN A CORE CATCHER OF A LIGHT-WATER NUCLEAR REACTOR

Eurasian Physical Technical Journal, 2022
During the development of a severe accident at nuclear power plant with a core melting, corium is formed. One of the main barriers preventing outflow of corium into the environment is a melt localization device or a melt trap.
М.K. Skakov, K.O. Toleubekov, V.V. Baklanov, А.V. Gradoboev, A.S. Akayev, M.K. Bekmuldin   +5 more
doaj   +1 more source

Density Measurement of Molten Drop With Aerodynamic Levitation and Laser Heating

Frontiers in Energy Research, 2022
Thermophysical properties of molten core materials (corium) are necessary input parameters of models and computer codes which predict the severe accident progression in light water reactors. The corium contains the components of UO2, ZrO2, Zr and Fe. The
Yaopeng Gong, Yaopeng Gong, Li Zhang, Yidan Yuan, Qiang Guo, Weimin Ma, Shanfang Huang   +6 more
doaj   +1 more source

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., Cavaro M., Rey F., Paumel K., Chikhi N., Delacroix J., Fouquart P., Le Tellier R., Bouyer V.   +8 more
doaj   +1 more source