Accident Management in VVER-1000 [PDF]
The present paper deals with the investigation study on accident management in VVER-1000 reactor type conducted in the framework of a European Commission funded project. The mentioned study involved both experimental and computational fields. The purpose
F. D'Auria +4 more
doaj +5 more sources
Evaluating machine learned nuclear data precision in full core nuclear reactor Monte Carlo neutronics and computational efficiency analyses [PDF]
This study evaluates the novel machine learning based reduction of cross-sections and energy grid of continuous-energy nuclear data for one year full core Monte Carlo criticality and burn-up analysis using OpenMC.
Alexander Hashemi +2 more
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Estimation of material degradation of VVER-1000 baffle [PDF]
The planned lifetime of the first commercial VVER-1000 units were designed for 30 to 35 years. Most of the early VVER plants are now reaching and/or passing the 35-year mark.
Harutyunyan Davit +5 more
doaj +2 more sources
Ultrasonic monitoring of the VVER-1000 FA form change [PDF]
A procedure has been developed to determine the geometrical parameters of fuel assemblies (FA) by an ultrasonic pulse-echo technique used for all types of light-water reactor FAs. The measurement of geometrical parameters is achieved through the pairwise
Aleksandra V. Voronina +2 more
doaj +5 more sources
The specific configuration of the safety systems in VVER-1000/V320 reactors allows a comprehensive study of the Loss of Coolant Accident (LOCA). In the present paper, a verification of the success criteria of the event trees headers for the medium and ...
Elena Redondo-Valero +3 more
doaj +3 more sources
In-service change in the flexural rigidity of the VVER-1000 fuel assemblies [PDF]
In-service dimensional stability of the VVER-1000 reactor fuel assemblies (FA) depends to a great extent on their flexural rigidity. A decrease in the flexural rigidity in the process of the FA operation in the reactor may lead to such FA bowing as will ...
S.V. Pavlov
doaj +2 more sources
Neutronic calculations for the VVER-1000 MOX core computational benchmark using the OpenMC code [PDF]
The goal of this study is to perform neutronic calculations of the VVER-1000 MOX core computational benchmarks with an OpenMC code along with ENDF/B-VII.1 nuclear data library.
Md Imtiaj Hossain +3 more
doaj +3 more sources
Calculation of radiation fields in the VVER-1000 concrete biological shield using Monte Carlo code Serpent [PDF]
To calculate radiation fields in the concrete biological shield (CBS) of the VVER-1000 reactor in this work, we have developed and applied the Monte Carlo code Serpent simulation framework based on the variance reduction technique. We have quantified the
O. M. Khotiaintseva +5 more
doaj +1 more source
Validation of the MCNP model of formation of the background wires current of the self-powered neutron detectors of VVER-1000 [PDF]
The article presents the results of the numerical simulation of the signal formation process of the background wires of self-powered neutron detectors (SPND) under the action of gamma radiation in the VVER-1000 core using MCNP code. The validation of the
V. I. Borysenko, V. V. Goranchuk
doaj +1 more source
VVER-1000 reactor model using the Serpent 2 code for core power distribution calculation [PDF]
A VVER-1000 reactor model using the Monte Carlo Serpent 2 code for core power distribution calculation is presented. The core and zones located near to the core were modeled in detail, without simplification.
V. V. Ilkovych
doaj +1 more source

