Reactor core
Stability and bifurcation analysis of sodium boiling in a GEN IV SFR reactor core
... Our research aims at developing an innovative methodology with respect to the nuclear safety context, based on stability and bifurcation analysis through a semi-analytical procedure. Thanks to such semi-analytical ...
11
Modeling of reflood of severely damaged reactor core
... to reactor scale debris ...and reactor core height of a few meters, the initial temperature at the upper part of the bed can significantly ...
220
Direct Meta-Analyses Reveal Unexpected Microbial Life in the Highly Radioactive Water of an Operating Nuclear Reactor Core
... Nuclear reactor installations also primarily house the reactor core, which is bathed by the primary cooling ...during reactor operation. In this work, we investigated an open-core ...
12
Study of water injection with evaporation in a heterogeneous highly degraded nuclear reactor core
... for reactor-scale configura- tion ...nuclear reactor core of ...such reactor scale calculations is straight ...nuclear reactor core, the effect of several geometric parameters ...
240
Variational characterizations of the effective multiplication factor of a nuclear reactor core
... In practical situations, the power distribution in a stable nuclear reactor core is determined as the steady-state solution φ of a linear transport equation for the neutron flux. Because of interactions be- ...
26
Safety analysis of reactivity insertion accidents in a heavy water nuclear research reactor core using coupled 3D neutron kinetics thermal-hydraulic system code technique
... a b s t r a c t Nuclear power plant Safety analysis using coupled 3D neutron kinetics/thermal-hydraulic codes tech- nique is increasingly used nowadays. Actually, the use of this technique allows getting less ...
7
BFS-115 : An experimental physics program to measure sodium void and control rod worth in an axially-heterogeneous fast reactor core
... FIG. 7.Schematic view of the sodium voiding and filling sequences (white = voided) Note the progressive filling of the plenum: 100% 75% 50% 25% 0% void The second SVRE measurement method is the ASM (approached ...
11
Towards spatial kinetics in a low void effect sodium fast reactor: core analysis and validation of the TFM neutronic approach
... the core resolution. In this way a core-representative distribution of the leakage and source current between areas could be shared with the lattice ...
15
Multi-objective optimization of sub-assemblies design towards static mechanical equilibrium of sodium-cooled fast reactor core
... the core geometry has to be evaluated throughout the reactor lifetime to demonstrate the core safety and ...The core thermo-mechanics code HARMONIE V2 has been developed to calculate static ...
11
Validation of an advanced APOLLO3® deterministic scheme for characterizing of the Jules Horowitz irradiation reactor core
... JHR core configuration with five Hf control rods inserted. Core-reflector super cell has been added in the new calculation scheme to produce refined reflector cross ...2D core calculation performed ...
12
Multiscale and multisolver pin power reconstruction approach in a reactor core calculation
... nuclear reactor modeling, our main interest lies within Rod Ejection Accidental situations that may occur in Pressurized Water Reactors ...the reactor physics (neutronics, thermal fuel mechanics and thermal ...
9
A Dynamic Homogenization Method for Nuclear Reactor Core Calculations
... An important issue that arises in the classical calculation scheme is how to define an adequate RHP for the reflector homogenization. Indeed, the reflector requires a different homogenization approach because no ...
254
Pulse-reactor core monitoring with an innovative optical neutron detector
... Fast Reactor (SFR) and Molten- Salt Reactor (MSR) of Generation IV by the French Atomic Energy and Alternative Energies Commission ...versus reactor power is assessed during startups and high power ...
15
Plutonium recycling capabilities of ASTRID reactor
... Test Reactor for Industrial Demonstration) is a technology demonstrator of a 4th generation Sodium Fast Reactor (SFR) system with an electric power of about 600 ...generation reactor like EPR ...
11
First In-Core Simultaneous Measurements of Nuclear Heating and Thermal Neutron Flux obtained with the Innovative Mobile Calorimeter CALMOS inside the OSIRIS Reactor
... comparison is made between results obtained by different methods, the probe calibration coefficient and the zero method. Thermal neutron flux evaluation from the SPND signal processing required a specific TRIPOLI-4 Monte ...
10
ZPR Core Representativity of SFR Reactivity Effects During Core Meltdown
... of the representativity exceeded the target 0.85. The preliminary results described in this paper present a robust methodology that can be utilized for the optimization of the desired experimental configuration with the ...
5
Compact ignition test reactor (CITR)
... The CITR will be used to study thermal stability control. Thermal stability control is required in an ignited plasma to permit steady operation at whatever temperature[r] ...
21
The centrifugal partition reactor, a novel intensified continuous reactor for liquid–liquid enzymatic reactions
... [9] and therefore, in such a system, a suitable residence time can be achieved by adapting the mobile phase flow rate and makes it possible to operate moderately fast enzymatic reactions. In this work, the potential of ...
8
Design of a percolation reactor
... flow analysis using porous media theory is described, the percolation reactor properties, the flow regime, the pressure drop, and the shear stress are defined.. Chapter 5 p[r] ...
70
Data structures for current multi-core and future many-core architectures
... Distributed Data Structures for non-cache coherent architectures. Having provided solutions for architectures that are currently in use, we tackle similar issues for many-cores, i.e. architectures that we expect to be ...
152