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fuel rod

Fluid induced vibration effects on flow charateristics of fuel rod bundles

Fluid induced vibration effects on flow charateristics of fuel rod bundles

... nuclear fuel rod bundle to increase the secondary flow velocity at sub-channel, further more enhance heat ...of rod bundle with LSVF mixing vanes were simulated to induce the secondary flow and the ...

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A Sensitivity Study on the Fuel Rod Hydraulic  Instability for the Advanced 16X16 Fuel Development (C501)

A Sensitivity Study on the Fuel Rod Hydraulic Instability for the Advanced 16X16 Fuel Development (C501)

... The fuel rod instability can be occurred because of the axial and cross flow due to the flow anomaly and/or flow redistribution in the lower core plate region of the pressurized water ...The fuel ...

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Analytical-and-Experimental Simulation of WWER-1000 Fuel Rod Behaviour under Initial Stage of LB LOCA at the Test Bench "Parameter"

Analytical-and-Experimental Simulation of WWER-1000 Fuel Rod Behaviour under Initial Stage of LB LOCA at the Test Bench "Parameter"

... of fuel rod cladding under quick changing of the loading conditions the experimental check is required with the accident scenarios corresponding to the design understanding the processes of the core ...

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Uncertainties in the No Lift-off Criterion Used in Fuel Rod  Assessment

Uncertainties in the No Lift-off Criterion Used in Fuel Rod Assessment

... a fuel rod design criterion regarding the internal ...of fuel rods, a methodology taking into account the uncertainty in some important input parameters of the fuel rod model is ...

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Calculations of Fuel Rod   Cladding Deformation for a Reactor Plant Wwer-1000 Under LB Loca   (C180)

Calculations of Fuel Rod Cladding Deformation for a Reactor Plant Wwer-1000 Under LB Loca (C180)

... the fuel rods with similar power are ...of fuel rod in the calculated channel is made with the help of computer codes TVEL-3 and TVEL ...of fuel rod are realized within the frame of ...

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Adaptive Numerical and Computational Methods for Temperature Profiling of a Cylindrical Nuclear Fuel Rod

Adaptive Numerical and Computational Methods for Temperature Profiling of a Cylindrical Nuclear Fuel Rod

... the fuel rod in a nuclear reactor is very important due to safety ...nuclear fuel rod. The cladding of the fuel rod is done to incresase the physical strength of the Fuel ...

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Effects   of Loading Conditions and Types of Motion on PWR Fuel Rod Cladding Wear

Effects of Loading Conditions and Types of Motion on PWR Fuel Rod Cladding Wear

... of fuel assemblies (Figure 1) in PWR power plants can result in severe wear of fuel rod cladding against grid ...of fuel assemblies, Electricité De France (EDF) recently funded a fretting-wear ...

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Finite element modeling of spent fuel rod segments under bending loads

Finite element modeling of spent fuel rod segments under bending loads

... spent fuel with respect to transport loads has been in the focus in the past and ...The Fuel Integrity Project, a joint project between TN International and International Nuclear Services (INS) in the early ...

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Thermo-Hydraulic Investigation of Nanofluid as a Coolant in VVER-440 Fuel Rod Bundle

Thermo-Hydraulic Investigation of Nanofluid as a Coolant in VVER-440 Fuel Rod Bundle

... in rod bundle, at different Reynolds numbers is ...of fuel rod ...of fuel rod bundle (walls of rods and ...the rod bundle, the delay in thermal boundary layer formation resulted ...

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Fuel Rod to Support Contact Optimization for the 16x16 Next Generation Fuel

Fuel Rod to Support Contact Optimization for the 16x16 Next Generation Fuel

... the fuel rod cladding for the entire deflection range, several cases with spring modifications are ...lower rod contact forces and improved fretting wear ...

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Simulation of UO2 fuel rod failure conditions for transient power regimes by the RTOP code

Simulation of UO2 fuel rod failure conditions for transient power regimes by the RTOP code

... to fuel rod ...the fuel matrix into the rod free volume depends on fuel burnup and linear heat ...the fuel rod HS1 in INTERRAMP experiment. The HS1 rod failed ...

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Coolant-Fuel Rod  Interaction for Rod Bundle with Seven Spacer Grid Assemblies

Coolant-Fuel Rod Interaction for Rod Bundle with Seven Spacer Grid Assemblies

... the rod bundle for CFD analysis neglected the flow induced vibration ...with fuel rod ...towards rod buddle vortex shedding ...the fuel rod then it starts swaying out of ...

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A   Probabilistic Failure Assessment of a Dry Cask Storage System (M480)

A Probabilistic Failure Assessment of a Dry Cask Storage System (M480)

... spent fuel failure than the 7x7 or 8x8 ...the fuel rods for the various initiating events will be calculated in the structural ...of fuel rod failures can be ...

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Steam Flow-rate Effect on the Transient Behaviour in Phebus Experiment FPT-1

Steam Flow-rate Effect on the Transient Behaviour in Phebus Experiment FPT-1

... ICARE: The ICARE module describes the in-vessel degradation phenomena (both early and late degradation phases). ICARE allows simulating the early-phase of core degradation with fuel rod heat-up, ballooning ...

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The Buckling of Fuel Rods under Inertia Loading

The Buckling of Fuel Rods under Inertia Loading

... Fuel rod buckling analyses under bottom end drop impact and center of gravity ...the fuel geometry (pitch) in criticality ...fresh fuel and spent fuel. A typical PWR fresh fuel ...

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Thermal Hydraulics Aspects of Top Reflood Experiment PARAMETER-SF1 Modeling

Thermal Hydraulics Aspects of Top Reflood Experiment PARAMETER-SF1 Modeling

... 19 fuel rod simulators with a length of approximately ...(heated rod simulators) and 2.92 m (unheated rod simulator). 18 fuel rod simulators are heated over a length of 1275 mm, ...

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Influence of Azimuth and Radial Neutron and Thermal Sources Anisotropy on Contact Problem Simulation in Real Fuel Pellet-Cladding Configuration Using FEM

Influence of Azimuth and Radial Neutron and Thermal Sources Anisotropy on Contact Problem Simulation in Real Fuel Pellet-Cladding Configuration Using FEM

... nuclear fuel as a basic part of each NPP is more and more apparent, so the effort of our work is to describe more correctly the behaviour of the cylindrical fuel rods under more stringent operational ...

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Assemblies Behaviour Under Thermal Mechanical Loading

Assemblies Behaviour Under Thermal Mechanical Loading

... "fuel rod - SG ...the fuel rod could move through SG ..."fuel rod - SG cell" the fuel rods are connected with the cells using special contacting elements with ...

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Present and future trends in PHWR fuel material modelling with the BaCo code

Present and future trends in PHWR fuel material modelling with the BaCo code

... the fuel rod behavior under irradiation conditions [1, ...the fuel rod behavior, the BaCo code currently gives the modeling support for the design of advanced PHWR (CARA fuel [3]) and ...

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Consistent neutron-physical and thermal-physical calculations of fuel rods of VVER type reactors

Consistent neutron-physical and thermal-physical calculations of fuel rods of VVER type reactors

... cylindrical fuel rod it is necessary to solve the equation of thermal conductivity with specified boundary ...of fuel rod, this problem has an analytical ...nuclear fuel depends on ...

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