Results 1 to 10 of about 19,964 (205)

Nonlinear control for core power of pressurized water nuclear reactors using constant axial offset strategy

open access: yesNuclear Engineering and Technology, 2015
One of the most important operations in nuclear power plants is load following, in which an imbalance of axial power distribution induces xenon oscillations. These oscillations must be maintained within acceptable limits otherwise the nuclear power plant
Gholam Reza Ansarifar, Saeed Saadatzi
doaj   +3 more sources

Modeling and validation of crutch-supported exoskeleton gait using a double-inverted pendulum approach [PDF]

open access: yesJournal of NeuroEngineering and Rehabilitation
Purpose Exoskeleton-assisted walking for individuals with paraplegia presents unique biomechanical challenges due to minimal lower-limb actuation and substantial reliance on upper-body support via crutches.
Reza Norouzzadeh   +3 more
doaj   +2 more sources

Automated system for control of VVER-1000 fuel properties considering fuel cladding damage parameter. [PDF]

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2018
An automated system for control of VVER-1000 reactor fuel properties considering fuel element cladding damage parameter, fuel burnup and axial offset has been proposed.
Сергій Миколайович Пелих   +3 more
doaj   +6 more sources

Control of the axial offset in a nuclear reactor at power maneuvering

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2014
High reliability and security of power unit are basic requirements when the power unit maneuvering mode operation. The reactor stability under disturbances both at steady load and maneuvering load embodies the guarantees of power unit safe and reliable ...
Maksim V. Maksimov   +2 more
doaj   +7 more sources

Axial offset as measure of stability of light water nuclear reactor during capacity maneuvering

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2015
High reliability and security of power unit are required during operation of power unit while maneuvering. They depend on the stability of reactor when transition from one power level to another. The axial offset is a quantitative measure of the reactor
Марк В. Нiкольский
doaj   +7 more sources

Experimental and Numerical Analysis of Leakage Characteristics of Proportional Directional Valve [PDF]

open access: yesMATEC Web of Conferences, 2022
This article deals with the experimental and numerical analysis of the leakage characteristics of the proportional directional valve. These characteristics describe the flow through the directional valve in the region of the center position of the spool ...
Ledvoň Marian   +3 more
doaj   +1 more source

Modeling and Design of a Novel 5-DOF AC–DC Hybrid Magnetic Bearing

open access: yesApplied Sciences, 2022
This paper investigates a novel integrated AC–DC hybrid magnetic bearing (HMB) to reduce the volume, weight, manufacturing, and operation cost of magnetic suspension motors. Two radial MBs and an axial MB are integrated with the proposed HMB.
Xiaoting Ye   +3 more
doaj   +1 more source

Investigation of algorithms for suppressing xenon oscillations in a VVER-1200 reactor [PDF]

open access: yesNuclear Energy and Technology, 2022
This paper presents the results of numerical studies of various algorithms for suppression of xenon offset and power distribution oscillations in the core of a VVER-1200 reactor.
Denis A. Soloviev   +3 more
doaj   +3 more sources

Simulation of Pressurized Water Reactor to Find the Best Control Solution

open access: yesEnergy Engineering and Control Systems, 2021
Since it is impossible to simultaneously control all technological and thermal parameters of the nuclear reactor, a vertically distributed model of a power unit was developed, which allows determining the axial offset and analyzing the behavior of ...
Taia Petik   +2 more
doaj   +1 more source

3-D TRANSIENT COUPLED SIMULATION OF SUPERPHENIX WITH PARCS/ATHLET [PDF]

open access: yesEPJ Web of Conferences, 2021
Most safety criteria for Sodium cooled Fast Reactors (SFR) are local core parameters. Thus, application of 3-D neutron kinetic and thermal-hydraulic coupled codes including detailed modelling of core expansion effects is mandatory for best estimate ...
Bousquet Jeremy   +2 more
doaj   +1 more source

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