Results 161 to 170 of about 6,875,634 (190)

Comparison of the error-integral performance indexes in a GA-tuned PID controlling system of a PWR-type nuclear reactor point-kinetics model

Progress in Nuclear Energy, 2021
Abstract The control of a nuclear power plant is important due to its nonlinear dynamics. An optimized proportional–integral–derivative (PID) controller is a popular tool to this end. PID is tuned by various methods, including a genetic algorithm (GA). The quality and speed of GA optimization depend on the objective function as the performance index.
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Study on the reactor core barrel instantaneous characteristics in case of Loss of Coolant Accident (LOCA) scenarios for loop-type PWR

Nuclear Engineering and Design, 2017
Abstract The asymmetric pressure wave caused by Loss of Coolant Accident (LOCA) transients in multi-loop type Pressurized Water Reactor (PWR) leads to great shock to the reactor core barrel. The instantaneous shock causes severe damage to the reactor vessel structure integrity.
Mingjun Wang, Lianfa Wang, Jianping Jing, Xinli Gao, Suizheng Qiu, Wenxi Tian, G.H. Su   +6 more
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Robust tuned PID controller with PSO based on two-point kinetic model and adaptive disturbance rejection for a PWR-type reactor

Progress in Nuclear Energy, 2019
Abstract Nonlinear systems such as nuclear reactor dynamics are associated with parametric uncertainties and stability conditions. These properties must be taken into account in controller design. In this paper, an effective and robust Proportional–Integral–Derivative (PID) controller is designed and tuned.
Seyed Mohammad Hossein Mousakazemi, Navid Ayoobian   +1 more
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Combined numerical and experimental investigations of local hydrodynamics and coolant flow mass transfer in Kvadrat-type fuel assemblies of PWR reactors with mixing grids

Thermal Engineering, 2014
Results of research works on studying local hydrodynamics and mass transfer for coolant flow in the characteristic zones of PWR reactor fuel assemblies in case of using belts of mixing spacer grids are presented. The investigations were carried out on an aerodynamic rig using the admixture diffusion method (the tracer-gas method).
S. M. Dmitriev, O. B. Samoilov, A. E. Khrobostov, A. V. Varentsov, A. A. Dobrov, D. V. Doronkov, V. D. Sorokin   +6 more
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Evaluation of Using Reflector Drums as an Alternate Reactivity Control Mechanism in PWR-type Small Modular Reactors

Development of simplified and inherently safe reactivity control mechanisms is still a challenge in many compact Small Modular Reactors (SMRs), despite significant progress. One such approach is the use of rotating reflector drums, which have been extensively employed in space reactor systems, but their application to light-water SMRs remains ...
Safoora Rana, Alam Nawaz Khan Wardag, Sajjad Tahir, Rustam Khan, Anwar Hussain, Amjad Nawaz, Sikander M. Mirza   +6 more
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Development and Verification of a Computational Fluid Dynamics Model for a PWR-type Small Modular Reactor Subchannel

Nuclear Engineering and Design, 2023
Normando Perazzo Barbosa Souto, Claudio Luiz de Oliveira, Sergio de Oliveira Vellozo, Ronaldo Glicério Cabral   +3 more
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Effect of Break Size on Flow Instabilities in a PWR-type Small Modular Reactor

Transactions of the American Nuclear Society - Volume 121, 2019
M. Ishii, A. Khandelwal, Y. Lin, S. Wang
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A study on the feasibility of using Uranium Nitride (UN) fuel in Pressurized water reactors (PWR)

AEJ - Alexandria Engineering Journal, 2023
Moustafa Aziz
exaly  

New approach to find the equilibrium cycle in PWR reactors using genetic algorithms

Annals of Nuclear Energy, 2022
JOSÉ Rubens Maiorino
exaly  

Evaluation of Thermal-Hydraulic Feasibility of PWR-Type Reduced Moderation Water Reactor (RMWR)

The proceedings of the JSME annual meeting, 2000
Fumimasa ARAYA, Hiroyuki YOSHIDA, Masatoshi KURETA, Akira OHNUKI, Hajime AKIMOTO   +4 more
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