Results 11 to 20 of about 5,445,549 (348)

Fault Detection and Isolation of a Pressurized Water Reactor Based on Neural Network and K-Nearest Neighbor

open access: yesIEEE Access, 2022
Nuclear power plants (NPPs) are complex dynamic systems with multiple sensors and actuators. The presence of faults in the actuators and sensors can deteriorate the system’s performance and cause serious safety issues.
Amine Naimi   +3 more
semanticscholar   +1 more source

Analysis and comparison of computer programs to analyze the irradiation performance of Uranium Molybdenum monolithic fuel plates and Uranium dioxide cylindrical fuel rods in power reactors.

open access: yesBrazilian Journal of Radiation Sciences, 2021
The aim of this work is to present a comparative analysis in terms of the irradiation performance of cylindrical uranium dioxide fuel rods and monolithic uranium molybdenum fuel plates in pressurized light water reactors.
André Luiz Candido da Silva   +1 more
doaj   +1 more source

Explore the possible advantages of using thorium-based fuel in a pressurized water reactor (PWR) Part 1: Neutronic Analysis

open access: yesNuclear Engineering and Technology, 2021
This study discusses the effect of using 232Th instead of 238U on the neutronic characteristics and the main operating parameters of the pressurized water reactor (PWR). MCNPX version 2.7 was used to compare the neutronic characteristics of UO2 with (Th,
A. Galahom, M. M. Mohsen, N. Amrani
semanticscholar   +1 more source

Analysis on Safety Classification of Essential Service Water System and Its Impact Analysis in a Nuclear Power Plant

open access: yes南方能源建设, 2020
[Introduction] Essential service water system is responsible for providing cooling water to the nuclear island and bringing heat to the ultimate heat sink,implementing safety classification is helpful to achieve the optimal safety function under the ...
MA Yiping, LI Wuquan, CHENG Daocang
doaj   +1 more source

Analysis of loss of coolant accident without ECCS and DHRS in an integral pressurized water reactor using RELAP/SCDAPSIM

open access: yesProgress in nuclear energy (New series), 2021
Small Modular Reactors (SMRs) are currently being developed and licensed in many countries. The innovations in the designs provide many significant features, such as decreased construction cost and time, enhanced safety, modularity, possibility of ...
K. Skolik   +6 more
semanticscholar   +1 more source

Influence of the transient conditions on release of corrosion products and oxidation of alloy 690 tubes during pressurized water reactor restart after steam generators replacement

open access: yesJournal of Nuclear Materials, 2021
The radioactivity of the Reactor Coolant System (RCS) of Pressurized Water Reactors (PWRs) mainly comes from the release of corrosion products of Steam Generator (SG) tubes made of Ni-base alloys.
J. Flambard   +4 more
semanticscholar   +1 more source

A comparative study of kinetics of nuclear reactors [PDF]

open access: yesNuclear Technology and Radiation Protection, 2009
The paper deals with the study of reactivity initiated transients to investigate major differences in the kinetics behavior of various reactor systems under different operating conditions. The article also states guidelines to determine the safety limits
Obaidurrahman Khalilurrahman   +1 more
doaj   +1 more source

Estimation of tritium generation and discharge of the AP1000 reactor based on historical discharge data from the U.S. Pressurized water reactors [PDF]

open access: yesNuclear Technology and Radiation Protection, 2023
During the normal operation of pressurized water reactors, tritium has contributed more than 95 % of the total radioactivity of all the radionuclides discharged into the environment and has been recognized as the key radionuclide in the design ...
Wang Qi
doaj   +1 more source

Evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the PHWR system decontamination

open access: yesNuclear Engineering and Technology, 2023
A protective oxide layer forms on the material surfaces of a Nuclear Power Plant during operation due to high temperature. These oxides can host radionuclides, the activated corrosion products of fission products, resulting in decommissioning workers ...
Ayantika Banerjee   +4 more
doaj   +1 more source

A nodal sensitivity study of MELCOR simulation for severe accidents in a pressurized water reactor

open access: yes, 2021
This paper presents a sensitivity study of nodal scheme in MELCOR simulation of severe accidents in a pressurized water reactor, with the objective to estimate the nodal effects on some in-vessel and ex-vessel processes and phenomena, including thermal ...
Nan Zhao   +4 more
semanticscholar   +1 more source

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