Results 1 to 10 of about 398 (131)

Modernization of TV-Mast of MPS-V-428 Refueling Machine at the Tianwan NPP First Unit

Глобальная ядерная безопасность, 2022
The article is devoted to the project of the modernized television mast of the refueling machine MPS-V-428 of the Tianwan NPP first unit. The goal of the modernization is to reduce the economic costs at the NPP during the scheduled preventive maintenance
A. V. Sementsov, M. I. Malakhov, K. A. Duvarov   +2 more
doaj   +1 more source

Application of the method of vacuum withdrawal inert radioactive gases to control of fuel rods leaking of nuclear reactors WWER types while operation

Глобальная ядерная безопасность, 2023
Currently, a comprehensive approach is being developed for the integrity control of fuel rod claddings in pressurized water reactor (PWR) nuclear power plants.
S. N. Kalmykov, S. D. Polozkov, A. I. Kurina, E. I. Golubev   +3 more
doaj   +1 more source

Analysis of WWER-1000 Fuel Deformation Using the Refueling Machine Control System

Глобальная ядерная безопасность, 2022
The analysis of the geometric dimensions of fuel assemblies, whose change may lead to mashing of the cassettes in the core, is performed at this stage only after removing the fuel assemblies from the reactor.
A. A. Lapkis, A. N. Bezmateva, E. A. Abidova   +2 more
doaj   +1 more source

The Use of Burnable Poisons in VVER-type Reactors to Reduce the Fraction of the Reactivity Margin Compensated by the Liquid System During Extended Runs

Глобальная ядерная безопасность, 2022
The paper presents the results of a computational and theoretical analysis of the use of various burnable poisons placed in a fuel rod for the maximum reduction in the reactivity margin compensated by a liquid system based on a boron absorber for VVER ...
A. R. Muzafarov, V. I. Savander
doaj   +1 more source

Input data to match model and prototype states of WWER NPP

Глобальная ядерная безопасность, 2023
The paper considers some possible input data of NPP power unit model for solving the problem of model state matching with prototype state. In the course of work on matching the state of NPP model with the prototype, a numerical experiment using full ...
I. A. Molev, D. A. Solovyev, A. L. Lobarev, D. A. Plotnikov, H. A. Tahash, E. V. Chernov   +5 more
doaj   +1 more source

Validation of the Physical Parameters of Monte Carlo Code Openmc by Unk Code for Different VVER 1200 Fuel Assemblies

Глобальная ядерная безопасность, 2022
Новый код Монте-Карло под названием OpenMC был разработан Массачусетским технологическим институтом. В данной работе рассматривается проверка детерминированного транспортного кода решетки реактора OpenMC для различных типов тепловыделяющих сборок ВВЭР ...
H. A. Tanash, D. A. Solovyev, V. G. Zimin, A. A. Semenov, N. V. Schukin, B. .. Djaroum, A. I. Al-Shamayleh   +6 more
doaj   +1 more source

НЕОПРЕДЕЛЕННОСТЬ В РАСЧЕТАХ ИЗ-ЗА «МГНОВЕННЫХ» АВАРИЙНЫХ СИТУАЦИЙ НА ВВЭР-1000

Глобальная ядерная безопасность, 2022
The paper shows the occurrence of pressure waves and their propagation in the equipment of the first circuit of the WWER-1000 reactor plant in emergency situations associated with an instantaneous stop of the Main circulation pump or a two-way flow with ...
S. P. Nikonov, D. A. Amer
doaj   +1 more source

Forecasting the Operation of Sealing Joints of Transport Locks of WWER-1000 and WWER-1200 Power Units in Operational Modes

Глобальная ядерная безопасность, 2022
The relevance of this work is determined by the need to predict the operation of sealing joints of transport locks of WWER-1000 and WWER-1200 power units in operational modes. The results of tests of rubber seals for tightness are given.
S. A. Kuzin, S. B. Kravets, E. V. Parygin, V. V. Krasnorutsky   +3 more
doaj   +1 more source

Influence of Fuel Temperature Distribution Dependence on Neutron-Physical Characteristics of Nuclear Core with WWER-1000 (1200)

Глобальная ядерная безопасность, 2022
This paper presents the results of the influence of reactivity on fuel temperature distribution for the neutron-physical characteristics of WWER 1000-1200 cores, which in turn affects the parameters of Xenon oscillation.
R. T. Al Malkawi, L. J. Zadan
doaj   +1 more source

АВТОМАТИЗИРОВАННОЕ УПРАВЛЕНИЕ ПРОЦЕССОМ БОРНОГО РЕГУЛИРОВАНИЯ В ЯДЕРНЫХ РЕАКТОРАХ ТИПА ВВЭР-1000

Автоматизация технологических и бизнес-процессов, 2015
Рассмотрена актуальная задача создания системы автоматизированного управления процессом борного регулирования в реакторах типа ВВЭР-1000. Результаты решения этой задачи были использованы длядальнейшей разработки компьютерно-интегрированной системы ...
Т. А. Цисельская, А. В. Ковтун   +1 more
doaj   +1 more source