Open AccessMathematical Models for Investigation of WWER-1000/320 Transients
Author(s) -
Елена Николаевна Никулина,
Валерій Петрович Северин,
Дарина Андреевна Лукинова
Publication year - 2018
Publication title -
âderna ta radìacìjna bezpeka
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.221
H-Index - 5
ISSN - 2073-6231
DOI - 10.32918/nrs.2018.1(77).03
Subject(s) - xenon , coolant , rod , reactivity (psychology) , criticality , control rod , thermodynamics , delayed neutron , mechanics , mathematical model , nuclear engineering , constant (computer programming) , materials science , neutron , neutron temperature , physics , nuclear physics , engineering , computer science , medicine , alternative medicine , pathology , quantum mechanics , programming language
The paper presents mathematical models of the reactor WWER-1000/320, which are designed to investigate non-stationary operating modes of the reactor. The models in relative state variables include a point model of neutron kinetics with six groups of delayed neutrons and models of thermal processes, gradual heat generation, change in xenon concentration. The effects of reactivity on the movement of control rods and changes in reactor power, the effects of reactivity on changes in fuel and coolant temperatures, effect of change in the concentration of xenon are taken into account. The values of the constant parameters of the models are given for the start of stationary fuel loading.