Simulation modeling of processes in the WWER-1000 reactor with power control by absorbing rods
Abstract
Mathematical models of WWER-1000 nuclear reactor of V-320 series are presented in the form of systems of differential equations in relative state variables. These models describe the neutron kinetics of the reactor with six groups of delayed neutrons, gradual heat release in fuel, changes in fuel temperature, fuel element envelopes and coolant, change in xenon concentration when power is regulated by absorbing rods. The values of the model parameters are calculated. Simulated modeling of the processes taking place in the WWER-1000 reactor was carried out while adjusting the reactor power with absorbing rods. Transient processes are shown that allow one to analyze changes in the variables of the state of the reactor core.
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