Project of the Active Zone for the BN-800 Type Reactor Operating without a Reactivity Margin under Minimal Control over a Long Period of Time

摘要

Parameters are suggested for the active zone (AZ) and control of a BN-800 type reactor with uranium-plutonium oxide fuel and primary sodium, which ensure the establishment of a selfadjusting neutron nuclear mode of second type (SANN M-2). In the SANNM-2 the reactor operates without a reactivity margin and fuel replacement in a mode close to the equilibrium one over a long period of time. This significantly improves the reactor's safety and efficiency. Mathematical modeling of the AZ for the BN-800 type reactor is performed within the framework of a one-and-a-half-dimensionaldynamical model based on the quasidiffusion transfer equation.