Application of Frequency Regulation of the Main Circulation Pump for Increasing the Nominal Power of VVER

Abstract

The thermal power of NPP with VVER-100 can be increased by increasing the flow of reactor water by increasing the number of revolutions of the main circulation pump. The computational method proposed in the present article makes it possible to determine, for prescribed relations between the reactor water flow and the crisis of heat exchange in the reactor setup with known geometry of flow over the fuel elements and with the prescribed heightened coolant flow, the admissible power increment for constant safety margin of the heat-engineering reliability of the core. The expected effects and problems in implementing the method of operating the reactor are examined and evaluated.