Abstract
Emergency Borating System has been widely used in the new third generation nuclear power plant in the world. HL1000 nuclear power plant is equipped with the Emergency Borating System (RBS) as an engineered safety facility, which provides the reactor the high pressure safety boron injection and long-term boration functions to ensure the core in subcritical. Firstly, the main functional requirements of RBS system of new third generation nuclear power plants in the world are introduced. Then, according to the two functional requirements for RBS of HL1000 nuclear power plant, reactivity control and confinements, the design criteria for RBS are determined. Based on these design criteria, the methodologies for RBS capacity demonstration are developed by the multi status point method. The relevant capacity parameters of RBS, including the maximum and minimum injection flow of RBS and the minimum volume requirements of boric acid tank are calculated separately.
