Treat simulation of two steam generator tube rupture events

The general objectives of the recovery actions following a steam generator tube rupture (SGTR) are to minimize the radiological releases from the ruptured SG and to equalize reactor coolant system (RCS) pressure with the ruptured SG pressure to stop the primary to secondary leakage. Although these basic objectives are the same for all SGTR events, there can be significant differences in the plant response due to differences in plant design, equipment availability, and operator actions taken during the recovery. This paper provides the simulations and plant data comparisons for two SGTR events