Determination of the parameters of fluid in compartments of NPP with the water cooled reactor under severe accidents

The VSPLESK and TEATA programs for calculation of thermal physical processes in hermetically sealed compartments of NPPs under design basis accidents with coolant leakage are described. The VSPLESK program gives an opportunity to determine maximum pressures and pressure gradients, as well as fluid temperature and composition in the system of connected rooms. The TEATA program provides for calculation of thermohydraulics and aerosols. The examples of calculations by means of the programs descried are given