Simulating the radiation sequences of sinking pipeline rupture at a NPP with RBMK reactor

The results simulating the radiation sequences of sinking pipeline rupture in the multiple forced-circulation circuit of the NPP with the RBMK reactor are presented. The calculations of thermodynamic parameters of the steam-air medium are carried out according to the VSPLESK program, migration of radionuclides through the NPP rooms and the rate of discharge into the atmosphere are determined according to the CORRAL program. The COMEAN program is used to calculate the averaged field of nuclide concentrations in near-the -earth layer of the atmosphere as a result of gas-aerosol discharge. The conclusion is made that the technique used is applicable for calculation of radiation sequences of another loss of coolant accidents