engleski

Calculation of Radioactive Inventory for Severe Accident and Consequence Codes

The paper presents procedure for automatic preparation of radioactive inventory data (mass, activity) for severe accident (MAAP, MELCOR) or consequence calculation codes (RADTRAD) based on ORIGEN depletion calculation. The depletion is performed on assembly-by-assembly basis using power/burnup 3D data calculated by PARCS code and prescribed time vector for radioactive decay calculation. The source term data can be prepared for reactor core or for whole or part of SFP inventory. In SFP case information obtained from SFPFA spent fuel assembly management system is used. The calculations are performed for NPP Krsko core cycle 29 and current inventory of NPP Krsko SFP.

Radioactive source term, ORIGEN, MAAP, MELCOR,

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