Development of NPP Krško Model for MELCOR Code

U radu se modelira nuklearna elektrana Krško u programu MELCOR, opisuju se podaci i vrši se proračun akcidenta gubitka izmjeničnog napajanja. Rezultati se uspoređuju s referentnim rezultatima modela elektrane u programu MAAP. Analizira se odziv elekrane nakon akcidenta te se uspoređuju razultati različitih verzija MELCOR koda. Prati se vrijeme do taljenja jezgre, probijanje posude i eventualno probijanje kontejnmenta.In diploma thesis nuclear power plant Krško is modeled for MELCOR program, input data is described and calculation of severe accident (station blackout) is performed. Results are compared to reference results in MAAP model of Krško. Behaviour of power plant after initial event is compared for different code versions of MELCOR program. Time to core meltdown, vessel failure and containment failure is monitore