Development of NPP Krško Primary Loop Model for TRACE code

U sklopu ovog rada opisan je način formiranja ulaznih podataka za TRACE nodalizaciju NE Krško za primarni krug. Referentni podaci preuzeti su iz postojeće nodalizacije NE Krško za program RELAP5. Nakon formiranja ulazne datoteke napravljen je proračun stacionarnog stanja programom TRACE. Podaci su pripremljeni za elektranu na punoj snazi koja se nalazi na kraju 27. gorivnog ciklusa. Odziv elektrane verificiran je koristeći rezultate RELAP5 proračuna kao referencu. Zbog kompleksnosti modela primarnog kruga, vremenski nije bilo moguće provesti proračun akcidenta loma glavnog parovoda.Within this work is described the way of preparation TRACE input file for NPP Krsko primary loop. Referent data were taken from existing NPP Krsko nodalization for program RELAP5. The steady state calculation was performed with TRACE code. Initial data were taken for hot full power conditions of NPP Krsko at the end of 27th nuclear fuel cycle. The response of the model is verified using the results gotten from RELAP5 calculation as reference. Due to the complexity of the model of the primary loop, it was impossible to make the transient calculation