Development of NPP Krško Reactor Vessel Model for TRACE code

U radu je objašnjen način pripreme ulaznih podataka za vezani proračun u programu TRACE. Proračun je izveden za stacionarno stanje i RWAP tranzijent.. Korišteni su podaci za početak života 27. ciklusa izgaranja NE Krško. Prije akcidenta elektrana je u stacionarnom stanju s kontrolnim sklopovima na RIL poziciji. Uspoređeni su rezultati dobiveni pomoću programa RELAP5 i programa TRACE.A TRACE model of NPP Krško reactor vessel was created from existing RELAP5 nodalization data. The document describes methods and procedures used while creating hydraulic components, heat structures and neutron kinetic model in TRACE. Capability of the TRACE model to accurately predict behavior pf charateristic parameters of real power plant was tested by simulating steady state and RWAP transient case. Results were compared with results provided by calculation using program RELAP5