Search

Processes occurring during the reactor operation and accidents change the thermal, chemical and other properties in nuclear fuel elements. This paper describes the processes in the nuclear fuel elements and tools for simulation at these processes. Fuel elements used at the Ignalina NPP were simulated with the FEMAXI-V (Japan) and TESPA-ROD (Germany) codes. The developed models were employed to analyse the processes in fuel elements in case of the large LOCA BDBA. The models and the results of the analysis are presented in the paper. [ABSTRACT FROM AUTHOR]