This analysis deals with the evaluation of the fuel burnup behavior for PWR-1150
reactor assembly by modifying with changing both, the number of fuel rod which have
burnable absorber (BA) and the percent weight of BA in each rod. The achieved resul
t
presented in this paper enables determine the suitable structure of reactor assembly
when fuel enrichment equal to 4.4%.
The GETERA 90 code was used to perform assembly burnup calculation. For
validation purposes they are compared with selected experimental data for similar
reactor.