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The objective of this work is to verify the validity and accuracy of the results provided by the computer programs FRAPCON-3.4a and FRAPTRAN-1.4, used in the simulation process of the irradiation behavior of Pressurized Water Reactors (PWR) fuel rods in steady-state and transient operational conditions at high burnup. To perform the verification, the database FUMEX-III was used to provide data on experiments with different nuclear fuel types, under various operating conditions. Through the comparison of the computational simulation results of the programs FRAPCON-3.4a e FRAPTRAN-1.4 with the experimental data of the database FUMEX III, it was found that the computer programs used have good ability to predict the operational behavior of PWR fuel rods in high burnup steady-state conditions and under Reactivity Initiated Accident (RIA).

Análise do comportamento sob irradiação do combustível nuclear a altas queimas com os programas computacionais FRAPCON e FRAPTRAN