Modeliranje goriva nuklearnog reaktora u programu ANSYS

Despite the fact that the design of the fuel assembley depends of the reactor type, design of their fuel rods is more or less the same. It consists of cladding tube into which fuel pellets are inserted. Between cladding and the fuel pelletes, there is helium gap. Fuel rod also presents first barrier in defence against radioactivity releas, therefore, it is very importatnt to carry out security analsys in order to preserve its integrity. In order to prevent cladding and fuel melt which leads to radioactivity releas, it is crucial to continuously cool the fuel rods. Temperature distribution analysis in ANSYS shows that under normal operating conditions, temperatures in cladding tube and fuel are not close to critical values.