Minimization of Heat-Release Distribution Instability in Burning Nuclear Fuel

Resumo

A method of solving the problem of minimizing the instability arising in the heat-release field as a result of fuel burnup and movement of the reactivity excess compensators during reactor operation. The computational particulars of the method and the results of solving the problem are discussed for a BN-1200 fast reactor (with two zones of different enrichment) where the motion of the compensators is modeled as a change in the volume fraction of the absorber.