Simulation of fuel distribution in the inner fast zone for two-zone subcritical reactor

Abstract

Investigations aimed for the optimization of fuel compositions for two-zone subcritical reactor are considered. The study of inner fast zone for two-zone subcritical reactor with homogeneous fuel concerning the geometrical, material and economical characteristics was carried out within the scope of this paper. The possibility of dividing of the inner zone into subzones with different fuel for two-zone subcritical systems was shown. It is possible to find the optimal ratio for volume of outer subzone to volume of inner subzone depending on the purpose of using such a subcritical systems.

Keywords

• subcritical systems
• Monte Carlo method
• reactor calculation
• Monte Carlo code Serpent
• optimization