Fissile fuel breeding in hylife-II reactor

Abstract

This study presents neutronics analysis of HYLIFE-II reactor using flowing liquid wall containing Flibe + (UF4 or ThF4) with respect to liquid wall thickness for the purpose of fissile and fusile breeding. The molecular fraction of heavy metal salt is chosen as 4 mol % and 12 mol %. Neutron transport calculations are performed with the aid of SCALE4.3 System by solving the Boltzmann transport equation with XSDRNPM code in 238 energy groups and S8-P3 approximation. Substantial extra revenue can be gained through the insertion of heavy metal salt constituent into Flibe, which allows breeding fissile fuel for external reactors and increasing energy multiplication.