Heat transfer of the uranium sphere in laminar cooling flow

Abstract

The key problem in the construction of new geometrical and structural type of nuclear reactor of forth generation is optimized cooler configuration. In the present paper the mathematical model of the uranium sphere located in ntensive neutron flux and streamlined by laminar cooling flow is presented. Detailed picture of the temperature difference and hydrodynamic velocity and its pressure of the cooling flow around the sphere heated inside by nuclear fission reactions are analyzed. The emergency cases in nuclear reactor operation are mainly connected with the cooler heat transfer from active zone, where fuel elements are located to the steam generator when cooler transport is stopped due to unexpected interrup-tion or its leakage. The paper reveals some definite parts of the technical problem from nalyzing it’s ap-pearing to the ways of its full solution.