Thorium fuel based space reactor core and nuclear reactor having the same

摘要

A thorium fuel-based space reactor core according to an embodiment of the present invention includes a nuclear fuel assembly including a plurality of nuclear fuel bodies for causing a fission chain reaction; A coolant disposed between the nuclear fuel bodies and absorbing energy released by the nuclear fission chain reaction; A heat pipe provided between the nuclear fuel assembly or between the coolant and the nuclear fuel assembly to discharge heat generated in the nuclear fission chain reaction to the outside; And a reflector disposed to surround the nuclear fuel assembly and reducing external leakage of neutrons generated from the nuclear fuel assembly, wherein the nuclear fuel body includes thorium (Th)-232 and uranium (U)-233 metal, zirconium (Zr) ) It may be formed of a hexagonal column containing alloys and neutron energy domain transition additives.