FUEL ASSEMBLY DESIGN CONCEPT AND MIXED CYCLE LENGTH OPERATION METHOD FOR LONG CYCLE LENGTH PRESSURIZED WATER REACTOR OPERATION

摘要

According to the present invention, in the nuclear fuel assembly and long-cycle operation method for long-cycle operation of a pressurized light water reactor, the operation cycle of the reactor is additionally secured in consideration of the inevitable pause that occurs when the nuclear fuel is replaced, and the additionally secured operation cycle can be accommodated. By applying the nuclear fuel arrangement method, it is possible to increase the operation efficiency of the reactor.