NUCLEAR DESIGN FOR MIXED MODERATOR PWR

The MPWR uses basically the same hardware as a PWR; only the moderator is changed. By varying the moderator from light water to heavy water or a mixture of two, better resource (U,Pu) utilization can be feasibl e in accordance with the capacity of uranium resource and the Pu suppl y and demand balance. In this study, the feasibility of MPWR core for an ultra-long cycle of four years is analyzed to achieve high plant av ailability. (C) 1997 Published by Elsevier Science Ltd.