Study on the main design parameters of large scale-up fast breeder reactor (II); Study on fuel handling system (II)

not registered; not registered; Nakanishi, Seiji; not registered; not registered

In order to rationalize the fuel handling system of Large Scale-up Fast Breeder Reactor, the equipment design of the Ex-vessel Storage (EVS) type fuel handling system was conducted in 1986. It can be considered that EVS type is coordinate with in-Vessel Storage (IVS) type from a viewpoint of materials and advantageous to Large Scale-up Fast Breeder Reactor for (1) reduction of reactor vessel diameter, (2) removal of the fuel handling process from sodium environment to water, and (3) realizationof ex-vessel NIS. As concerns sodium pot EVS type, the heat removal analysis at normal and transient conditions was performed to confirm the adequacy of the results gained from the equipment design in 1986 and to investigate requirements for the system. It was confirmed from the analysis results that the design was adequate and the requirements were extracted.