INTERMEDIATE STORAGE SYSTEM FOR FUEL ELEMENTS FROM A NUCLEAR FACILITY, AND METHOD FOR OPERATING ONE SUCH INTERMEDIATE STORAGE SYSTEM

摘要

The aim of the invention is to provide an intermediate storage system (1) for fuel elements (2) from a nuclear facility, which enables even fuel elements (2) with a comparatively high burn-up to be reliably intermediately stored, while maintaining high safety standards with especially low means. To this end, the intermediate storage system (1) is designed for wet storage of the fuel elements, and a wet storage reservoir (14) can be cooled down by means of an associated secondary cooling circuit (22) which can be operated in the natural circulation mode. During the operation of the intermediate storage system (1), a coolant supplied to the wet storage reservoir (14) for cooling the fuel elements (2) is cooled down by the secondary cooling circuit (22) which is operated in the natural circulation mode.