Thermal assessment of new Ignalina NPP casks for spent nuclear fuel storage at some abnormal conditions
نویسندگان
چکیده
For interim storage of spent nuclear fuel (SNF) at the Ignalina Nuclear Power Plant (INPP), the so-called “dry” storage technology has been chosen. In this case, SNF after a cooling (pre-storage) period in water pools (no less than 5 years) is placed into GNS (Germany) manufactured metal CASTOR ® RBMK-1500 or reinforced concrete CONSTOR ® RBMK-1500 casks and may be stored for at least 50 years in an open or a closed storage facility. The SNF open storage facility, constructed in the vicinity of the INPP, currently stores 120 CASTOR and CONSTOR type casks, which contain over 6 000 SNF assemblies. The storage is already full. After the final shutdown of the INPP, up to 18 000 SNF assemblies will have to be appropriately placed into casks and stored. Presently, a new closed type storage facility for RBMK SNF from the INPP Units 1 and 2 is in the final stage of construction. The facility will be capable to store up to 200 of GNS design CONSTOR ®
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