MONJU is a sodium-cooled, loop-type prototype fast breeder reactor which can supply 280MW of electricity. The frequency of anticipated transient without scram (ATWS) of MONJU that used to be based on conservative assumption was re-evaluated by appropriately providing the event sequence from the result of plant response analysis. As a result, detailed evaluation of the ATWS frequency according to the result of the plant response analysis and reviewing event sequence scenarios have enabled realistic ATWS frequency estimation.
Volume Subject Area:
Safety and Security
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