Abstract
The preliminary transient accident analysis has been carried out since 2005 for China Helium Cooled Ceramic Breeder Test Blanket Module (CN HCCB TBM) on ITER equatorial port #2. In this paper, the RELAP5 model is recreated according to the design of the CN HCCB 1×4 TBM and its cooling system, and two design basis accidents (In-Vessel Loss of Coolant Accident (LOCA) and In-Box LOCA) are investigated. The influences of different break sizes during these accidents are comprehensively analyzed. The analysis results can provide a reference for the following parameter optimization design of CN HCCB Test Blanket System (TBS).
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