Experimental Investigation on Small Break Loss of Coolant Accident for Direct Vessel Injection Line

The small break loss of coolant accident (SBLOCA) experiment for direct vessel injection (DVI) line, which investigated the thermal-hydraulic phenomena and the performances of passive safety system during the accident, was performed on the passive safety system test facility for small modular reactor. The experimental results show that the passive safety system of small modular reactor can provide effective coolant injection, successful removal of core residual heat under the DVI line SBLOCA and protection to reactor core safety.