Abstract
The Large Scale Test Facility (LSTF) in the ROSA-IV Program is an integral test facility for investigation of pressurized water reactor (PWR) thermal-hydraulic behavior during small break loss-of-coolant accidents (SBLOCAs) and operational transients. A 10% cold leg break test was conducted in the facility shakedown phase to assess and confirm the facility capability and to collect code assessment data. The test conditions, test procedures and test results are described. The test results are compared with a pretest analysis obtained using RELAP5/MOD1 Cy18.
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