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Results of semiscale pumps on/off experiments

Conference ·
OSTI ID:7157246
Six experiments were conducted in the Semiscale Mod-3 system to investigate the effect of primary coolant pump operation on thermal-hydraulic behavior during a small break loss-of-coolant accident (LOCA). They were three cold leg break and three hot leg break experiments. The break size simulated was 2.5% (of cold leg pipe flow area), representing a circular opening in the side of a PWR pipe of approximately 11 cm. For each of the experiments, emergency core coolant (ECC) was injected into the cold legs at scaled flowrates corresponding to the availability of a single high pressure injection system train.
Research Organization:
Idaho National Engineering Lab., Idaho Falls (USA)
DOE Contract Number:
AC07-76ID01570
OSTI ID:
7157246
Report Number(s):
CONF-8010103-1
Country of Publication:
United States
Language:
English