Thermo-hydraulic design of PIPER-ONE loop -reflood period-" (in Italian)

The document deals with analysis performed to extend the domain of applicability of the PIPER-ONE loop. PIPER-ONE was a Boiling Water Reactor (BWR) simulator installed at the Scalbatraio Laboratory managed by Dipartimento di Costruzioni Meccaniche e Nucleari (DCMN, now DICI) of University of Pisa. The original design target for the PIPER-ONE loop was the Small Break Loss of Coolant (SBLOCA) scenario in Boiling Water Reactors (SBLOCA). In the current document an effort was made to demonstrate the applicability of the loop to analyze the reflood period of a Large Break LOCA (LBLOCA). Scaling analysis and a preliminary test plan are discussed.