Forgione N.1, Martelli D.1, Del Nevo A.2, Di Piazza I.2
1University of Pisa, Pisa, Italy
Italian National Agency for New Technologies, Energy and Sustainable Economic Development , Brasimone, Italy
Method of coupling RELAP5/Mod3.3 with CFD code was developed for simulation of thermal hydraulics in lead-bismuth test facility NACIE designed to qualify components and procedures relevant to HLM nuclear technologies. NACIE facility includes lead-bismuth loop with the heat source (fuel pin simulator) and gas lift device to promote liquid metal flow in the loop. Tests are performed varying gas flow rate and electric power supplied to the heater. The numerical model is capable of simulating both natural and assisted circulation tests.
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