The present report describes the experimental campaign performed on the 19-pins wire-spaced fuel pin simulator installed inside the NACIE-UP (NAtural CIrculation Experiment-UPgrade) facility located at the ENEA Brasimone Research Center (Italy). In this campaign, the facility was also equipped with a prototypical thermal flow meter for liquid metals, developed and designed by ENEA and manufactured by Thermocoax, which was already tested in water and Lead Bismuth Eutectic (LBE). The experimental campaign focused on mass flow rate transition, from forced to natural circulation, with fuel pin simulator characterized by non-uniform power distribution. The aim was to analyze the effects of this non-uniformity on the local temperatures and on the overall system behaviour. The obtained data can be used to qualify numerical codes for Heavy Liquid Metal (HLM) systems.

Test di caratterizzazione termo-fluidodinamica sull’impianto NACIE

Polazzi, G.;Sermenghi, V.;Di Piazza, Ivan
2017-11-28

Abstract

The present report describes the experimental campaign performed on the 19-pins wire-spaced fuel pin simulator installed inside the NACIE-UP (NAtural CIrculation Experiment-UPgrade) facility located at the ENEA Brasimone Research Center (Italy). In this campaign, the facility was also equipped with a prototypical thermal flow meter for liquid metals, developed and designed by ENEA and manufactured by Thermocoax, which was already tested in water and Lead Bismuth Eutectic (LBE). The experimental campaign focused on mass flow rate transition, from forced to natural circulation, with fuel pin simulator characterized by non-uniform power distribution. The aim was to analyze the effects of this non-uniformity on the local temperatures and on the overall system behaviour. The obtained data can be used to qualify numerical codes for Heavy Liquid Metal (HLM) systems.
Tecnologia dei metalli liquidi;Generation IV reactors;Rapporto tecnico
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12079/8013
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