This document aims Io review the studies mainly conducted in previous European programs on the heat transfer models to be used in T/H system codes far the safety assessment of Liquid Metal Reactors. An overview af a wide set of empirical correlations for single-phase heat transfer in tubes and rod bundies for heavy Iiquid metal is given. The results of the previous studies performed to evaluate these correlations on the basis of the experimental data available in literature and with the support of CFD analyses are summarized. In addition, the experimental data coming from NACIE test facility, located at the ENEA Brasimone research center, are used for a comparative assessment af correiatians both in gas enhanced and natural circulation conditians. Due Io the prototypical characteristics of the NACIE test section, a rigorous analysis cannot be carried out. Anyway, the results have shown that the same carrelations that best fit the experimental results in forced convection can be used with the same confidence even in natural circulation conditions.
|Titolo:||Critical review of heat transfer models for LM in TH system codes|
|Data di pubblicazione:||28-feb-2011|
|Appare nelle tipologie:||5.2 Documento in Garanzia della Qualità|