3.1.2.
Heat Transfer Comparisons between Coolants
Pr Number
Table 4 shows the Pr and thermal conductivity values of three selected molten salt coolants (FLiBe, FLiNaK and a fluoroborate heat transfer salt), along with three other standard coolants for comparison. For a more complete list of candidate salt mixtures and corresponding Pr numbers, see [8] (calculated at 700ºC).