Evaluating physical properties of molten salt reactor fluoride mixtures

Heat capacity and thermal conductivity of molten ternary lithium, sodium, potassium, and zirconium fluorides mixtures

“…Both literature and our values of the heat capacity agree well with those calculated from the empirical expression, which relates the heat capacity of the molten fluoride mixtures to their molecular mass [26]. The monocrystalline sapphire was the standard sample in the measuring heat capacity of molten eutectic 0.42LiF-0.29NaF-0.29ZrF 4 mixture.…”

“…6 and 7 that the experimental data on the heat capacity of molten fluoride mixtures studied agree satisfactorily with the values estimated by the simple empirical equation (c p = 0.292 + 80.2/M) [26] associating this property with molecular mass M (g mole À1 ) of fluoride compositions. The equation was derived, for the most part, from ORNL results [12] presented in Fig.…”

Thermal conductivity of high temperature fluoride molten salt determined by laser flash technique

“…The specific heat capacity of FLiNaK molten salt has been experimentally and theoretically studied [23][24][25][26], as summarized in Fig. 4, suggesting the specific heat capacity obtained in this work is very close to the extensively accepted value of 1.88 J/g K [2,4,5,23,27].…”

“…a À C, a À T, and a À L are the thermal diffusivities obtained from the combined model, three layered model, and literature, respectively. The thermal conductivity, an important parameter, was studied by many researchers for FLiNaK molten salt [24,27,[29][30][31][32][33][34][35]. For example, Janz et al [29] compiles physical properties of different salt systems, and reported the thermal conductivity of FLiNaK molten salt was 2.97-4.43 W/(m K) in the range of 800-920 K by the modified parallel plate method, and the uncertainty was about ±25%.…”

Corrosion behavior of ZrC–SiC composite ceramics in LiF–NaF–KF molten salt at high temperatures

“…FLiNaK molten salts can be used as a secondary coolant and a primary simulation coolant in molten salt reactors (MSRs) [10,11]. FLiNaK molten salts can also be used as a primary coolant in advanced high-temperature reactors [12,13].…”