Thermal Conductivity of Mixed Aqueous Solutions of NaCl, СаСl2 and KCl Salts close by Saturation Line

Abstract

The paper contains experimental data on thermal conductivity of mixed aqueous solutions of salts within the temperature range from 20 to 300 °C and with various electrolyte concentrations in mass percentage. Thermal conductivity of H 2 0-NaCl-CaCl 2 -KCl system at high temperatures has been studied for the first time. The experimental results of the present investigations have been generalized within the relative coordinates, namely: λ/λ 0 and T/T 0 , (Т 0 = 293,15 К; λ 0 - thermal conductivity of a solution at T 0 temperature). An empirical equation of thermal conductivity in the parabolic form has been obtained.