Investigating the effect of different salts on the thermal efficiency of a solar pond device

Abstract

This article describes an experimental method for determining the physicochemical properties of NaCl, MgCl2, and KCl salts to establish a salinity gradient in an experimental solar pond located at Karshi engineering-economics institute. During the experiments, separate brine solutions of each salt were prepared in the solar pond device in order to establish the density profile, concentration, and heat capacity of these salts. Based on the study of samples taken from different points of the pond, the density profile of each salt was studied and graphs were constructed. Using an adiabatic colorimeter made for the experiment, the heat capacities of each salt brine were studied in the temperature range of 20оС-70оС and at values of brine concentration of 5%-28%, and the change graphs at different temperatures were presented.