Kinetic and thermophysical studies of acetamide-sodium bromide eutectic for low temperature storage applications

Abstract The kinetics of thermal decomposition of acetamide-sodium bromide using a Differential Scanning Calorimeter and a Differential Thermogravimetric Analyser have been reported. The kinetic parameters have been evaluated using Zsako's method using 10 different mechanisms, such as nucleation, nuclei growth and diffusion. The thermophysical properties, such as density and viscosity, which have a profound effect on the design of the heat exchanger and crystallization have been evaluated and reported. The results show that the eutectic has favourable characteristics, namely low volume change, high energy storage density, high heat of fusion, good thermal stability and favourable crystallization characteristics. The eutectic could find use in thermal energy storage applications for commercial and laundry water heating, process heating hot water, process heating hot air, crop drying and food warming in the hotel industry.