Research on Thermal Characteristics of Latent Heat Energy Storage System and Application Analysis
The study built a pilot-scale latent heat storage system which is capable of storing and releasing heat at temperatures of 200-300℃.The physical properties of the phase change materials used were characterized in different ways to study their compatibility with the application scenarios,and the parameter variations during the cycling process of the de-signed system were also analyzed to study the system's thermal characteristics.The experi-mental results show that the binary nitrate can stably store the waste heat at the temperature of 200-290℃,the used latent heat storage system with spiral finned tubes has a high ther-mal efficiency,and the experimental device consumes 51.75 minutes for the energy storage of 47.809 MJ and 43.5 minutes for the energy release of 46.209 MJ,and the system's heat storage efficiency is 79.16%and heat release efficiency is 79.15%.During the cycling of the system,the accumulated heat input is 60.398 MJ,the accumulated energy output is 36.578 MJ,and the cycling efficiency is 60.56%.
latent heat storagephase change materialmedium and high temperature waste heatshell and tube heat exchangerthermal properties
万方数据
维普
