Design Optimization of Solar Thermal Energy Storage Tank: Using the Stratification Coefficient

Thermal stratification is a technique for maintaining separate layers of fluid having different temperatures. It plays a significant role in creating a large thermal gradient which in turn helps in storing more thermal energy in a solar thermal energy storage system. This paper investigates the effect of storage tank variables in terms of aspect ratio, equivalent diameter and its relationship with average stratification coefficient by varying them to different ranges to propose the optimized models.