Analysis of Thermal Energy Storage Mediums for Solar Thermal Energy Applications

Energy storage mediums are highly popular in solar applications due to their ability to store heat and release it during any time period of the day. This study provides a classification of different thermal energy storage (TES) mediums in various solar energy systems with their feasibility and future applications. The concept of TES and the various studies on the application of TES in solar thermal applications have been presented. Recent advances and the performance of common solar thermal systems with and without TES have also been presented. Working conditions, economical aspects, suitability, and selection criteria of TES materials have also been discussed based on their application. This paper also uncovers the future aspects that possibly will improve the use of TES and lead to the performance optimization of solar thermal systems.