International Research Journal of Education and Technology

The significance of Thermal Energy Storage (TES) systems in attaining environmentally friendly energy solutions, specifically for heating purposes, is becoming more widely acknowledged. This research paper introduces innovative developments in TES with Paraffin wax as a Phase Change Material (PCM) in a compact tank design. The study centers on the analysis of thermal stratification in a 280mmx280mm tank, with an assessment of the efficacy of PCM-enhanced TES in the charge and discharge procedures.  Comparative studies were made between conventional TES systems and incorporating PCM via experimental analysis. The findings of these analyses unveil noteworthy enhancements in thermal performance and efficiency. Significantly, the TES system incorporating PCM demonstrates a noteworthy efficiency rating of 90.25%, emphasizing its feasibility for tangible implementations. In addition, a comprehensive analysis of the mechanisms that govern thermal stratification and heat transmission dynamics within the system is conducted, yielding significant findings that can be utilized to enhance the design of TES. The results emphasize the capacity of PCM-based TES systems to promote environmentally friendly heating methods, which has far-reaching consequences for various sectors including industrial operations and residential heating.

Keywords: Thermal Energy Storage, Paraffin wax, thermal stratification, Phase Change Material, Charging and discharging