Feasibilty Of Coconut (Cocos Nucifera) Oil As Medium For Thermal Energy Storage System

The role of Thermal Energy Storage System is to store heat from Sun and consume it for latter time on Sun's absence. A TES material should have a high rate of heat absorption and can able to retain its heat for a longer period. A 5kg of Coconut (Cocos nucifera) oil underwent a 10-day experimental research for its feasibility as TES material. A pump-driven water acquired heat from a Solar Flat Plate Collector then released its heat to Coconut oil inside an insulated storage. Temperature of the Coconut oil was recorded on a 30-minute interval, set from the initial to peak temperature then from peak back to its initial temperature. By Statistical Method, for 95% confidence interval, the heat charging time was significantly lower that the heat discharging time. Graphical Methods showed that hourly rate for heat absorption was remarkably high compared to the heat discharging rate. Hence, Coconut oil could be a medium for TES System.