An Energy Storage System Utilization for Performance Enhancement of Wind Catcher Cooling

High peaks of electrical energy usage during hot summer days have become an issue for the power supply systems causing regional power outages. Cooling demand is the main reason for such energy load, which is majorly supplied by electricity. It is possible to use the night cold air for daytime cooling. Energy storage is necessary for the usage of this night-cold energy. The night ambient temperature is usually not cold enough to provide the required low-temperature heat transfer fluid flow and the daytime cooling demand is generally high. A novel system where a storage unit is connected to a wind catcher has been investigated in this study. The results showed that this new system covers the above-mentioned problems. According to the final results, ۱۲.۸ kWh of cold energy was stored in the energy storage unit, presenting ۶۴ % of energy storage efficiency and ۶h ۳m of the charging required time during the night. It was also revealed that the energy storage unit's thermal performance, is highly relevant to the inlet temperature, where ۵ °C decreases in the inlet temperature, increased the stored energy by ۱۷%, and decreased the charging required time by ۱h ۳۳m.

کلیدواژه ها:

Thermal storage ، Phase change ، wind catcher ، night cool