Abstract
Ice storage system is remarkable as one of solutions that equalize difference of power demand between nighttime and daytime as well as that diminish design capacity of air conditioners. This report shows methods how to design and to control the system for the efficient operating performance. Operating data in encupsuled ice storage system demonstrates that system COP becomes higher in a case that ice storage tanks and refrigerators are installed in a series connection. Compared to the parallel connection, COP of the refrigerator increases by about 2.3%, while power consumption of the brine pumps per demand decreases by 15.8%. Moreover, control with database calculated for efficient operation improves the system COP by 135.9% for the medium daily demand, which dominates annual operating efficiency.
