Research on slotted-pipe diffuser of naturally stratified water-storage tank

The power consumption of air conditioner is the major reason for load peak and off-peak difference in power system, and the cooling storage technology used in air conditioner can improve the power supply and demand. The most popular cooling storage technology in air conditioner is the water stratification method. In this paper, a cuboid water pool is employed to analyze the influence of Reynolds Number (Re), Froude Number (Fr) and water distributor type for the efficiency and improvement of water pool. Experiment data show that: the smaller Fr and the higher water height , the better performance of storage is got under the same Re and water supply temperature. However, the influence of Fr change is less when Re is lower than 200. At the same time, the water pool efficiency is improved for the density increase of the supply and return water under the same water temperature difference. It can be obtained that the increase of temperature difference will enhance the effect of cooling storage in air conditioner.