Multilayer hot and cold water tank for domestic use includes heat storage reservoir using latent heat and includes several heat exchangers in hot and cold regions

摘要

The tank (1) may be a cylinder with a vertical axis and a side branch (4) at the bottom. The water in the tank is at low pressure. There are heat-exchangers (5,7,8,12) in various parts of the tank. The latent heat storage system (2,9,10,11,20,21,22,23,25) consists of coils in the upper and lower parts of the tank and there are connections to a solar heat absorber.