Ice storage banks
This system is particularly suitable when the consumption of chilled water is less than 10-12 hours per day.
It consists of a perfectly insulated tank with lids that can be opened and insulated, in which is placed a heat exchanger, generally consisting of a series of coils.
Both the tank and the coils can be made of galvanised steel or stainless steel.
The tank is filled with mains water and a refrigerant fluid (freon, ammonia, glycol) is fed into the exchanger.
At predetermined times, ice sleeves are formed along the coils up to certain thicknesses and controlled by special ice-control.
Following the accumulation of ice, a flow of water is continuously fed into the tank, which is cooled to equilibrium temperature (approx. 0.5°C/1°C) on contact with the ice, and then sent to the consumers.
By accumulating ice, it is possible to take advantage of more advantageous energy rates during certain time slots and avoid excessive peaks in conjunction with the operation of other energy-intensive utilities.