After pasteurising at a specific temperature, the milk needs cooling to a particular process temperature. In a Plate Heat Exchanger, this can almost take place by heat recovery, — up to 94% of the added heat is recovered.
But external cooling must be available for the Pasteuriser and other Dairy processing
Mejeriet prefer Ice water with a temperature of around +1-2° C – No risk of freezing
An Ice water unit can consist of
- Compressor – Free choice of refrigerant.
- Evaporator — A water tank with many meters of tubes folded closely in the water were 25 to 35mm of ice is building upon the line, keeping the water at 1½° C
- Condenser with a fan to remove accumulated heat from the water
- Pump to circulate the ice water to where is needed.
- Consider alarm system – You can’t do Business without cooling.