The compressor is one of the main components of the refrigeration system. Its function is to increase the pressure of the refrigerant and promote the circulation of this fluid in the system.
The main types of compressors used are: reciprocating, centrifugal, screw, vane and scroll. The choice of type of compressor depends essentially on the capacity of the plant, which can be divided in terms of vaporization temperature and the refrigerant used in: small capacity (<2,5 TR), medium capacity (between 2,5 and 75 TR) and large capacity (> 75 TR). TR stands for refrigeration ton, an expression commonly used in refrigeration to translate the energy needed to liquefy one ton of ice in 24 hours (1TR = 3.5 kw).
