BASIC REFRIGERATION CYCLE Notes
Mechanical refrigeration is used to remove heat from a colder medium and reject it to a
warmer medium by using the latent heat properties of refrigerant. Simply stated, in order to
accomplish this transfer of heat energy, the refrigeration system must provide a refrigerant
temperature below the temperature of the medium to be cooled and raise the temperature of
the refrigerant to a level above the temperature of the medium that is used for rejection.
Although the entire chiller package is more complex, the basic components required for
mechanical refrigeration are the compressor, evaporator, condenser and thermostatic expansion
valve. A complete typical chiller layout follows this section.
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