Liquefaction and evaporation of a refrigerant that gives off and absorbs heat.
Heat it gives off is disposed of, heat it absorbs is from circulated water, known as chilled water.
Chilled water is the medium for the subsequent cooling processes.
Refrigerants are a gas at normal temperatures and pressures which are compressed and liquefied to be able to be used as heat absorbers.
System consists of refrigerant within a closed loop pipe system with a low(evaporator) and high(condenser) pressure side
A compressor and expansion valve separates the two sides.
Compressor condenses the refrigerant which passes through the cool condensing water
cool condensing water removes latent heat from the pressurized gas turning the refrigerant into a liquid form.
The condensed liquid is released through the expansion valve into the evaporator, instantly returning to the gaseous state
The change back to gas requires heat and thus it is absorbed from water running over the piping,
the water in turn is chilled and is used for cooling air.
The system can be reversed to create a heat pump instead of cooling.
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