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TRG-TRC005-EN 5
notes
The first major component to be discussed is the condenser. The condenser is
a heat exchanger that rejects heat from the refrigerant to air, water, or some
other fluid.
The three common types of condensers are air-cooled, water-cooled, and
evaporative.
Air-Cooled Condensers
A typical air-cooled condenser uses propeller-type fans to draw outdoor air
over a finned-tube heat transfer surface. The temperature difference between
the hot refrigerant vapor that is flowing through the tubes and the cooler
outdoor air induces heat transfer. The resulting reduction in the heat content of
the refrigerant vapor causes it to condense into liquid. Within the final few
lengths of condenser tubing (the subcooler), the liquid refrigerant is further
cooled below the temperature at which it was condensed.
period two
Condensers
Refrigeration
System Components
Figure 8
subcooler
subcooler
outdoor
outdoor
air
air
condenser
condenser
coil
coil
propeller
propeller
fan
fan
Air-Cooled Condenser
Figure 9
period two
Condensers