Filter
Top Products
44 TRG-TRC005-EN
notes
period six
Review
of the refrigerant vapor causes it to desuperheat, condense into liquid, and
further subcool before leaving the condenser (D) for the expansion device.
Finally, the high-pressure liquid refrigerant flows through the expansion device,
causing a large pressure drop (the line from D to A) that reduces the pressure
of the refrigerant to that of the evaporator. This pressure reduction causes a
small portion of the liquid to boil off, or flash, cooling the remaining refrigerant
to the desired evaporator temperature. The cooled refrigerant then enters the
evaporator (A) to repeat the cycle.
Period Two discussed the different types of condensers and methods of
condenser control. The condenser 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.
Review—Period Two
air-cooled
condenser
water-cooled
condenser
evaporative
condenser
Figure 63