Filter
Top Products
8 TRG-TRC005-EN
notes
period two
Condensers
causing the refrigerant vapor within the tubes to condense. The remaining
water then falls to the sump to be recirculated and used again.
Subcooling of the refrigerant can be accomplished by piping the condensed
liquid back through another few rows of coil tubing, located either in the
condenser airstream or in the water sump, where additional heat transfer
reduces the temperature of the liquid refrigerant.
Water-Cooled Condensers
The shell-and-tube is the most common type of water-cooled condenser.
With this design, water is pumped through the tubes while the refrigerant vapor
fills the shell space surrounding the tubes. As heat is transferred from the
refrigerant to the water, the refrigerant vapor condenses on the tube surfaces.
The condensed liquid refrigerant then falls to the bottom of the shell, where it
flows through an enclosure that contains additional tubes (the subcooler). More
heat is transferred from the liquid refrigerant to the water inside these tubes,
subcooling the refrigerant.
After the warm water leaves the condenser, it must either be disposed of (as in
the case of using water from a well) or it must be cooled before it can be reused
by the condenser. In this example, the condenser brings in 85°F [29°C] water
and warms it up to 95°F [35°C]. Before this water can be used again, it must be
cooled back down to 85°F [29°C].
cooling water
cooling water
subcooled
subcooled
, liquid
, liquid
refrigerant
refrigerant
subcooler
subcooler
Water-Cooled Condenser
hot, refrigerant vapor
hot, refrigerant vapor
85ºF
85ºF
[29ºC]
[29ºC]
95ºF
95ºF
[35ºC]
[35ºC]
Figure 13