Environmental Engineering Reference
In-Depth Information
Condenser
Heat
exchanger
Compressor
Evaporator
Expansion
valve
Conventional direct-expansion system with suction-line heat exchanger
(B)
Water cooled
condenser
Subcool cycle
expansion
valve
Subcool cycle
compressor
Air cooling condenser
Condenser
Heat exchanger
Main cycle
expansion
valve
Evaporator
Refrigerated
space
Main cycle
compressor
Conventional direct expansion system with mechanical subcooling
(C)
Water
Condenser
Compressor
Evaporator
Water
cooling
tower
Conventional direct expansion system with subcooling heat exchangers and minicooling tower
Figure 11.6
Refrigerant subcooling is an energy-saving alternative to increase the efficiency of the
refrigeration systems.
From Department of Energy (DOE), 2005b.
265
