Filter
Top Products
2 TRG-TRC012-EN
notes
Introduction
Water chillers using the vapor-compression refrigeration cycle vary by the type
of compressor used. Reciprocating and scroll compressors are typically used in
smaller chillers. Helical-rotary (or screw) compressors are typically used in
medium-sized chillers. Centrifugal compressors are typically used in larger
chillers.
As mentioned earlier, this particular clinic discusses helical-rotary water
chillers.
Helical-rotary water chillers can be either air-cooled or water-cooled, referring
to the method of rejecting heat to the atmosphere. Both air-cooled and water-
cooled helical-rotary chillers are generally available from 70 to 450 tons [200 to
1500 kW].
The primary focus in Period 1 is on the water-cooled chiller, although it includes
some discussion of air-cooled chiller components. A comparison of air-cooled
versus water-cooled chiller applications is included in Period 5.
air-cooled
water-cooled
Helical-Rotary Water Chillers
Figure 4