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2 TRG-TRC016-EN
notes
period one
Types of Water Chillers
Water chillers using the vapor-compression refrigeration cycle vary by the type
of compressor used. Reciprocating, scroll, helical-rotary, and centrifugal
compressors are common types of compressors used in vapor-compression
water chillers.
Absorption water chillers make use of the absorption refrigeration cycle.
Vapor-compression water chillers use a compressor to move refrigerant around
the system. The most common energy source to drive the compressor is an
electric motor.
Absorption water chillers use heat to drive the refrigeration cycle. They do not
have a mechanical compressor involved in the refrigeration cycle. Steam, hot
water, or the burning of oil or natural gas are the most common energy sources
for these types of chillers.
Driving Sources
heat-driven
compressor-driven
Figure 4