Handbook of air conditioning and refrigeration / Shan K

13.4 CHAPTER THIRTEEN
FIGURE 13.2 A two-stage centrifugal compressor. (Source: Carrier Corporation. Reprinted with permission.)
System Components
Because centrifugal compressors are reliable and energy-efficient for water-cooled chillers, they
are the most widely used refrigeration compressors in large central air conditioning systems.
Evaporator. A flooded shell-and-tube evaporator, as described in Sec. 10.3, is usually used for a
centrifugal chiller because of its compact size and high heat-transfer characteristics.
Condenser. Water-cooled, horizontal shell-and-tube type of condensers, as described in Sec. 10.6,
are widely used because of their lower condensing pressure and easier capacity control. Only in
locations where local codes prohibit the use of city water as the makeup water in cooling towers are
air-cooled centrifugal chillers adopted.