ABSTRACT
Chapter 12 covered the methods commonly used to analyze heat exchanger performance, while Chapter 14 provided a description and analysis equations relevant to practical vapor compression refrigeration and heat pump cycles and systems. In this chapter, we cover the major components and equipment of cooling systems. The various important generic types of compressors, namely, reciprocating, rotary, scroll, screw, and centrifugal, are first described and an intercomparison made. Next, we describe the different types and operating principles of expansion devices, evaporators, and condensers and their practical applications are discussed. We then address the performance of heating coils followed by a theoretical treatment of cooling coils, under both dry and wet operations. Finally, a description of cooling tower operation follows, with an in-depth theoretical analysis along with an illustrative example. Elements over which the HVAC designer has little control (e.g., the internal design of a compressor or expansion device) are not discussed in detail in this chapter.
