R02 -- Ammonia Refrigeration Systems - (SI)

Custom-engineered ammonia (R-717) refrigeration systems often have design conditions that span a wide range of evaporating and condensing temperatures. Examples are (1) a food freezing plant operating from 50 to 50F (10 to 45C); (2) a candy storage requiring 60F (15C) db with precise humidity control; (3) a beef chill room at 28 to 30F (2 to 1C) with high humidity; (4) a distribution warehouse requiring multiple temperatures for storing ice cream, frozen food, meat, and produce and for docks; and (5) a chemical process requiring multiple temperatures ranging from 60 to 60F (15 to 50C). Ammonia is the refrigerant of choice for many industrial refrigeration systems. The figures in this chapter are for illustrative purposes only, and may not show all the required elements (e.g., valves). For safety and minimum design criteria for ammonia systems, refer to ASHRAE Standard 15, IIAR Bulletin 109, IIAR Standard 2, and applicable state and local codes. See Chapter 24 for information on refrigeration load calculations.

Chapter Table of Contents

System Selection
Equipment
Controls
Piping
Reciprocating Compressors
Rotary Vane, Low-Stage Compressors
Screw Compressors
Condenser and Receiver Piping
Evaporative Condensers
Evaporator Piping
Multistage Systems
Liquid Recirculation Systems
Safety Considerations

Citation: 2010 ASHRAE Handbook -- Refrigeration: Chapter 2, Ammonia Refrigeration Systems



Product Code(s): D-R022010SI