Small Ammonia Refrigeration Systems

Essentially the ammonia is the chemical that is contained within the system to remove heat from an area and then dissipate it in another area.

Small ammonia refrigeration systems. What trade keeps all our food frozen or cooled so it can safely get to our dinner tables. An ammonia refrigeration system like all vapor compression refrigeration systems are made up of a number of components working together. Assists employers and employees in identifying and controlling the hazards associated with the operation and maintenance of ammonia refrigeration systems. Ammonia refrigeration systems operate in a similar manner to fluorocarbon systems but have several key differences.

Anhydrous ammonia means ammonia without water aqua ammonia is a solution of ammonia and water which is used in refrigeration and air conditioners that are not a vapor compression type. Any water in the system would freeze and obstruct piping so ammonia refrigeration systems must use anhydrous ammonia without water or other impurities. Join building wisconsin host stuart keith as. As a consequence the refrigeration industry has been divided into those dealing primarily with halogenated hydrocarbons using copper tubing and hermetic or semi hermetic compressors and those using ammonia.

People who own or operate ammonia refrigeration processes should stay informed. Dangers of ammonia refrigeration. Vapor compression systems use compressors to compress the ammonia vapor. While you will not usually find an ammonia based system inside a home ammonia is a very toxic substance and the refrigerators are very expensive they are used in factories that need large refrigeration devices that can cool substances very quickly.

Absorption type systems do not use a compressor but instead use a generator. Many of the requirements of the process safety management standard 29 cfr 1910 119 are identified in this. Though they may not be effective in small applications the use of ammonia refrigeration systems in industrial settings is a cost effective and energy efficient choice for companies. The usepa is focusing on smaller refrigeration systems at least in new england and iiar has released new guidance for maintaining refrigeration systems.

In addition most small and medium size refrigeration and heat pump systems using cfcs hcfcs or hfcs have been built using copper tubing. Industrial refrigeration system basics ammonia refrigerant.