With ammonia, because fewer pounds of refrigerant are required to do the same amount of work, generally speaking, the lower a facility’s temperature requirements, the more cost-effective ammonia becomes. While ammonia’s benefits are numerous, its dangers cannot be trivialized. This means that, if released, ammonia can be a danger to the immediate environment. As a refrigerant, ammonia has four major advantages over CFCs and HCFCs: Concerns, Cautions and Considerations. Household ammonia, by comparison, is only about 10% ammonia by weight mixed with water. Refrigerant grade anhydrous ammonia is a clear, colorless gas or liquid and about 99.95% pure. The odor of ammonia is widely recognized. Any business operating a chiller with ammonia is … Ammonia refrigeration works much like Industrial Refrigeration systems using synthetic refrigerants, with the major exception being that it uses anhydrous ammonia as the refrigerant. These units can vary in complexity and effectiveness, but generally are capable of operating continuously. There are certain risks resulting from ammonia for refrigeration systems. Exposure to 300 ppm is immediately dangerous to life and health. Ammonia is classified as a Water Hazard Class 2 substance. Sometimes called ammonia regenerators, can be integrated directly into the refrigeration system. The purity of the anhydrous ammonia is vital to the properties that make it a good refrigerant. ammonia refrigeration systems to gather information on safety practices and technologies and to share its knowledge with these facilities. However, the danger always exists that exposure will occur due to a leak or catastrophic release of Anhydrous Ammonia from a refrigeration system. Problematic procedures may be to blame. Ammonia, frequently used commercially in large freezing and refrigeration plants is also called “anhydrous ammonia” because it contains almost no water (it is 99.98% pure). Last month, a 5000 pound ammonia leak occurred at a Boston-area seafood warehouse that killed one worker and forced a shelter-in-place order from Boston Police. The ammonia refrigeration process has seen little change since the early 20th century. In addition, over the past 2 years, Region III has It is used to create a cool environment that helps keep products fresh and prevent bacterial growth. The Dangers of Ammonia. Region III has conducted more than 135 chemical safety audits from 1995 to the present of both large and small facilities using ammonia for refrigeration. Ammonia is considered a high health hazard because it is corrosive to the skin, eyes, and lungs. Refrigerant grade anhydrous ammonia is a clear colorless gas or liquid and is considered an irritant. in the workplace. The true danger from ammonia occurs when a person is unable to leave a gaseous ammonia environment, and when the liquid comes in contact with the body, particularly the eyes. 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