The incidence of accidents and fatalities involving ammonia refrigeration is extraordinarily low compared to other risks in society. There is a general unawareness of this, with society pronouncing ammonia, with its heavy, pungent smell, as both dangerous and frightening. This paper explains why ammonia far exceeds its reputation. When designers and users of ammonia for refrigeration, heat pumps and ORC processes consider all safety codes, standard and legal regulations they conclude that ammonia is a safe and profitable refrigerant.
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