Summary In July 2017, the termination of a relief valve to the atmosphere resulted in a release of approximately 1,500 lbs of ammonia, and four personnel injuries. Proper operating procedures were not followed during a seasonal startup of the ammonia system. Several mistakes were made which resulted in the high pressure receiver overpressurizing, and the […]
Summary In September 2016, the development of a small hole in the wall of an ammonia suction pipe resulted in a release of 15 lbs of ammonia. Neglected insulation breaches allowed moisture to accumulate on carbon steel piping. This resulted in corrosion and eventually, a pinhole developed in the wall of the pipe. Release Calculation […]
Summary In December 2022, a falling piece of ice broke off a ¾” ammonia charging connection on a high pressure receiver. This resulted in a release of approximately 2,375 lbs of ammonia. Incident Description Extreme weather conditions resulted in excessive ice buildup under the condenser platform. The high pressure receiver was located under the condenser […]
Summary In June 2023, the vibration of an evaporator over a long period of time allowed exposed electrical wiring to cause an arc flash that ruptured a distribution tube. This resulted in two (2) injuries and a release of approximately 11 lbs of ammonia. Incident Description The direct-expansion evaporator was equipped with an electric heater […]
Large Scale Releases in this week’s edition of the Ammonia Week in Review… Ammonia Leak at Virginia Food Plant Sends 33 Workers to Hospitals – Of the 33 who were hospitalized, 22 were initially in serious condition, while 11 more had minor symptoms, fire officials said. […keep reading] Ammonia Leak at Mass. Business Sends 7 to Hospital – […]
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