A “pumped overfeed” or “recirc system” is similar to the gravity-flooded system in that it utilizes a vessel that was not part of the DX system. In a pumped overfeed system, however, the vessel, often called a “recirculator”, is not located above the evaporator. In fact, the recirculator may be a long distance from the […]
Ammonia Hits The Road in this week’s edition of the Ammonia Week in Review… Anhydrous Smmonia Leak Prompts Hazmat Response in Stark County – The incident involved an anhydrous ammonia release from an agricultural tank/trailer. […keep reading] Refrigeration Cycle: Gravity Flooded Refrigeration System – A “gravity-fed”, or “flooded” refrigeration system has all of the same components as the direct expansion […]
A “gravity-fed”, or “flooded” refrigeration system has all of the same components as the direct expansion system, but utilizes an additional vessel. Whereas the DX system piped the high-pressure liquid through an expansion device and directly into the evaporator, a flooded system is designed so that the liquid leaving the expansion valve is piped to […]
Ammonia Gets Caught In A Ditch in this week’s edition of the Ammonia Week in Review… Ammonia Leak at Bucheon Plant Prompts Road Controls in South Korea – Authorities deployed 14 pieces of equipment and 42 firefighters to carry out safety measures at the scene and controlled nearby roads. […keep reading] Paulding County Farmer Dies After Tractor Hits Ditch, […]
A direct expansion, or DX, refrigeration system is the simplest of the refrigeration cycles. In a DX system high pressure liquid is supplied through an expansion device, directly into the evaporator, hence the name “direct expansion”. As the refrigerant absorbs heat in the evaporator, it boils as it transitions from a liquid to a vapor. […]
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