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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. […]
Ammonia Tangled in Tragedy in this week’s edition of the Ammonia Week in Review… Ammonia Leak Prompts Evacuations on Burnell Street – Several neighbouring properties were evacuated Monday morning after an ammonia leak was detected at a commercial building on Burnell Street. […keep reading] No Injuries from Ammonia Leak at B.C. Rink – The city says the order […]
A centrifugal compressor operates using the principles of dynamic displacement. Vapor is drawn into the center, or ‘eye’, of a rotating impeller. The vapor exits the impeller and passes through a diffuser, which reduces the vapor velocity. This process converts the kinetic energy of the vapor into pressure energy. The pressurized vapor is collected in a ‘volute’ where it […]