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 […]
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 […]
Imagine there was a container with an infinite amount of saturated refrigerant, and this refrigerant was both non-toxic and environmentally friendly. Connecting this container to a compressor inlet would allow pressure control inside the container to a desired setpoint. Since the refrigerant is saturated, adjusting the pressure also changes the refrigerant’s boiling temperature. This allows […]
Opening a thermodynamics textbook, it is stated that the purpose of a refrigeration system is to maintain a cold region at a temperature below the temperature of its surroundings. This can be accomplished by employing a vapor compression refrigeration system. To understand how a vapor compression refrigeration system works, let’s start with a familiar substance…“water”. […]
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