Recent Blog Posts
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 […]
Ammonia Curbs Production in this week’s edition of the Ammonia Week in Review… Two Ammonia Leaks Occur at Facility in Delaware – The leak was caused when one of the building’s cooling systems “experienced a temporary breakdown … which led to a release of ammonia involving a flange failure. […keep reading] Refrigeration Cycle: Building a Vapor Compression System – Imagine […]
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 […]