The most common type of screw compressor is the ‘rotary screw compressor’. This type of compressor utilizes two rotors which are often called helical screws. One screw is designated the “male” screw and the other is a “female” screw. Vapor is drawn into the screw and captured in the space between the screws. The screws are precisely […]
Ammonia Disturbs Production in this week’s edition of the Ammonia Week in Review… Ammonia Leak at Turkish Poultry Plant Hospitalises 15 Workers – Fifteen workers were taken to hospital after an ammonia gas leak at a poultry slaughtering facility in Sakarya, north-west Turkey, on 28 August 2026. The release happened during routine maintenance. […keep reading] Refrigeration Cycle: Reciprocating Compressors […]
Reciprocating compressors are the most common type of refrigeration compressor. The design of reciprocating compressors since their adoption in the mid-1800s is similar to that of a car engine. In a “recip”, compression is accomplished in the same manner as a bike pump. When the piston is pulled to one end, the cylinder volume increases and […]
Just as the second law of thermodynamics states, there must be a temperature difference for heat exchange to occur, so there must be a pressure difference for fluid flow to occur. Because of friction, as a fluid moves through a pipe, it will lose some pressure, which results in a ΔP. ‘Δ’ (pronounced “Delta”) is […]
The ideal vapor compression cycle assumes that pure refrigerant is being used, such as ammonia. Unfortunately, in the “real world,” noncondensable gases can find their way into a system. A “noncondensable gas” is an undesired foreign gas that is in the system. It travels through the cycle with the refrigerant, but it does not assist […]
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