All positive displacement compressors generate pressure by drawing vapor into a compression chamber, sealing the chamber, and then shrinking the volume of the chamber. There are four common types of positive displacement compressors: 1) Screw Compressors 2) Reciprocating (or Piston) Compressors 3) Rotary Vane Compressors; and 4) Scroll Compressors. Screw compressors utilize meshing rotors to force […]
A Plethora of Ammonia News in this week’s edition of the Ammonia Week in Review… IFFCO Paradip Holds Ammonia Leak Mock Drill – IFFCO’s Paradip unit on Wednesday conducted a full-scale on-site emergency mock drill to assess its preparedness and strengthen coordinated response mechanisms for handling potential industrial emergencies. […keep reading] Oliver Fire Department Responds to Possible Ammonia […]
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 […]
No Harm No Foul in this week’s edition of the Ammonia Week in Review… Ammonia Leak Forces Evacuation in Northwest Miami-Dade, Cause Still a Mystery – An ammonia leak sent Miami-Dade Fire Rescue crews racing to Northwest 77th Avenue and 31st Street Saturday morning, prompting evacuations in the heavily industrial corridor without a single reported injury. […keep reading] […]
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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