The Trouble with Modulating Compressors

By: Michael Camber

Many plants are still running modulating compressors. For many decades, they were the go-to design choice for compressed air systems. Now they’ve mainly been relegated to warming the bench, mostly due to the rise of variable frequency drive (VFD) compressors. While still numerous, they pose problems—especially in the areas of controls and efficiency. If you have multiple modulation control units in your plant, you just might have the makings of an energy savings jackpot. Continue reading “The Trouble with Modulating Compressors”

Mind the Gap

By: Neil Mehltretter

Control Gap Explained

Variable speed control compressors can be an important component of an optimized system provided that it is properly applied.  Variable speed is not, however, a simple panacea for instant compressed air system efficiency. The dynamics of the control must be understood and the machines properly sized. Continue reading “Mind the Gap”