Compressed air: cycling stations, pressure held high to be safe
Why compressed-air stations waste power with cycling compressors, high pressure and leaks, and how to check predictive station control from existing data.
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Compressors cycle and pressure is kept high to be safe
What happens. A compressed-air station has several compressors that start, load, unload and stop by simple pressure thresholds. To avoid pressure drops at the machines, the setpoint is set high. The compressors take turns without a plan for the next minutes.
What it costs. Power for unloaded running, for pressure that no consumer needs, and for compressor starts that wear the machines.
Why the usual fix fails. Lowering the pressure by hand until someone complains finds the limit by trial and error. A master controller with fixed thresholds still reacts after the pressure has moved. More receiver volume costs space and does not change the logic.
How a fixed-price remote diagnosis checks it. From station logs (pressures, flows, compressor states, power) I look at the demand pattern, how much of the energy goes into unloaded running and which pressure the consumers really need. The fixed-price remote diagnosis tells you whether predictive sequencing with a lower pressure band would save power on your station.
Background: Economic predictive control
Leaks and excess pressure eat a large share of compressed-air energy
What happens. Compressed air is among the first things an energy audit looks at. Leaks and excess pressure account for a large part of the losses, and both are invisible in daily operation. A small leak whistles only when the hall is quiet.
What it costs. Power for air that never reaches a tool, extra compressor capacity bought to cover losses, and audit measures that are done once and fade.
Why the usual fix fails. A leak hunt with an ultrasonic device finds leaks for a week. Lowering the pressure once keeps the station running high on bad days. Without a continuous view, the savings of an audit slip back.
How a fixed-price remote diagnosis checks it. From the station’s flow and pressure data at night and weekends I estimate the leakage level and its development, and compare the pressure with what the consumers need. The fixed-price remote diagnosis tells you whether predictive control of the station and the pressure can hold the savings permanently.
Background: Economic predictive control
Check it on your plant first: a fixed-price remote diagnosis
EUR 4,500 net · 5 working days · remote · availability on request · freelance or through temporary agency work
Within a fixed scope and at a fixed price, I review your data, control structure and measurements remotely and tell you whether the problem on this page is behind your symptoms and what fixing it would take. You get a short summary for decision-makers and a technical report for your engineers.