Plant engineering calculator · Updated 17 September 2026
Compressed Air Storage Capacity Calculator — Usable Air, Ride-Through & Receiver Volume
Calculate usable free-air storage between two receiver pressures, ride-through time for a net demand, or required receiver volume.
Inputs
Live results
- Usable free air 3.9476931 m³
- Ride-through time 1.9738465 min
- Required volume for 1 minute 1.01325 m³
Formula
Free-air storage=V(Pmax−Pmin)/Patm; time=storage/net demand.
Worked example
A 2 m³ receiver from 8 to 6 bar(g) stores about 3.95 m³ free air at 1.013 bar atmosphere.
Assumptions and limits
- Isothermal storage approximation.
- Net demand is demand minus compressor supply during the event.
FAQs
What does this Compressed Air Storage Capacity Calculator calculate?
Calculate usable free-air storage between two receiver pressures, ride-through time for a net demand, or required receiver volume.
What should I verify before final design?
Verify measured operating data, fluid properties, equipment curves, safety margins and the applicable OEM or engineering standard.
Why are intermediate results shown?
They expose assumptions and make unit, load and operating-condition errors easier to catch.