Compressed Air Leak Cost & Orifice Calculator
Quantify compressed air leakage flow rate through sonic orifices, annual kilowatt-hour electrical waste, utility dollar costs, and CO2 emissions.
Leak Orifice Size & Line Pressure
Electricity Tariff & Operating Schedule
Annual Financial & Power Loss
Environmental & Equivalent Impact
Ultrasonic Leak Survey Payback
Recommended Tools & Equipment
Tested hardware and components for high reliability
Frequently Asked Questions
Why is compressed air often described as the most expensive utility in a plant?
Compressing atmospheric air to 100 psig is inherently inefficient from a thermodynamic standpoint. Only about 10% to 15% of the electrical energy supplied to an air compressor translates into usable compressed air mechanical work; the remaining 85% to 90% is converted directly into waste heat. Therefore, every CFM leaked represents pure discarded electricity.
Why is air leakage velocity through an orifice sonic (choked flow)?
Whenever the upstream absolute line pressure exceeds approximately 28 psia (about 13 psig) discharging into atmospheric air, the critical pressure ratio (0.528 for air) is exceeded. This forces the air velocity at the leak orifice throat to reach Mach 1 (the speed of sound, ~1,125 ft/s).
Where are the most common air leaks found in industrial plants?
Audits consistently identify leaks at: (1) quick-connect couplings and hose disconnects with worn internal O-rings, (2) push-to-connect plastic fittings with misaligned tubing, (3) failed mechanical float condensate drains stuck open, (4) leaking FRL (filter-regulator-lubricator) bowl seals, and (5) worn solenoid valve spools.
How does ultrasonic acoustic detection find leaks in noisy manufacturing environments?
High-velocity turbulent air escaping through small orifices generates high-frequency ultrasonic acoustic noise between 38 kHz and 42 kHz. Ultrasonic leak detectors filter out low-frequency factory machinery noise, allowing technicians to pinpoint tiny 1/64" leaks from 30 feet away while the plant operates at full production.