// multi-utility computation suite · offline · instant · precise
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eng.air-compressor-work Calculator
Calculates isentropic compressor work, polytropic work, and actual work accounting for isentropic efficiency. Real compression deviates from isentropic due to friction and heat exchange — polytropic efficiency is the more physically meaningful metric for multistage compressors.
Inputs
Inlet Pressure Kpa
Force per unit area (Pa). Atmospheric pressure at sea level: 101,325 Pa. Check whether gauge or absolute pressure is required.
Outlet Pressure Kpa
Force per unit area (Pa). Atmospheric pressure at sea level: 101,325 Pa. Check whether gauge or absolute pressure is required.
Inlet Temp C
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Mass Flow Kg S
Volume of fluid per unit time. Used to size pipes, pumps, and ducts.
Isentropic Efficiency Pct
Useful output divided by total input, as a percentage. 100% is impossible due to losses (heat, friction, resistance).
Results
actual shaft work (kW)
Reference formula or conversion factor shown for context.
isentropic work (kW)
Sample size or count used in the calculation.
isentropic outlet temp T₂s (K)
Sample size or count used in the calculation.
actual outlet temp T₂ (K)
Reference formula or conversion factor shown for context.
compression ratio
The computed compression ratio or compressive force. Higher compression ratios store more energy but increase heat and pressure.