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Air Properties - Imperial Units

Thermodynamic properties of air at low pressures - imperial units.

Some thermodynamic properties of air at low pressure:

Air Properties - Imperial Units
Temperature
- T -
Enthalpy
- h -
(Btu/lbm)
Relative Pressure
pr
Internal Energy
- u -
(Btu/lbm)
(R)(oF)
100 -360 23.7 0.0038 16.9
200 -260 47.7 0.0432 34.0
300 -160 71.6 0.1780 51.0
400 -60 95.5 0.486 68.1
500 40 119.5 1.059 85.2
600 140 143.5 2.00 102
700 240 167.6 3.45 120
800 340 191.8 5.53 137
900 440 216.3 8.41 155
1000 540 241.0 12.3 172
1200 740 291.3 24.0 209
1400 940 342.9 42.9 247
1600 1140 395.7 71.7 286
1800 1340 449.7 114 326
2000 1540 504.7 174 368
2500 2040 645.8 436 475
3000 2540 790.7 941 585

Volumes and Weights of Air at Different Temperatures

  • at atmospheric pressure

Air specific volume and density versus temperature diagram in imperial units

Related Topics

  • Gases and Compressed Air

    Properties of air, LNG, LPG and other common gases. Pipeline capacities and sizing of relief valves.
  • Material Properties

    Properties of gases, fluids and solids. Densities, specific heats, viscosities and more.

Related Documents

  • Air - Thermophysical Properties

    Thermal properties of air at different temperatures - density, viscosity, critical temperature and pressure, triple point, enthalpi and entropi, thermal conductivity and diffusivity and more.
  • Air Properties - SI Units

    Ideal gas properties of air at low pressure - SI units.
  • Prandtl Number

    A dimensionless number approximating the ratio of momentum diffusivity to thermal diffusivity.

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