Horsepower Compress Air Table Chart

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Horsepower Compress Air Table Chart

Hydraulic & Pneumatics
Fluids Design and Engineering Data

Horsepower Required to Compress Air, Single-Stage Compression

Horsepower required to compress one cubic foot of free air per minute (isothermally and adiabatically) from atmospheric pressure (14.7 pounds per square inch) to various gage pressures.

Horsepower Required to Compress Air, Equations and Calculator

Single-Stage Compression, initial temperature of air, 60°F, jacket cooling not considered.

Gage Pressure, Pounds	Absolute Pressure, Pounds	Number of Atmospheres	Isothermal Compression		Adiabatic Compression
Gage Pressure, Pounds	Absolute Pressure, Pounds	Number of Atmospheres	Mean Effective Pressure *	Horsepower	Mean Effective Pressure,* Theoretical	Mean Eff. Pressure plus 15% Friction	Horsepower, Theoretical	Horsepower plus 15% Friction
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 110 120 130 140 150 160 170 180 190 200	19.7 24.7 29.7 34.7 39.7 44.7 49.7 54.7 59.7 64.7 69.7 74.7 79.7 84.7 89.7 94.7 99.7 104.7 109.7 114.7 124.7 134.7 144.7 154.7 164.7 174.7 184.7 194.7 204.7 214.7	1.34 1.68 2.02 2.36 2.70 3.04 3.38 3.72 4.06 4.40 4.74 5.08 5.42 5.76 6.10 6.44 6.78 7.12 7.46 7.80 8.48 9.16 9.84 10.52 11.20 11.88 12.56 13.24 13.92 14.60	4.13 7.57 11.02 12.62 14.68 16.30 17.90 19.28 20.65 21.80 22.95 23.90 24.80 25.70 26.62 27.52 28.21 28.93 29.60 30.30 31.42 32.60 33.75 34.67 35.59 36.30 37.20 38.10 38.80 39.50	0.018 0.033 0.048 0.055 0.064 0.071 0.078 0.084 0.090 0.095 0.100 0.104 0.108 0.112 0.116 0.120 0.123 0.126 0.129 0.132 0.137 0.142 0.147 0.151 0.155 0.158 0.162 0.166 0.169 0.172	4.46 8.21 11.46 14.30 16.94 19.32 21.50 25.53 25.40 27.23 28.90 30.53 32.10 33.57 35.00 36.36 37.63 38.89 40.11 41.28 43.56 45.69 47.72 49.64 51.47 53.70 55.60 57.20 58.80 60.40	5.12 9.44 13.17 16.44 19.47 22.21 24.72 27.05 29.21 31.31 33.23 35.10 36.91 38.59 40.25 41.80 43.27 44.71 46.12 47.46 50.09 52.53 54.87 57.08 59.18 61.80 64.00 65.80 67.70 69.50	0.019 0.036 0.050 0.062 0.074 0.084 0.094 0.103 0.111 0.119 0.126 0.133 0.140 0.146 0.153 0.159 0.164 0.169 0.175 0.180 0.190 0.199 0.208 0.216 0.224 0.234 0.242 0.249 0.256 0.263	0.022 0.041 0.057 0.071 0.085 0.096 0.108 0.118 0.127 0.136 0.145 0.153 0.161 0.168 0.175 0.182 0.189 0.195 0.201 0.207 0.218 0.229 0.239 0.249 0.258 0.269 0.278 0.286 0.294 0.303

* Mean Effective Pressure (MEP) is defined as that single pressure rise, above atmospheric, which would require the same horsepower as the actual varying pressures during compression.