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Compressor Power Calculator

Calculate compressor horsepower for gas compression using isentropic compression equations. Covers single and multi-stage reciprocating and screw compressors.

Input Parameters

Gas Flow Rate (MMSCFD)

Suction Pressure (psia)

Discharge Pressure (psia)

Suction Temp (°F)

Gas Specific Heat Ratio (k)

Isentropic Efficiency (%)

Gas Molecular Weight

Z Factor (compressibility)

Results

Required HP

Power (kW)

Compression Ratio

Recommended Stages

Discharge Temp (°F)

HP/MMSCF

Reference

Natural gas k: 1.25-1.30

CO2 k: 1.30

Max ratio/stage: ~4:1

Max discharge temp: 300°F