Energy Efficiency of an Oil Injected Screw Compressor Operating at Various Discharge Pressures

The oil injected-screw compressor is a volumetric machine with positive displacement that achieves the compression by gradually reducing the volume of gas trapped between two helical meshing rotors and the casing. For those compressors with fix volume ratio the theoretical discharge pressure represents the pressure that will be obtained in the compressor independently of the system discharge press...