Mathematical Analysis of Oil injected Twin Screw Compressor

Abstract

Mathematical analysis of oil injected twin screw compressor is carried out on the basis of the laws of perfect gas, and standard thermodynamic relations. Performance of an oil injected twin-screw compressor depends on a large number of design parameters. A computer model for calculating compressor performance and to validate the results with experimental data is developed. The flow coefficients required to calculate leakage flow rates for simulation are obtained from efficiency versus clearance curves. Some numerical examples of P-V diagrams, influences of oil injection on volumetric efficiency etc for a given compressor are presented.