This paper gives a short presentation of a method for the computer simulation of noise caused by the gas pulsations, created from the opening and closing of inlet and discharge ports of twin-screw compressors.
The method takes into account influences from lobe combinations, wrap angle, length/diameter ratio, leakage through blowhole and clearances at mesh, rotor tips and discharge end.
Oil content in the gas as well as resonance in
the compressor discharge chamber and downstream piping are also taken into consideration.
Comparisons between calculations and laboratory measurements, as well as analysis of the influence of different design parameters, are presented and discussed.
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