Development and optimization of screw engine rotor pairs on the basis of computer modelling.

Author(s) : STOSIC N., HANJALIC K.

Summary

The paper presents some results in the development of new lobe profiles for the main and gate rotors of a screw compressor, based on the computer modelling of the compression process. The new profile, featured by slenderer gate lobes, as compared with standard asymetric SRM profiles, yields larger cross-sectional flow areas, enabling higher delivery rates for the same tip speeds. The profile has also shorter sealing lines resulting in lower leakages. The paper outlines the adopted rationale and method of modelling, compares the shapes of new and conventional profiles and illustrates potential improvements achieved with the new design in application to dry and oil-flooded air compressors as well as to refrigerating screw compressors.

Details

  • Original title: Development and optimization of screw engine rotor pairs on the basis of computer modelling.
  • Record ID : 1995-0871
  • Languages: English
  • Source: Proceedings of the 1994 International Compressor Engineering Conference at Purdue.
  • Publication date: 1994/07/19
  • Document available for consultation in the library of the IIR headquarters only.

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