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CALCULATION OF BLOW-HOLE AREA FOR SCREW COMPRESSORS.

Author(s) : SINGH P. J., BOWMAN J. L.

Summary

THE PAPER PRESENTS 3 METHODS TO COMPUTE LEAKAGE TRIANGLE AREA FROM ROTOR AND HOUSING GEOMETRY. ALSO PRESENTED IS THE RELATIVE CONTRIBUTION OF BLOW-HOLE LEAKAGE TO THE OVERALL PERFORMANCE LOSS. THESE RESULTS INDICATE THAT THE LOSS INCREASES RAPIDLY AT LOWER COMPRESSOR SPEEDS. THE LEAKAGE TRIANGLE AREA CAN BE REDUCED TO NEAR-ZERO BY ADJUSTING THE FEMALE ROTOR ADDENDUM AND BY PROPERLY SHAPING BOTH MALE AND FEMALE ROTOR PROFILES AROUND THE PITCH CIRCLE DIAMETER. HOWEVER, THESE CHANGES AFFECT TORQUE TRANSFER AND CARE SHOULD BE EXERCISED THATTHE REDUCED BLOW-HOLE DESIGN DOES NOT RESULT IN TORQUE REVERSALS AND UNSTABLE OPERATION.

Details

  • Original title: CALCULATION OF BLOW-HOLE AREA FOR SCREW COMPRESSORS.
  • Record ID : 1991-2556
  • Languages: English
  • Publication date: 1990/07/17
  • Source: Source: Proc. 1990 int. Compress. Eng. Conf., Purdue Univ.
    vol. 2; 938-948; 10 fig.; 5 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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