COMPUTER MODELLING OF PERFORMANCE OF CENTRIFUGAL WATER CHILLERS IN MINE REFRIGERATION INSTALLATIONS.

Summary

COOLING OF DEEP MINES IS ACHIEVED THROUGH CHILLED WATER, PRODUCED IN CENTRAL WATER CHILLING INSTALLATIONS. THE REFRIGERATION DUTY IS SELDOM CONSTANT. THEREFORE, A COMPUTER PROGRAM TO PREDICT OFF-SPECIFICATION BEHAVIOUR OF COMPLETE INSTALLATIONS WOULD BE OF GREAT USE IN ARRIVING AT THE PROPER BALANCE OF VIRTUES REQUIRED. THE FIRST PHASE IN THE DEVELOPMENT OF SUCH A PROGRAM IS DESCRIBED WITH SUB-PROGRAMS FOR PREDICTING THE BEHAVIOUR OF PACKAGED SINGLE-AND TWO-STAGE CENTRIFUGAL WATER CHILLERS. THESE PROGRAMS CAN BE APPLIED TO PRODUCE OPERATING RANGE MAPS, SUPERIMPOSED ON THE COMPRESSOR CHARACTERISTIC CURVES, WHICH INDICATE CHILLER BEHAVIOUR OVER A RANGE OF POSSIBLE DUTIES. THESE MAPS ENABLE DAILY AND ANNUAL CHILLER PERFORMANCE TO BE CALCULATED WITH CONSIDERABLE CERTAINTY.

Details

  • Original title: COMPUTER MODELLING OF PERFORMANCE OF CENTRIFUGAL WATER CHILLERS IN MINE REFRIGERATION INSTALLATIONS.
  • Record ID : 1987-1128
  • Languages: English
  • Publication date: 1986/04/14
  • Source: Source: Frigair '86, Pretoria
    vol. 1; n. 19; 8 p.; 7 fig.; 1 tabl.; 8 ref.
  • Document available for consultation in the library of the IIR headquarters only.