COMPUTER MODELLING OF PERFORMANCE OF CENTRIFUGAL WATER CHILLERS IN MINE REFRIGERATION INSTALLATIONS.
Author(s) : GROLLIUS H., MEYER C., BAILEY-MCEWAN M.
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.
Indexing
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Themes:
Air conditioning in laboratories and industry;
Chillers - Keywords: South africa; Heat balance; Computer; Calculation; Chiller; Performance; Mine; Air conditioning
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