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

Themes: Air conditioning in laboratories and industry;
Chillers
Keywords: South africa; Heat balance; Computer; Calculation; Chiller; Performance; Mine; Air conditioning