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THE DESIGN AND INSTALLATION OF A LARGE CAPACITY PLANT FOR LOW TEMPERATURE MINE AIR COOLING.

Author(s) : BAKER-DULY H. C. L.

Summary

OPERATIONAL REQUIREMENTS OF COOLING AIR FROM 293 K (20 DEG C) DRY BULB AND 287 K (14 DEG C) WET BULB TO 279 K (6 DEG C) SATURATED OR BELOW DICTATED THE USE OF SCREW RATHER THAN CENTRIFUGAL COMPRESSORS, WHICH WERE TO OPERATE AT THE LOWEST POSSIBLE DISCHARGE PRESSURE. AN EVAPORATIVE CONDENSER OF DOUBLE THE USUAL SIZE WAS FITTED TO MAINTAIN A CONDENSING TEMPERATURE OF 303 K (30 DEG C) AT A WET BULB TEMPERATURE OF 295 K (22 DEG C). SPIRAL GILLED TUBE EVAPORATORS WERE CHOSEN WITH TWO AMMONIA SCREW COMPRESSORS ON THE FIRST STAGE AND ONE ON THE SECOND STAGE. ABOUT 8,000 KG OF WATER CONDENSES FROM THE DOWN CAST AIR AND THIS IS COLLECTED AND RETURNED TO THE CONDENSERS. THE TOTAL COOLING LOAD AT 295 K (22 DEG C) WET BULB WAS 23.8 MW WITH AN OUTLET AIR TEMPERATURE OF BETWEEN 272.5 AND 279 K (-0.5 AND 6 DEG C). THE ARTICLE ALSO CONSIDERS THE VARIOUS SAFETY ASPECTS OF THE PLANT. G.R.S.

Details

  • Original title: THE DESIGN AND INSTALLATION OF A LARGE CAPACITY PLANT FOR LOW TEMPERATURE MINE AIR COOLING.
  • Record ID : 1988-0746
  • Languages: English
  • Publication date: 1986/04/14
  • Source: Source: Frigair '86, Pretoria
    vol. 1; n. 17; 6 p.; 2 fig.
  • Document available for consultation in the library of the IIR headquarters only.

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