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INVESTIGATION OF CONTROL ALTERNATIVES FOR A STEAM TURBINE DRIVEN CHILLER.

Author(s) : KLEIN S. A., NUGENT D. R., MITCHELL J. W.

Summary

THE SUBJECT OF THE PAPER IS A LARGE CENTRAL PLANT WITH A STEAM TURBINE DRIVEN CHILLER WHOSE REFRIGERANT COMPRESSOR IS EQUIPPED WITH BOTH VARIABLE SPEED AND VARIABLE VANE CONTROL. THE COOLING TOWERS ARE MULTICELL WITH BOTH ONE-AND TWO-SPEED FANS. THE PRIMARY GOAL OF THE PROJECT WAS TO FIND WAYS TO REDUCE THE OVERALL OPERATING COSTS OF THE CHILLER PLANT. TO STUDY THE MANY DIFFERENT OPTIONS AND TO ASSESS THEIR COSTS AND BENEFITS, A COMPUTER SIMULATION OF THE CHILLER PLANT WAS DEVELOPED. THE CONTROL AND EQUIPMENT MODIFICATIONS INVESTIGATED INCLUDE ALTERNATIVE FAN SPEED AND TOWER CELL SEQUENCING, DIFFERENT FAN MOTOR SPEEDS, DIFFERENT CONDENSER WATER FLOW RATES, FREE COOLING, AND THE EFFECT OF TOWER AIR OUTLET RECIRCULATION.

Details

  • Original title: INVESTIGATION OF CONTROL ALTERNATIVES FOR A STEAM TURBINE DRIVEN CHILLER.
  • Record ID : 1989-0935
  • Languages: English
  • Publication date: 1988
  • Source: Source: ASHRAE Trans.
    vol. 94; n. 1; 627-643; 11 fig.; 7 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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