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ASPECTS OF ENERGY MINIMIZATION IN WATER CHILLER SYSTEMS.

Author(s) : BREDA-SMITH M. van

Summary

THE MAIN SOURCES OF IRREVERSIBILITY AND HENCE SHAFT POWER INCREASE IN TYPICAL LARGE CHILLED WATER SYSTEMS ARE HEAT EXCHANGER LOSSES, COMPRESSOR INEFFICIENCY, AND IRREVERSIBLE EXPANSION. FOULING RESISTANCE IS PARTICULARLY IDENTIFIABLE AS A SOURCE OF LOST WORK FLUX. A STAGEWISE WATER FLASH CHILLING SYSTEM IS PROPOSED TO REDUCE ENERGY LOSSES. THE SERIES CASCADING OF CHILLERS IS ANALYZED AND FOUND TO BE PRACTICALLY BENEFICIAL. ANY ARBITRARILY LOW SINK TEMPERATURE CAN BE REACHED WITH FINITE QUANTITIES OF AIR AND WATER WITHOUT THE CONSUMPTION OF POWER, AND THEREFORE CHILLED WATER CAN BE THEORETICALLY PRODUCED WITHOUT POWER INPUT AT ALL, GIVEN THE AVAILABILITY OF UNLIMITED QUANTITIES OF WATER AND UNSATURATED AIR. THIS FACT SHOULD BE A STIMULUS TO THE STUDY OF COOLING TOWER SYSTEMS FOR THERMODYNAMIC IMPROVEMENT.

Details

  • Original title: ASPECTS OF ENERGY MINIMIZATION IN WATER CHILLER SYSTEMS.
  • Record ID : 1987-0942
  • Languages: English
  • Publication date: 1986/04/14
  • Source: Source: Frigair '86, Pretoria
    vol. 1; n. 7; 8 p.; 7 fig.; 4 tabl.; 8 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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