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REFRIGERATION SYSTEM DYNAMICS DURING THE REVERSE CYCLE DEFROST.

Author(s) : O'NEAL D. L.

Summary

THE OBJECTIVE OF THE RESEARCH WAS TO CHARACTERIZE THE DYNAMIC RESPONSE OF AN AIR-SOURCE HEAT PUMP DURING THE REVERSE CYCLE DEFROST. THE TEST SETUP CONTAINED A NOMINAL 10.5 KILOWATT CAPACITY RESIDENTIAL AIR-TO-AIR HEAT PUMP THAT USED A THERMAL EXPANSION VALVE FOR EXPANSION DURING THE DEFROST. MEASUREMENTS MADE OF REFRIGERANT TEMPERATURE AND PRESSURE THROUGHOUT THE SYSTEM, REFRIGERANT FLOW RATES, AIR-SIDE CAPACITY, COMPRESSOR/OUTDOOR FAN POWER, AND REFRIGERANT LEVEL IN THE ACCUMULATOR. A DETAILED DESCRIPTION OF THE PHYSICAL PROCESSES THAT OCCUR DURING A DEFROST ARE PROVIDED.

Details

  • Original title: REFRIGERATION SYSTEM DYNAMICS DURING THE REVERSE CYCLE DEFROST.
  • Record ID : 1991-0376
  • Languages: English
  • Publication date: 1989
  • Source: Source: ASHRAE Trans.
    vol. 95; n. 2; 689-698; 12 fig.; 2 tabl.; 14 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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