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THE EFFECT OF SHORT CYCLING AND FAN DELAY ON THE EFFICIENCY OF A MODIFIED RESIDENTIAL HEAT PUMP.

Author(s) : MULROY W. J.

Summary

THE OBJECT OF THE STUDY WAS TO DETERMINE IF THE USE OF A CYCLING CONTROLLER WOULD IMPROVE THE EFFICIENCY OF A RESIDENTIAL AIR CONDITIONER OR HEAT PUMP. CYCLIC TESTS WERE PERFORMED IN 3 CONFIGURATIONS: AS MANUFACTURED, AS MODIFIED TO SIMULATE A NON-BLEED EXPANSION VALVE UNIT BY OPERATION OF A VALVE IN THE LIQUID LINE, AND AS MODIFIED TO SIMULATE AN AIR CONDITIONER BY ELIMINATION OF THE ACCUMULATOR. THE 2 MODIFICATIONS WERE FOUND TO GREATLY IMPROVE THE PERFORMANCE TO ABOUT EQUAL LEVELS ; HOWEVER, SOME CYCLIC LOSSES REMAINED. IT WAS CONCLUDED THAT ANY CONTROL STRATEGY THAT RESULTED IN SHORTENED ON-CYCLE RUN TIMES WOULD REDUCE CYCLIC EFFICIENCY FOR ALL DESIGNS TESTED.

Details

  • Original title: THE EFFECT OF SHORT CYCLING AND FAN DELAY ON THE EFFICIENCY OF A MODIFIED RESIDENTIAL HEAT PUMP.
  • Record ID : 1987-1142
  • Languages: English
  • Publication date: 1986
  • Source: Source: ASHRAE Trans.
    vol. 92; n. 1B; 813-826; 12 fig.; 1 tabl.; 6 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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