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ANNUAL PERFORMANCE OF A HORIZONTAL-COIL GROUND-COUPLED HEAT PUMP.

Author(s) : JOHNSON W. S.

Summary

PERFORMANCE OF THE GROUND-COUPLED HEAT PUMP SYSTEM HAS BEEN MEASURED FOR COOLING AND HEATING SEASONS. HOURLY MEASUREMENTS OF HEAT FLOWS, POWER CONSUMPTIONS, AND VARIOUS GROUND, SPACE, AND SYSTEM TEMPERATURES HAVE BEEN RECORDED AND ANALYZED TO GIVE OVERALL SEASONAL PERFORMANCE. FOR THE HEATING SEASON, THE PERFORMANCE FACTOR WAS FOUND TO BE 2.6, WHICH IS HIGHER THAN A TYPICAL AIR-AIR SYSTEM AND FOR THE COOLING SEASON ONLY 1.1, CONSIDERABLY LOWER THAN A TYPICAL AIR-AIR SYSTEM. REASONS FOR THIS LOW PERFORMANCE IN THE COOLING MODE INCLUDE POOR BACKFILLING PROCEDURE WHEN THE GROUND COIL WAS BURIED, SOIL DRYING, AND POSSIBLY TOO SHORT A GROUND COIL. ALSO, THE HEAT PUMP SYSTEM ITSELF HAD A LOW COP.

Details

  • Original title: ANNUAL PERFORMANCE OF A HORIZONTAL-COIL GROUND-COUPLED HEAT PUMP.
  • Record ID : 1987-0716
  • Languages: English
  • Publication date: 1986
  • Source: Source: ASHRAE Trans.
    vol. 92; n. 1A; 173-185; 5 fig.; 4 tabl.; 12 ref.; append.
  • Document available for consultation in the library of the IIR headquarters only.

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