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BEFORE AND AFTER METERED DATA AND DAILY LOAD PROFILES OF RETROFIT COMMERCIAL HEAT PUMP WATER HEATERS.

Author(s) : LLOYD A. S., KOHLOSS F. H., ELLIOTT S. P.

Summary

SINCE 1980 ABOUT 200 APARTMENT BUILDINGS, WITH OVER 25,000 APARTMENT UNITS, AND ABOUT 15 HOTELS IN HAWAII HAVE REPLACED THEIR CONVENTIONAL WATER-HEATING SYSTEMS WITH CENTRAL HEAT PUMP WATER-HEATING SYSTEMS. BOTH AIR-TO-WATER AND WATER-TO-WATER HEAT PUMPS ARE UTILIZED WITH ELECTRICALLY DRIVEN RECIPROCATING OR CENTRIFUGAL COMPRESSORS. RECORDERS WERE INSTALLED ON EIGHT OF THESE HEAT PUMP SYSTEMS' SUBMETERS AND THEIR BUILDING SERVICE METERS TO OBTAIN THEIR ENERGY-USE PROFILES. THE FORMER FUEL-FIRED WATER HEATERS USED BETWEEN THREE AND NINE TIMES AS MUCH ENERGY AS THE HEAT PUMPS AND THE SAVINGS PROVIDED REASONABLE PAYBACK FOR THE HEAT PUMP FIRST COSTS.

Details

  • Original title: BEFORE AND AFTER METERED DATA AND DAILY LOAD PROFILES OF RETROFIT COMMERCIAL HEAT PUMP WATER HEATERS.
  • Record ID : 1987-0333
  • Languages: English
  • Publication date: 1985
  • Source: Source: ASHRAE Trans.
    vol. 91; n. 2B; 1463-1472; 5 fig.; 1 tabl.; 3 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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