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A design method for commercial ground-coupled heat pumps.

Author(s) : KAVANAUGH S.

Summary

Traditional design methods for ground heat exchangers for ground-coupled heat pump systems were originally intended for residential buildings. A ground-coupled heat pump design method has been developed specifically for commercial buildings. The recommended procedure begins with the zone loads in the building and an approximation of annual equivalent full-load hours in cooling and heating. A computer code has been developed to perform the many computations involved with summing building and ground heat exchange totals. The program selects the heat pump unit required for each zone and provides efficiencies and electrical demand for each zone and for the building total. Once information concerning local ground thermal properties is provided, the required length of ground heat exchanger is calculated. The paper concludes by performing an example design on a seven-zone building.

Details

  • Original title: A design method for commercial ground-coupled heat pumps.
  • Record ID : 1997-1097
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1995/06/24
  • Document available for consultation in the library of the IIR headquarters only.

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