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SOLAR RECHARGING OF MULTIPLE WELL SYSTEMS FOR GROUND COUPLED HEAT PUMPS.

Author(s) : SPANTE L., LARSSON M., OSTERBERG R.

Summary

THE PROGRAMME CARRIED OUT IN SWEDEN INCLUDES 450 DEMONSTRATION PLANT OF WHICH 30 ARE GROUND COUPLED HEAT PUMPS FOR APARTMENT AND SCHOOL BUILDINGS, WITH VERTICAL PIPES IN A MULTIPLE WELL SYSTEM AS THE HEAT SOURCE. IN ORDER TO DECREASE THE REQUIRED BORE-HOLE DEPTHS SOME OF THE SYSTEMS ARE EQUIPPED WITH SIMPLE AIR CONVECTORS OR SOLAR COLLECTORS FOR RECHARGING OF THE WELLS. A PLANT, NEAR STOCKHOLM, CONSISTS OF THREE 100 KILOWATT HEAT PUMP SYSTEMS INSTALLED IN IDENTICAL NEW APARTMENT BUILDINGS. BORE-HOLE DEPTHS AND DEGREE OF RECHARGING DIFFER BETWEEN THE 3 SYSTEMS. THE PLANT SHOWS GOOD ANNUAL PERFORMANCE AND IS MORE COST-EFFECTIVE THAN A CORRESPONDING SYSTEM WITH ELECTRIC BOILERS. MEASUREMENTS AND COMPUTER SIMULATIONS SHOW THAT THE POSITIVE EFFECT OF RECHARGING WITH AIR CONVECTORS IS SMALL.

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Pages: 423-428

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Details

  • Original title: SOLAR RECHARGING OF MULTIPLE WELL SYSTEMS FOR GROUND COUPLED HEAT PUMPS.
  • Record ID : 1988-1633
  • Languages: English
  • Subject: Environment
  • Source: Development in refrigeration, refrigeration for development. Proceedings of the XVIIth international Congress of Refrigeration.
  • Publication date: 1987/08/24

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