Heat extraction from two tube planes and roof absorber. Operating experience with a monovalent earth heat pump installation with a small area of earth for heat extraction
Abstract
From experimental experience suggestions were derived for equipment for development of the heat sources of earth and outside air. The size of the heat exchanger is to be determined by the heat extraction by the heat pump. Suggested tube layouts are fitted to the various methods of operation. The most efficient methods of cost reduction for the earth heat source are small distances between tubes (30 to 10 cm) and a 2-layer arrangement. The additional use of a large-area absorber without forced convection in unfurnished attics provided and indication the earth heat pumps are widely applicable to well thermally insulated single-and multiple-family houses. The area of earth from which heat is extracted can in this case be reduced to 50% of the heated living area.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- January 1982
- Bibcode:
- 1982STIN...8220641R
- Keywords:
-
- Cooling Systems;
- Design Analysis;
- Heat Exchangers;
- Heat Pumps;
- Air Conditioning;
- Heat Transfer;
- Heating Equipment;
- Tube Heat Exchangers;
- Energy Production and Conversion