A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Thermal enhancement of bentonite grouts for vertical GSHP systems
Vertically-oriented ground-coupling devices for Ground Source Heat Pump (HSHP) systems normally consist of a U-tube arrangement inserted into approximately 150-foot-deep bore holes. The total bore hole depth depends on factors such as heating and cooling load, soil type, local climate and heat pump model. Techniques have been developed for the design and installation of such systems which have resulted in adequate performance, but the cost of installation of these systems has been a barrier to wide-spread utilization. Ideally, the buried heat exchanger should be designed for minimum length, requiring minimal resistance to heat flow between the circulating fluid and the native soil. Composition of backfill material that is placed around the heat exchanger, along with proper backfilling technique, can have great impact on exchanger performance. Thermal performance of the heat exchanger could be enhanced throughout the heating and cooling season with the use of a backfill material that has sustained high thermal conductivity, thus providing an efficient thermal bridge between the heat exchanger and the surrounding native soil.
Thermal enhancement of bentonite grouts for vertical GSHP systems
Vertically-oriented ground-coupling devices for Ground Source Heat Pump (HSHP) systems normally consist of a U-tube arrangement inserted into approximately 150-foot-deep bore holes. The total bore hole depth depends on factors such as heating and cooling load, soil type, local climate and heat pump model. Techniques have been developed for the design and installation of such systems which have resulted in adequate performance, but the cost of installation of these systems has been a barrier to wide-spread utilization. Ideally, the buried heat exchanger should be designed for minimum length, requiring minimal resistance to heat flow between the circulating fluid and the native soil. Composition of backfill material that is placed around the heat exchanger, along with proper backfilling technique, can have great impact on exchanger performance. Thermal performance of the heat exchanger could be enhanced throughout the heating and cooling season with the use of a backfill material that has sustained high thermal conductivity, thus providing an efficient thermal bridge between the heat exchanger and the surrounding native soil.
Thermal enhancement of bentonite grouts for vertical GSHP systems
Erhöhung der thermischen Leistung von Vertikalerdreich-Wärmepumpensystemen mit Hilfe von Bentonitzementierungsmitteln
Remund, C.P. (author) / Lund, J.T. (author)
1993
10 Seiten, 10 Bilder, 10 Tabellen, 22 Quellen
Conference paper
English