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Earth-Coupled Water-Source Heat Pump Research, Design and Applications in Louisiana
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An earth-coupled water-source heat pump uses the earth as the thermal source and sink for economical, energy efficient, space heating and cooling. Water exiting the heat pump passes through an earth heat exchanger, which is a closed loop of plastic pipe embedded in the earth, and gains or rejects heat before returning to the heat pump. Three earth heat exchanger configurations have been field tested, and a design method for sizing these to water-source heat pumps for residential and commercial applications has been developed. This paper summarizes the results of the field tests, explains the design method, overviews residential and commercial applications, and compares the economics of earth-coupled water-source heat pump systems to conventional space heating and cooling systems.
Braud, H. J.; Klimkowski, H.; Baker, F. E. (1985). Earth-Coupled Water-Source Heat Pump Research, Design and Applications in Louisiana. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from