Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

TECH House I horizontal coil ground coupled heat pump: 1982-1983 heating season performance

Technical Report ·
OSTI ID:5279292
A ground-coupled heat pump (GCHP) system having a 200 m (675 ft) horizontal serpentine ground coil was installed at the Tennessee Energy Conservation in Housing (TECH) facility. Experimental results for the 1982-1983 heating season showed a heating seasonal performance factor (SPF) of 2.60. Had the system been located outside the conditioned space the SPF would have been 2.04. No auxiliary electric heat was required. Soil temperature measurements indicate that the ground near the pipe never went below 0/sup 0/C. A discussion of soil moisture measurement techniques and devices is included. Moisture sensors have been installed near the coil and will be used to determine drying trends during the 1983 cooling season.
Research Organization:
Tennessee Univ., Knoxville (USA). Energy, Environment and Resources Center
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
5279292
Report Number(s):
ORNL/Sub-81-7685/1and92; ON: DE84007918
Country of Publication:
United States
Language:
English