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RESEARCH PAPERS

A Comparison of Three Years of Performance for Air-to-Air Parallel Solar Heat Pump System in TECH House IV

[+] Author and Article Information
R. L. Reid, A. F. G. Bedinger, B. A. McGraw

Mechanical and Aerospace Engineering Department and Energy, Environment, and Resources Center, University of Tennessee, Knoxville, Tenn.

J. Sol. Energy Eng 107(4), 297-301 (Nov 01, 1985) (5 pages) doi:10.1115/1.3267696 History: Received November 01, 1982; Online November 11, 2009

Abstract

A parallel solar augmented heat pump system has been experimentally evaluated in TECH House IV for three heating seasons between fall 1979 and spring 1982. Several changes were made in the operation of the system during the three year period. During 1979–1980, the use of on-peak purchased energy was minimized by charging the pebble bin in the off-peak period with a resistance duct heater. This configuration resulted in 83 percent of the purchased energy occurring in the off-peak period but the seasonal performance factor was only 1.61. During 1980–1981, the system was operated in the normal mode without the use of the off-peak heater. The seasonal performance factor then increased to 2.56. During 1981–1982, the mode of operation was the same as 1980–1981, but new outer cover sheets were installed and the inner cover sheet was eliminated resulting in a single glazed collector. The seasonal performance factor for the 1981–1982 season was measured to be 2.11.

Copyright © 1985 by ASME
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