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Title:
The continuing performance of the USAF Academy retrofit solar house
Authors:
Cornelius, K. A.; Benson, J. D.
Affiliation:
AA(U.S. Air Force Academy, Colorado Springs, CO), AB(U.S. Air Force Academy, Colorado Springs, CO)
Publication:
In: Solar engineering - 1981; Proceedings of the Third Annual Conference on Systems Simulation, Economic Analysis/Solar Heating and Cooling Operational Results, Reno, NV, April 27-May 1, 1981. (A82-44301 22-44) New York, American Society of Mechanical Engineers, 1981, p. 28-35.
Publication Date:
00/1981
Category:
Energy Production and Conversion
Origin:
STI
NASA/STI Keywords:
Performance Tests, Residential Energy, Retrofitting, Solar Houses, Space Heating (Buildings), Colorado, Energy Conservation, Heat Exchangers, Solar Collectors, Winter
Bibliographic Code:
1981soen.proc...28C

Abstract

Performance results of the installation of energy conservation and flat plate collector retrofits to a U.S. Air Force standard serviceman's house are reported. Solar collectors were emplaced on the roof and in the back yard, and a 2500 gal underground thermal storage tank was included in the system. Urea formaldehyde foam was injected into the wall and blown into the attic, while three-inch thick fiberglass batts were added between floor joists over the crawl space. The heating load decreased 30% after the installation of insulation. The collector ground array was tested for effectiveness at different inclination angles, which were found to have a negligeable impact on system performance. Collection efficiencies increased significantly with the use of tubular flat plate collectors. The solar fraction of the heating load increased to 60%, maximum, with the tubular collectors. It is noted that the system performance was highest when the building was inhabited.
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