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U.S. Department of Energy
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The evaluation of surface geometry modification to improve the directional selectivity of solar energy collectors. Annual progress report, 1 Jan--31 Dec 1974

Technical Report ·
OSTI ID:7351955
The performance of a flat plate solar energy collector can be greatly enhanced with the addition of spectrally (wavelength) and or directionally selective surfaces. Moderately concentrating collectors composed of parallel, east-west oriented, stationary, trapezoidal grooves are discussed. Computer simulations of radiative behavior with direct beam solar incidence are verified by model testing.
Research Organization:
Houston Univ., Tex. (USA). Dept. of Mechanical Engineering
OSTI ID:
7351955
Report Number(s):
PB-244376; UHME/Sol-5; NSF/RANN/SE/GI-41003/PR/74/4
Country of Publication:
United States
Language:
English