Actions for Solar intensity distribution in the upper hemisphere on a clear day near noon. Final report

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Solar intensity distribution in the upper hemisphere on a clear day near noon. Final report

Author
Fowlkes, C. W.
Published
United States : [publisher not identified], 1981
Springfield, Va.: National Technical Information Service, [approximately 1981]
Physical Description
microfiche : negative ; 11 x 15 cm

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Summary
The goal of this project was to measure solar radiation (quasi) simultaneously at 144 positions of tilt and azimuth in the upper hemisphere. The apparatus consisted of a solar radiometer fixed to an articulating mechanism driven by stepping motors which were controlled by a low-cost microcomputer. At each 15/sup 0/ increment of altitude and azimuth, the radiant flux was sensed by the radiometer and the resulting electrical output digitized and stored in the computer. The upper hemisphere was scanned once each 30 seconds. At the end of each hour, the solar radiation measured in each direction was averaged and the result stored on magnetic tape. The data base consists of hourly averages of the solar flux on each of 144 planes. This paper describes the experimental apparatus and presents the results.
Report Numbers
DE85013339; DOE/R8/03056-T1
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: FG48-81R803056
OSTI Identifier 5465294
Research organization: Fowlkes Engineering, Bozeman, MT (USA).
View MARC record | catkey: 47354610