Calculation of the optical power profile for a solar bowl with an iris
This report develops analytical techniques for studying shallow spherical segment bowls that have an attached tracking iris. The report extends previous analytical models that were developed as part of the Crosbyton Solar Power Project for the case of spherical segment bowls. Three types of calculations are considered. First, effective apperture formulas are derived for a spherical segment bowl with an iris, and results are compared with the bowl without an iris. Secondly, analytical formulas are derived to determine spillage losses for shallow bowls. Finally, the powerful Ratio of Solid Angles (ROSA) computer code is extended to include solar profiles for a spherical segment bowl with iris. The report includes several plots comparing optical power concentration ratios for solar bowls with and without an iris. A complete listing of the extended code, ROSAIRIS, is given in the appendix. 29 figs.
- Research Organization:
- Texas Tech Univ., Lubbock, TX (USA). Dept. of Mathematics
- DOE Contract Number:
- AC04-83AL21557
- OSTI ID:
- 5999804
- Report Number(s):
- DOE/AL/21557-T13; ON: DE89015784
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
SOLAR COLLECTORS
MATHEMATICAL MODELS
OPTICAL DISPERSION
R CODES
SOLAR TRACKING SYSTEMS
SPHERICAL CONFIGURATION
COMPUTER CODES
CONFIGURATION
EQUIPMENT
HELIOSTATS
SOLAR CELL ARRAYS
SOLAR EQUIPMENT
SOLAR TRACKING
141000* - Solar Collectors & Concentrators
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)