Interferometric study of the natural convection characteristics of flat plate, slat and vee-corrugated solar collectors. Final report
The natural convection heat transfer relations for the heat transfer between absorber and cover plates of solar collectors have been studied. Interferometric techniques were employed to evaluate the local coefficients. Average values were obtained by integration of the local values. The results are presented in terms of correlations between Nusselt number and Grashof number. The investigations were carried out over tilt angles of 45 to 90 degrees. The Grashof number range tested was representative of that existing in flat plate collectors. The various geometrics included large flat enclosures, small aspect ratio enclosures representative of honeycomb or slat collectors, vee-corrugated (vee-grooved) collectors, and compound parabolic concentrators.
- Research Organization:
- Univ. of Wisconsin, Madison, WI (United States)
- DOE Contract Number:
- EY-76-S-02-2971
- OSTI ID:
- 5817789
- Report Number(s):
- COO-2971-6
- Country of Publication:
- United States
- Language:
- English
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COMPOUND PARABOLIC CONCENTRATORS
HEAT TRANSFER
FLAT PLATE COLLECTORS
SLAT TYPE COLLECTORS
V TROUGH COLLECTORS
CORRELATIONS
COVERINGS
GRASHOF NUMBER
HONEYCOMB STRUCTURES
NATURAL CONVECTION
NUSSELT NUMBER
SOLAR ABSORBERS
CONCENTRATING COLLECTORS
CONVECTION
ENERGY TRANSFER
MECHANICAL STRUCTURES
SOLAR COLLECTORS
SOLAR CONCENTRATORS
141000* - Solar Collectors & Concentrators