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:
- Wisconsin Univ., Madison (USA)
- OSTI ID:
- 5817789
- Report Number(s):
- COO-2971-6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
141000* -- Solar Collectors & Concentrators
COMPOUND PARABOLIC CONCENTRATORS
CONCENTRATING COLLECTORS
CONVECTION
CORRELATIONS
COVERINGS
ENERGY TRANSFER
FLAT PLATE COLLECTORS
GRASHOF NUMBER
HEAT TRANSFER
HONEYCOMB STRUCTURES
MECHANICAL STRUCTURES
NATURAL CONVECTION
NUSSELT NUMBER
SLAT TYPE COLLECTORS
SOLAR ABSORBERS
SOLAR COLLECTORS
SOLAR CONCENTRATORS
V TROUGH COLLECTORS
141000* -- Solar Collectors & Concentrators
COMPOUND PARABOLIC CONCENTRATORS
CONCENTRATING COLLECTORS
CONVECTION
CORRELATIONS
COVERINGS
ENERGY TRANSFER
FLAT PLATE COLLECTORS
GRASHOF NUMBER
HEAT TRANSFER
HONEYCOMB STRUCTURES
MECHANICAL STRUCTURES
NATURAL CONVECTION
NUSSELT NUMBER
SLAT TYPE COLLECTORS
SOLAR ABSORBERS
SOLAR COLLECTORS
SOLAR CONCENTRATORS
V TROUGH COLLECTORS