Ray trace evaluation of solar concentrators including limb darkening effects

Ray trace evaluation of solar concentrators including limb darkening effects

The different correlations used to calculate intensity distribution over the sun's disc are compared. A new correlation is suggested which predicts the values to within ± 1.5 per cent of the experimental values. The distribution of local concentration ratio over a flat absorber placed in the fo...

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Veröffentlicht in:Solar energy 1986, Vol.36 (3), p.293-296
Hauptverfasser: Negi, B.S., Bhowmik, N.C., Mathur, S.S., Kandpal, T.C.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Energy
Exact sciences and technology
Natural energy
Solar energy
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Zusammenfassung:The different correlations used to calculate intensity distribution over the sun's disc are compared. A new correlation is suggested which predicts the values to within ± 1.5 per cent of the experimental values. The distribution of local concentration ratio over a flat absorber placed in the focal plane of a cylindrical parabolic trough and that of a polygonal trough is determined using a ray-tracing technique.
ISSN:0038-092X
1471-1257
DOI:10.1016/0038-092X(86)90145-3