Research Article

Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector

Figure 3

Light distribution in the elliptical cavity when (a) under ideal condition; (b) Lel = 12 mm and α = 0.05°; (c) Lel = 12 mm and α = 0.1°; (d) Lel = 12 mm and α = 0.15°; (e) Lel = 12 mm and α = 0.2°; and (f) Lel = 19 mm and α = 0.2°.
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