Environmental Engineering Reference
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Figure 7.3 Dual-axis tracked refl ectors for point concentrators.
7.2 Solar Power Plants
7.2.1 Parabolic Trough Power Plants
As the name indicates, in parabolic trough power plants large trough-shaped para-
bolic mirrors concentrate sunlight onto a focal point. The collectors are erected next
to each other in a row several hundred metres long (Figure 7.4). Many parallel rows
in turn form an entire solar collector fi eld.
Figure 7.4 View of the Kramer Junction parabolic trough power plant in California (USA).
Photo: Gregory Kolb, SANDIA.
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