| 摘要 |
<p>System comprises in a single unit of focussing parabolic cylinder reflector collector and a flat collector, and can be rotated, pref. through 180 degrees; about an axis parallel to the absorber pipe of the parabolic cylinder reflector collector. Pref. rotation is performed automatically by control means which respond to fluctuation in solar radiation. The absorber pipe of the focussing collector and the absorber of the flat collector may be included in a heat circuit. The system is pref. supported by a parabolic housing of polyurethane foam. The system has high efficiency, with low costs for appts.</p> |
