| 摘要 |
The present invention provides a solar collector apparatus, comprising a horizontally-mounted cylindrical reflector, divided along its length into two reflector segments, each having its own axis of rotation. Preferably, the two reflector segments are produced by dividing the horizontally- mounted cylindrical reflector down its centerline into two equal reflector segments. The two reflectors segments perform novel tracking with different rotation angles about their corresponding axes by use of a trapeze coupling or a mechanism that permits separate tracking. Since the two reflector segments are coupled, preferably only one tracking mechanism (trapezoid or other) is required since the reflector segments preferably have parallel axes. The present invention also provides a stationary preferably flat plate receiver facing downwards, absorbing the solar energy reflected upwards. The receiver preferably comprises a metal absorbing plate, fluid-carrying tubes, thermal insulation and preferably a black material front for maximizing the absorption. A control is provided to direct radiation away from the receiver in the event of danger of overheating of the receiver or during periods of maintenance. |
