Combined flat plate-focal point solar heat collector
A solar heat collector system comprising, in generally laminar construction, an exteriorly exposed transparent member, a focal point reflector plate spaced apart from and behind said transparent member to provide a space therebetween, said reflector plate comprising a material having a plurality of concave parabolic surfaces each of said surfaces being of a sunray reflective material, and a conduit for heat exchange fluid in said space of elliptical cross section positioned in said space forwardly of said concave parabolic surfaces to intercept solar rays reflected from each of said parabolic surfaces of said reflector plate, said conduit being comprised of a heat absorbing material, the elliptical cross section of said conduit having a major axis and a minor axis with said major axis being parallel to the chord formed by the extremities of the arc of each parabolic surface whereby the amount of direct sunlight impingement on said conduit is maximized, said major axis being of sufficient width such that said conduit will directly intercept all reflected rays from said parabolic surfaces of said focal point reflector plate.
- Assignee:
- Sun Power, Inc.
- Patent Number(s):
- US 3951128
- OSTI ID:
- 7191992
- Country of Publication:
- United States
- Language:
- English
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