Sea shell solar collector
AssigneeThe United States of America as represented by the United States Energy Research and Development Administration
InventorAri Rabl
Life of this patent
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Abstract
A device is provided for the collection and concentration of solar radiant energy including a longitudinally extending structure having a wall for directing radiant energy. The wall is parabolic with its focus along a line parallel to an extreme ray of the sun at one solstice and with its axis along a line parallel to an extreme ray of the sun at the other solstice. An energy absorber is positioned to receive the solar energy thereby collected.
Claims5
A stationary nonimaging cylindrical solar radiation concentration device, having a seasonably variable concentration factor comprising:
- a reflective side wall for directing radiant energy with a transverse cross section in the form of a parabola whose axis is a first line parallel to an extreme ray of the sun at one of the solstices, said parabola extending from the apex of said parabola along said first line to a second line parallel to an extreme ray of the sun at the other solstice, and an energy absorber positioned to receive solar energy crossing an exit aperture whose transverse cross section is defined by a third line from the focus of said parabola to said apex of said parabola, said energy absorber and said side wall extending parallel to a reference axis perpendicular to the transverse cross section of said side wall to form a trough-shaped structure.
Dependencies are inferred from the claim text.