Solar radiation collector

Details Solar radiation collector Solar radiation collector

1984-04-27

1985-11-19

Jones, Larry

Stoves and furnaces

Tool having fluid fuel burner

Curling iron

126438, 126439, 350632, F24J 302

Patent

active

045535310

ABSTRACT:
A solar radiation collector comprises a receiver (2-5) through which passes a medium to be heated by solar radiation, and a concentrator (2-1, 2-4) for concentrating solar radiation onto the receiver (2-5). The receiver (2-5) is an elongate structure of polygonal or approximately polygonal section, and the concentrator may be a Fresnel lens system (2-1) and cycloidal mirrors (2-4). Between the concentrator (2-1, 2-4) and the receiver (2-5) is an intermediate device (2-6) surrounding the receiver (2-5) for reducing energy losses due to radiation emitted by the receiver (2-5). The intermediate device (2-6) has a reflective, internal surface (1-3, 1-5, 1-6) for reflecting back onto the receiver (2-5) radiation emitted therefrom, and at least one window (1-4, 1-7) in its perimeter through which radiation is focussed onto the receiver (2-5) by the concentrator (2-1, 2-4). The internal surface of the intermediate device (2-6), when viewed in section is constituted by curved arcs such as to concentrate onto the receiver (2-5) radiation emitted therefrom. Preferably the arcs of the intermediate device (2-6) are elliptical. Also preferably the external surface of the receiver (1-9), when viewed in section, has at least one of its faces (16-1) constituted by a curved surface. In some forms, the concentrator has instead of a Fresnel lens (2-1) a parabolic mirror (32-1) and a plane mirror (32-2) which is automatically moveable to focus the solar radiation from the parabolic mirror (32-1) onto the receiver (31-3).

REFERENCES:
patent: 4010732 (1977-03-01), Sawata et al.
patent: 4173968 (1979-11-01), Steward
patent: 4280482 (1981-07-01), Nilsson, Sr.
patent: 4291678 (1981-09-01), Strickland

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