Semi-tubular parabolic multiple core helix solar concentrator

Details Semi-tubular parabolic multiple core helix solar concentrator Semi-tubular parabolic multiple core helix solar concentrator

1979-02-26

1980-11-25

Yeung, James C.

Stoves and furnaces

Tool having fluid fuel burner

Curling iron

126441, 136246, F24J 302, H01L 3100

Patent

active

042352258

ABSTRACT:
A device for improving the radiant solar energy collection efficiency of a helix shaped solar collector-concentrator by concentrating the sun's rays on a plurality of specifically positioned energy absorber collecting cores as the sun moves through its solar day without the use of active tracking devices, is provided. By using a helix shaped semi-tubular parabolic collector-concentrator with multiple specifically positioned collecting cores crossing and intersecting the shifting sharp focal axis of the reflective surfaces of the helix shape at a slight angle to the focal axis, rather than being exactly on the focal axis, at least one or more of the collecting core surfaces is in sharp focus at all times, thus optimizing the sun's radiant solar energy collection capacity of said device. Further increased primary direct and non-reflective incident solar energy is collected on a plurality of collecting cores providing additional collection efficiencies. The helix shaped semi-tubular parabolic reflector and the energy absorber cores are enclosed by a transparent, relatively air-tight covering which causes the device to be resistant to environmental factors such as snow, rain, wind, pollution and other atmospheric degradants. The additional confined heat energy generated and trapped within the covered helix shaped semi-tubular parabolic reflector further increases the device's collecting efficiency. In one embodiment the heat energy thus collected may be transferred to a heat absorbing medium to be utilized in a useful manner. In another embodiment the solar energy impinging on the energy absorber collecting cores may be converted by other means such as photoelectric conversion into electrical energy to be utilized and stored.

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patent: 4098264 (1978-07-01), Brokaw
patent: 4099516 (1978-07-01), Caulier
patent: 4138994 (1979-02-01), Shipley
patent: 4149525 (1979-04-01), Prado
patent: 4153039 (1979-05-01), Carroll

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