Passive solar tracking system for steerable Fresnel elements

Details Passive solar tracking system for steerable Fresnel elements Passive solar tracking system for steerable Fresnel elements

1975-10-24

1976-10-12

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

126270, G01J 120

Patent

active

039860213

ABSTRACT:
An angular tracking servo system for passive tracking of the sun which utzes solar radiation to control the attitude of a mirror element in an array of Fresnel reflectors. The array collects and focuses solar energy onto a high efficiency conversion device. The energy required to move the mirror element is supplied by a gear system which is attached through a pivot arm to a vertically moving float immersed in a chamber containing water.

REFERENCES:
patent: 3515594 (1970-06-01), Samuels
patent: 3613659 (1971-10-01), Phillips
patent: 3917942 (1975-11-01), McCay

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