Solar collector

Details Solar collector Solar collector

1977-10-07

1979-05-08

Sprague, Kenneth W.

Stoves and furnaces

Heaters

Surface

F24J 302

Patent

active

041530420

ABSTRACT:
A solar collector comprised of a frame and a plurality of tubular collector elements. Each collector element is comprised of an outer transparent tube, a metallic absorber tube, and an intermediate transparent tube which encloses the absorber tube. The absorber tube is coated with an absorptive coating and the outer tube is coated over a significant portion of its circumference with a reflective coating to reflect solar radiation onto the absorber tube. The intermediate tube serves to reduce convective and conductive heat losses, provides a structural support for the absorber tube, and chemically isolates the coated absorber tube from the reflective coating on the outer tube.

REFERENCES:
patent: 980505 (1911-01-01), Emmet
patent: 2141330 (1938-12-01), Abbot
patent: 3227153 (1966-01-01), Godel et al.

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