Solar energy conversion device

Details Solar energy conversion device Solar energy conversion device

1975-08-21

1976-10-05

Sprague, Kenneth W.

Stoves and furnaces

Heaters

Surface

138 38, F24J 302

Patent

active

039838617

ABSTRACT:
The present solar energy conversion device has spaced, concentric outer and inner tubes of high conductivity metal, the outer tube having a blackened outside surface and a reflective inside surface. A core rod of low heat conductivity extends concentrically inside the inner tube, and water flows around this core rod in a shallow cylindrical stream inside the inner tube to absorb heat efficiently from the inner tube. The inner tube may have fins on the outside to enhance the heat transfer.

REFERENCES:
patent: 1940070 (1933-12-01), Barry et al.
patent: 2872915 (1959-02-01), Bowen
patent: 3125091 (1964-03-01), Sleeper, Jr.
patent: 3321012 (1967-05-01), Hervey

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