Stoves and furnaces – Heaters – Surface
Patent
1976-05-03
1977-09-20
Sprague, Kenneth W.
Stoves and furnaces
Heaters
Surface
165142, 350293, 350299, F24J 302
Patent
active
040489825
ABSTRACT:
The disclosure relates to a bulb-type solar energy collector device comprising a hollow glass body shaped with a parabolic interior surface that is coated with specular finish of a metal, e.g. silver, and includes an apex aperture and integral hollow yoke. A hollow glass, bulb-shaped absorber element is exteriorly coated with a wave length selective coating. The bulb-shaped element includes a tubular hollow stem dependent from the bulbar portion and fixed in the yoke of the glass body so that the central axis of the stem and bulbar end portion is along the focal axis of the parabolic reflecting surface. A cover plate is sealed over the enlarged end of the reflecting surface enclosing the interior mirror surface in a chamber which is evacuated to substantial vacuum, e.g. 10.sup.-4 torr or greater vacuum. A working media is circulated from a source in a manifold through the interior volume of the absorber element to remove the solar energy absorbed thereby as heat and the media is returned to the manifold. The solar energy laden media is available for heating, cooling or power generating uses.
REFERENCES:
patent: 761596 (1904-05-01), Moss
patent: 1424932 (1922-08-01), Moreau
patent: 1575309 (1926-03-01), Anderson
patent: 1696003 (1928-12-01), Harvey
patent: 3952724 (1976-04-01), Pei
Nelson J. R.
Owens--Illinois, Inc.
Sprague Kenneth W.
Yeung James C.
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