Stoves and furnaces – Ovens – Domestic
Patent
1974-11-20
1977-08-02
Sprague, Kenneth W.
Stoves and furnaces
Ovens
Domestic
126271, F24J 302
Patent
active
040389693
ABSTRACT:
A solar collector is disclosed which collects radiant energy for transfer as thermal energy to a fluid with high efficiency. An energy absorbing structure is mounted between a transparent front panel and opaque back panel of a housing. The energy absorbing structure comprises a plurality of open-ended cells having parallel axes which are oriented at right angles to the transparent panel for receiving the radiant energy. Pairs of adjacent cells share common sidewalls to achieve a high surface area to frontal area ratio. The surfaces of the sidewalls have a high absorbtivity coefficient for efficiently absorbing the radiant energy, and the sidewalls have a high thermal conductivity for efficiently transfering thermal energy to a fluid which is directed through the cells. In one embodiment the cells are polygonal in cross-section to form a honeycomb structure, and in another embodiment the cells are substantially circular in cross-section. Means is provided to direct a fluid such as air or water into the housing and through the cells in heat exchange relationship with the sidewalls for absorbing and carrying away the energy collected by the cells.
REFERENCES:
patent: 201439 (1878-03-01), Moreau
patent: 2680437 (1954-06-01), Miller
patent: 3875925 (1975-04-01), Johnston
patent: 3920413 (1975-11-01), Lowery
patent: 3939818 (1976-02-01), Hamilton et al.
Sprague Kenneth W.
Yeung James C.
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