Stoves and furnaces – Heaters – Surface
Patent
1977-02-22
1979-06-19
Dority, Jr., Carroll B.
Stoves and furnaces
Heaters
Surface
126270, 136 89PC, F24J 302
Patent
active
041583566
ABSTRACT:
A solar collector tracking the sun through changes in the relative position between the sun and the earth. The collector may rotate about a single axis to follow the sun throughout the day. A second optional axis may compensate for the orientations of the sun in different seasons of the year. The energy received by the collector provides the motive power to effect its positional changes. A reflective concave surface with cylinderal symmetry and a cross-sectional parabolic configuration provides concentrate solar radiation at a transducer. Furnaces with an expandable fluid on either side of the focal line of the parabola connect to pistons to orient the collector. The parabola subtends an arc of about 41.degree. on either side of its center and, for an overall width of w, represents the locus of points equidistant between a straight line and a circle, tangent to the line, of radius r=kw/2. The constant k has a value dependent upon the intended latitude of the collector; varies between 0.611 and 0.825; and approximates 0.7425 for 44.degree. of latitude. The axis of rotation passes through the collector's center of area to minimize wind effects.
REFERENCES:
patent: 1661473 (1928-03-01), Goddard et al.
patent: 1704173 (1929-03-01), Chesney
patent: 3348374 (1967-10-01), Schalkowsky
patent: 3988166 (1976-10-01), Beam
patent: 4022185 (1977-05-01), VON Hartitzsch
patent: 4038972 (1977-08-01), Orrison
patent: 4063543 (1977-12-01), Hedger
patent: 4069812 (1978-01-01), O'Neill
patent: 4089323 (1978-05-01), Trihey
"Concentrating Collectors for Solar Heating and Cooling", Popular Science, Sep. 1, 1976 (p. 96).
Dority Jr. Carroll B.
Friedman Eugene F.
Jones Larry
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