Geometrical instruments – Miscellaneous – Light direction
Patent
1979-12-26
1980-12-02
Martin, Jr., William D.
Geometrical instruments
Miscellaneous
Light direction
33 1SC, 33268, 33273, 33274, G01C 100
Patent
active
042363136
ABSTRACT:
A technique is disclosed herein for evaluating solar exposure at various points in any one of a number of given geographic locations for any given period during the year in order to determine the most efficient location for a solar collector. This technique may be carried out utilizing a single apparatus which is also disclosed herein and which includes a solar pointing device and the necessary indicia to appropriately orient the pointing device with respect to its environment at the various points selected. Once the pointing device is oriented, it is moved in a solar pointing position in an way which determines the path of the sun between sunrise and sunset for each point. From these paths, the amount of actual solar exposure at each of the points selected can be determined taking into account any resulting obstructions such as trees, rooflines or the like.
REFERENCES:
patent: 1615507 (1927-01-01), Fisher
patent: 2478315 (1949-08-01), Pollman
patent: 2677183 (1954-05-01), Brenner
patent: 3090124 (1963-05-01), Fruhling
patent: 4138826 (1979-02-01), Inge
patent: 4177566 (1979-12-01), Haines
Mother Earth News No. 152, Jul./Aug. 1978 "The Amazing $30 Solar Site Selector".
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