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Photovoltaic or, more generally, solar cell devices require tracking of the motion of the sun for optical efficiency. A scheme is provided for tracking the sun in a simple way.
English (United States)
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Tracking Mechanism for Solar Cells
Photovoltaic or, more generally, solar cell devices require tracking of the
motion of the sun for optical efficiency. A scheme is provided for tracking the sun
in a simple way.
In principle, a cloud system liquid-vapor reservoir is used, as shown in Fig. 1.
If the temperature of the liquid in reservoir 2 is higher then the liquid in reservoir
3, vapor will condense in reservoir 3 from reservoir 2. The temperature
difference will cause the fluid to flow, and therefore reservoir 3 will have more
liquid leading to an unbalanced weight distribution which causes reservoir 3 to be
In the present solar cell device (Fig. 2), the same principle of asymmetrical
head absorption is used. The device comprises a solar cell 1 which is saturated
on a reservoir 2 having liquid in opposed cells 3 and 4. The reservoir 2 is
balanced at fulcrum 5. Attached to the reservoir 2 is an absorber and reflector.
As the sun heats the side 4 of the reservoir absorber more than the opposed
side which is reflective, liquid from cell 4 goes to cell 3. This tilts the solar cell
about fulcrum 5 until solar cell 1 points towards the sun and both cells 3 and 4
are heated equally. As the cell is balanced and damped, this device will track the
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