solar engine. Drawing, description

MODELING
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solar engine. Tips for a modeller

Modeling

The intricate design shown in the figure is nothing more than a solar engine, a motor that converts the thermal energy of the sun's rays directly into mechanical work.

It is simply arranged. The surfaces of the octagonal drum are bimetallic plates. A fairly heavy counterweight is connected to the middle of each by a metal rod. Opposite one of the faces is a converging lens.

solar engine

The engine works as follows. The sun's rays focused by the lens heat the bimetal plate, causing it to bend; at the same time, the counterweight associated with it moves.

The balance of the system is thus disturbed, and the drum rotates 1/8 of a circle, exposing its other side to the sun's rays. Then the process is repeated.

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