Motorless solar tracking system

Sun tracking system is used for efficiency improvement. To solve problems that presents in existing solar-tracking system such as it cannot work without electricity, this report puts forward an automatic sun tracker driven by differential pressure Controlled system. Main work of this system is to collect the maximum solar energy and convert it into electricity. Due to gravity it turns the tracker, solar ray is used to heat canister to move liquid from one side to the other side in the container to reliably track the suns path from east to west. There is no motor, no gears and no controls to fail. The present system provides apparatus for tracking the sun which reorients itself immediately in the absence of sunlight. Large and small canisters are provided at the respective ends of a pivot-able frame. When the sun is not normal to the plane containing the canister, the near canister is shaded from direct sunlight and the far canister is exposed. A conduit is provided between the canisters, and a quantity of volatile fluid is located in the canister and conduit. The liquid volume of the volatile fluid is greater than that of the small canister plus the conduit, but less than the volume of the large canister. A gas spring fluid is located in the large canister, which has a vapor pressure sufficient to force the volatile fluid into the small canister in the absence of sunlight on the east canister.