Abstract
This paper presents the design and fabrication of a prototype model of a novel solar tracker that exploits the unique properties of shape memory alloy for its actuator. As against the conventional solar trackers, the proposed tracker does not use a motor for changing the position of the PV cell. The shape memory alloy is in the form of a spring and is used for actuating. SMA spring moves the solar panel to track the Sun during day time and back to its original position at the end of the day. The proposed structure of the tracker not only increases the efficiency but also proves to be compact, light weight and robust.
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