The diagrams illustrate the structure and functioning of two types of solar panel systems: one for heating air and the other for heating water.
Overall, both systems utilize solar energy to heat their respective mediums, but they differ in complexity. The air heating system is relatively simpler, consisting of a box with two openings, while the water heating system includes a more intricate setup, incorporating a water pipe.
In the air heating system, cool air enters the box through an inlet and is heated by the sun’s energy, which is captured by the transparent top. Once the air has absorbed sufficient heat, it flows out through the outlet, ready for use. This system is designed to raise the temperature of the air in indoor spaces or other environments that require heated air.
In contrast, the water heating system works similarly, but it includes an additional component—a water pipe that runs through the box. Cool water enters through the inlet, flows through the pipe, and absorbs solar energy as it moves through the system. The heated water then exits the outlet, ready to be used for various purposes such as domestic heating or industrial applications.