The diagram illustrates the basic design and function of a simple solar panel, as well as two applications of the device, heating air and heating water using solar energy.
Overall, the solar panel consists of a rectangular box with an inlet and an outlet. A transparent glass panel is placed on top to allow sunlight to enter the box. Inside, solar energy is used to heat the substance (air or water) that flows through it.
In the first application, air enters the box through the inlet and is exposed to sunlight passing through the transparent glass. The heat from the sun warms the air inside the box, and the warmer air exits through the outlet. This simple mechanism provides a basic way to increase the temperature of air using solar power.
In the second application, the same structure is used but with the addition of a coiled pipe inside the box. Water enters through the inlet, flows through the pipe, and is heated by the sun’s rays as they penetrate the glass. The heated water then flows out through the outlet.
In conclusion, the diagrams demonstrate how solar panels can be used in a cost-effective and environmentally friendly way to heat air or water by utilizing the energy from the sun.