The structure of solar panel is depicted in the diagrams as well as demonstrating the procedure to use the solar panel.
Overall, transparent top and a box are two main features of the solar panel. The solar panel can be used for air heating and water heating processes.
There are similarities between air heating and water heating processes. First of all, both processes required a box with transparent top for importing the energy from the sunlight. The energy from sunlight increases the heat inside the box. Moreover, there is an inlet and an outlet in both heating processes for the low temperature water and the cool air to go into the solar panel and exit the solar panel in higher temperature products.
The air heating process only needed the equipment mentioned above. However, for water heating process, water pipe is another main feature for importing and exporting the water within the solar panel.
