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The image presents three diagrams showcasing a solar panel's structure and function: the top diagram identifies a basic solar panel comprising a transparent glass layer positioned over an enclosed box featuring an inlet on one side and an outlet on the other. Below, two separate diagrams illustrate operational uses—the first one involves using air indicated by the inlet directing air into the box, whereupon exposure to sun rays results in the output of warm air via the outlet, suggesting air heating application; the second diagram depicts the use with water, demonstrated by water entering through the inlet, subsequently being heated by sun rays within coiled tubes, and exiting as warm water from the outlet, indicating water heating application. Both bottom diagrams highlight processes driven by received sun radiation as depicted by a sun icon.
Given the complexity of the image, the above description may not be entirely accurate.
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The diagram illustrates the structure and working process of solar panels used to heat air and water for household purposes.
Overall, solar panels use energy from sunlight to warm up either air or water as it passes through the system. The basic structure remains the same in both cases, but the substance inside the panel and the type of outlet differ.
In both systems, cool air or water first enters the panel through an inlet pipe. The panel is covered with a transparent glass layer that allows sunlight to penetrate and trap heat inside the box. In the air-heating system, air flows through the panel, becomes heated by the sun’s energy, and exits as warm air through an outlet.
Similarly, in the water-heating system, water passes through pipes inside the panel, absorbing heat from sunlight before leaving as warm water. While both systems operate on the same principle, the air panel circulates air directly, whereas the water panel uses pipes to transfer heat efficiently.
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