The substance in a photovoltaic system that easily transforms the absorbed radiation into heat and then transfers this heat to a medium like, solar fluid or water, is known as a Solar absorber.
How Does a Solar Absorber Work?
Solar absorbers do not transform solar energy into electricity as solar cells do. They do transform solar energy into heat. They are still energy-saving devices since this heat is utilized to lower the amount of electricity needed to produce the same amount of heat. Because they frequently fall into the same category as energy conservation, they are occasionally mistaken for solar cells. Using a liquid, most frequently water is the most popular way to move heat from the absorbers to where it is most needed.
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Where are Solar Absorbers Used?
Solar selective absorbers (SSAs) have been used extensively in concentrating solar power, solar water heating, and solar drying because they have high sunlight absorption (300–2500 nm) and low infrared thermal radiative losses (2.5–25 m). SSAs are without a doubt the best choice for the photothermal conversion process.