Solar evacuated tubes are a type of solar thermal collector that is used to harness the energy of the sun to generate heat. They are made up of a series of tubes that are sealed at one end and mounted on a frame or rack. The tubes are typically made of borosilicate glass and are coated with a special material that absorbs sunlight and converts it into heat.
Inside each tube, there is a vacuum, which helps to insulate the heat that is generated by the sun's rays. This means that the heat is trapped inside the tube and can be used to heat water or air for various applications.
Solar evacuated tubes are commonly used in residential and commercial solar hot water systems, as well as in solar air heating systems. They are highly efficient at converting sunlight into heat, and can operate effectively even in cold or cloudy conditions.
One of the main advantages of solar evacuated tubes is their durability. Because they are made of glass and have a vacuum seal, they are resistant to corrosion and can last for many years with minimal maintenance.
Overall, solar evacuated tubes are a reliable and efficient way to harness the power of the sun and use it to generate heat for a variety of applications.