Vacuum Tube Solar Energy Systems

• Vacuum tubes consist of two glass tubes that are nested and vacuumed in between.
• The outer tube is resistant to all weather conditions.
• The inner tube is made of a transparent and durable glass with a special composition and is coated with a black selective surface.
• Thanks to this surface, 93% of the sun's rays are absorbed and converted into thermal energy.
• Due to the vacuum, heat losses in the tubes due to conduction and convection are at a minimum level.
• Vacuum tube solar energy systems can produce hot water even at -40ºC temperatures without the need for antifreeze under suitable conditions.
• There is no need for an additional power source for the operation of the systems.
• The water, which is heated and has a lower density in the vacuum glass tube, moves upwards in the tube towards the hot water tank.