Evacuated Tubes

Solar cylinder

Why Suntask solar tube collector?

Suntask use a high efficiency heat pipe and heat transfer in design to conduct the heat from within the evacuated tube up to the header. Suntask company is the world’s pioneer in solar tube innovations with strict conformity with the ISO9001 Quality System.

Suntask panel is a perfect combination of the vacuum tube and the heat pipe:

  1. Higher heat efficiency: advanced heat transferring style of the heat pipe, excellent selective absorber coating and perfect combination with high vacuum heat preservation
  2. Wide applicable range: as the heat pipe has less heat capacity, it can be started quickly even under cloudy fine day and collect heat effectively. It can work normally even -30 below degree. As no water in the vacuum tube, it can effectively prevent lowing of heat efficiency due to frost cracking or scaling
  3. Each individual tube can work independently, and the whole system can still work if individual tube is damaged. The service life of the heat pipe can be longer than 20 years
  4. The unique connection between the heat pipe and the vacuum tube can ensure both sealing and replacement of damaged glass vacuum tube.
  5. Keymark certified.
Solar cylinder
Solar cylinder

What’s the evacuated tube collector? Vacuum tubes are consists of two glass tubes which are fused together at one end. The inner tube is coated with a selective surface that absorbs solar energy well but inhibits radioactive heat loss. The air is withdrawn (“evacuated”) from the space between the two glass tubes to form a vacuum, which eliminates conductive and convective heat loss. These tubes perform very well in overcast conditions as well as low temperatures. Because the tube is 100% glass, the problem with loss of vacuum due to a broken seal is greatly minimized. Glass-glass solar tubes may be used in a number of different ways, including direct flow, heat pipe, or U pipe configuration.