Uses The Arcobaleno VP vacuum solar collector was specifically developed to maximise the use of thermal solar energy. The Arcobaleno VP solar collector is available in two versions: VP 12, and VP 18. These have respectively 12 and 18 tubes. Thanks to the limited pressure loss, the modules can be connected in series making installing them extremely versatile. Their open surface of 2 or 3 m² allows you to make a customized system based on the your specific thermal demands for hot water production, heating system integration, or any other special applications.
1 Hermetically sealed, two-wall, borosilicate glass vacuum tube with ample vacuum range (absolute pressure less than 10-2 Pa) with total suppression of convective motion to minimize dispersions and maximize heat exchange by radiation of the selective inner surface. External Ø = 47 mm. Internal Ø = 37 mm.
2 Selective inner surface, with a selective high-absorption aluminium nitrite coating.
3 CPC (Compound Parabolic Concentrator) to further concentrate direct sunlight, exploiting even the surface of the tube that does not directly face the sun increasing the system's efficiency. Furthermore, the special coating is designed to provide excellent protection against atmospheric agents.
4 Thin plate aluminium conduction plate, with patented tube fixing system for the distribution tubes to ensure high contact.
5 Heat carrying medium distribution tubes, made from stainless steel U-tubing (external diameter 8 mm, thickness 0.5 mm)
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