Double-evacuated solar heat pipe(All-glass)

Specifications

Glass material: borosilicate 3.3
Coating structure:SS-ALNx/Cu 3 layers
Model: 47-1500mm, 58-1800mmGlass
Thickness: 1.8mm 1.6m

Product name : Dual-evacuated All-glass Solar Heat Pipe/Double-evacuated Solar Tube

Characteristic featur : We apply the technology of Three-target Magnetron Sputtering ,and this is our patent product which is researched  and developed all by our only engineers .There is no water running inside the inner tube when it works ,it use the Principle of the Transformations betweem  liquid and gass to conduc heat . It is the same like the Copper Heat Pipe,but it is much cheaper than  the copper one ,and it has the advantages of Preventing water scale and  the resistanting  frost  ,the age of the coating can be up to 10 years more ,and it is much stable than the copper heat pipe .

Glass material: borosilicate 3.3

Coating structure:SS-ALNx/Cu

Model: Φ47-1500mm, Φ58-1800mm

Outer tube diametre:Φ47±0.7mm;  thickness: δ=1.6mm

                   Φ58±0.7mm;  thickness: δ=1.6mm

Inner tube diametre: Φ37±0.7mm;  thickness: δ=1.8mm

                   Φ47±0.7mm;  thickness: δ=1.8mm

Color : Blue  , Gold purple

Vacuum degree : P≤4.5×10-3(Pa)

Solar absorption efficiency : α=0.90-0.92(AM1.5)

Absorptivity emissivity ratio : εh =0.04-0.06(80°C±5°C)

The temperature of basking without water : Y=260~310 m² °C / KW

Average heat loss coefficient: : ULT=0.4~0.5W / ( m²°C)