all-glass vacuum tube
Product Details
2.35kg
1.35kg
Net weight
>200
>200
Stagnation Temperature
P<5x10-2Pa
P<5x10-2Pa
Vacuum
<8%
<8%
Emission coefficient
>92%
>92%
Absorption coefficient
AL/N/AL
AL/N/AL
Absorptive Coating
Borosilicate Glass 3.3
Borosilicate Glass 3.3
Material
3.3x10-6
3.3x10-6
Thermal expansion
1.6mm
1.6mm
Glass thickness
47mm
37mm
Inner tube diameter
58mm
47mm
Outer tube diameter
1800
1500mm
Length
TG58
TG47
Model tape
Technical data table
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 or heat pipe configuration.
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 radiative 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The air is withdrawn ("evacuated") from the space between the two glass tubes to form a vacuum, which eliminates conductive and convective heat loss.
All-glass vacuum tube :
- Country:China (Mainland)
- telephone:86-573-87859001
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our solar vacuum tubes with: 1.fast thermal collecting efficiency 2.high heat resistance 3.high cold resistance |
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