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Just like an automobile engine, the computer CPU, vacuum tube is the solar water heater. Its performance lies on the coating technology, The three-target evacuated tube rise the heat more than 12%
1) High temperature: by special interference-layer it could bear the high temperature reach to 500℃, and the coating will not shed and aging.
2) Super anti-cold: Super-copper launches mirror, low reflectance, little heat loss ,good absorber results in cold environment, also can generate hot water.
3) Efficient absorption: High absorption is 92%, reflection reduces 65% heat increases 12% Higher temperature, more hot water.
More info please see below technical info articles:
Triple Vacuum tube Technical Specifications
|
Model |
ATE47 |
ATE58 |
|
Length |
1500mm |
1800mm |
|
Outer tube diameter |
47mm |
58mm |
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Inner tube diameter |
37mm |
47mm |
|
Weight |
1.3kg |
2.2kg |
|
Glass thickness |
1.7mm |
1.7mm |
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Material |
Borosilicate Glass 3.3 |
Borosilicate Glass 3.3 |
|
Absorptive coating |
Graded A1/N/A1 |
Graded A1/N/A1 |
|
Vacuum degree |
P<5*10 -3 Pa |
P<5*10 -3 Pa |
|
Thermal expansion |
3.3*10 -6 /°C |
3.3*10 -6 /°C |
|
Insolation Temperature |
>200°C |
>200°C |
|
Absorptance |
>94% |
>94% |
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Emittance |
<8% |
<8% |
|
Heat loss |
<0.8W/( m² °C) |
<0.8W/( m² °C) |
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Maximum strength |
0.8Mpa |
0.8Mpa |
|
Resist cold |
-50 °C |
-50 °C |
|
Resist hailstone |
Ø 25mm |
Ø 25mm |
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Resist wind |
30m/s |
30m/s |
|
Start-up temperature |
<=25°C |
<=25°C |
|
Effective collector area |
0.0966 m² |
0.1350 m² |
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