Zhixi industry Park, Changzhou, Jiangsu
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Evacuated Solar Collector Tubes
Model:LQ-VT-01
Dimension | 47-1500 | 58-1800 |
Material of Tube | 3.3 High Boron Silicon | 3.3 High Boron Silicon |
Glass Expansion Ratio | （3．3±0.1）×10-6K-1 | （3．3±0.1）×10-6K-1 |
Outer Diameter of Tube | 47±0.1 | 58±0.1 |
Inner Diameter of Tube | 37±0.1 | 47±0.1 |
Thickness of Glass | 1.6±0.1 | 1.6±0.1 |
Transmittance | ≥0.89 | ≥0.89 |
Length of Tube | 1500±0.5 | 1800±0.5 |
Selective Coating | AL-N/AL or SS-CU- AL-N/AL | AL-N/AL or SS-CU- AL-N/AL |
Absorptivity | ≥0.86(AM1.5) | ≥0.86(AM1.5) |
Emissivity | ≤0.080(80℃±5℃) | ≤0.080(80℃±5℃) |
Vacuum Degree | ≤5.0×10-3Pa | ≤5.0×10-3Pa |
Collecting Performance Parameter under Sunshine | ≥190m2℃/kw | ≥190m2℃/kw |
Hailstone Resistance | 25mm | 25mm |
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