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| Solar Vacuum tube |
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| Futures |
China Sunpark Solar Vacuum tubes assimilate the advanced 12 layers of spattering deposition Of trivalent element technology, high borosilicate glass, gradual change of ALN/AIN-SS/CU selective complex absorptive coating. And these make vacuum tubes have high performance of absorptance and low reflection ratio.Through the interlayer, vacuum has a unique effect of thermo, with its temperature up to 380℃ of idle sunning, performing a strong heating
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| 12 layers for selective coating,life time≥15 years |
Trivalent element technology,with ALN/AIN-SS/CU selective absorbptive coating, efficiency≥95%
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| Antifrozen:-25℃(Vacuum ≤5x10-3) |
Hail resistance: 25-35mm(high borosilicate glass tube)
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| Technical infomations: |
| Item |
Tri-element coated |
Single-element coated |
Tube meterial
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high borosilicate glass
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Selective coating
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ALN/AIN-SS/CU |
AL/N/AL |
Vacuum
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≤5x10-3
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≤5x10-3
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Absorptance
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≥95% |
≥93%
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Emittance(80±5℃)
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≤5%
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≤6%
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Stagnation
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≥250m2.℃ /Kw
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≥230m2.℃ /Kw
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Average heat loss
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ULT≤ 0.68W/m2.℃
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ULT≤ 0.73W/m2.℃
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| Photo |
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| Specifications |
Outer/inner diameter
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Length
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Package
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| 58/47mm |
1800mm |
cartons |
| 47/37mm |
1500mm |
cartons |
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| Performace |
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Solar heating collector
