Three layer solar collector tube: high thermal efficiency, more durable for low temperature and high temperature. Its membrane layer at bottom is typically made of copper. Absorption layer and antiref
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Three layer solar collector tube: high thermal efficiency, more durable for low temperature and high temperature. Its membrane layer at bottom is typically made of copper. Absorption layer and antireflective layer is compound of Nitrogen and aluminum, adding some component of stainless steel. Comparing to the general tubes, it maintains more efficient in heat preservation. Meanwhile, the chemical compound in the absorption layer is more pure than normal solar vacuum tube, thus possessing the more efficient absorption rate.
Specification：
| Structure | All-Glass Double Tube Co-Axial Structure | |
| Glass Material | High Borosilicate 3.3 Glass | |
| External Pipe Diameter & Thickness |
dia.=47±0..5mm &=1.6mm, dia.=58±0.5mm &=1.6mm,
dia.=70±0.5mm &=2.0mm, |
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Internal Pipe
Diameter & Thickness |
dia.=37±0.7mm &=1.6mm, dia.=47±0.7mm &=1.6mm, dia.=58±0.7mm &=2.0mm,
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Pipe Length
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800,1200,1500mm, 1600mm, 1800mm, 1900mm, 2000mm，2100mm | |
| Absorptive Coating Property | Structure | Cu/SS-ALN(H)/SS-ALN(L)/ALN |
| Sediment Method | Three Layer Magnetron Sputtering Plating | |
| Specific Absorption | as=0.93~0.96(AM1.5) | |
| Emission Ratio | 0.04~0.06(80°C±5°C) | |
| Vacuum | P≤5.0×10-3Pa | |
| Idle Sunning Property | Y= 260 ~ 300m²°C/KW | |
| Solar Irradiation for Obtaining a Preset Water Temperature | H≤4.7 MJ/ m²(dia.58) | H=3.7~4.2 MJ/ m² |
| H≤3.7 MJ/ m²(dia.47) | H=2.9~3.2 MJ/ m² | |
| Average Heat Loss Coefficient | Ult=0.4~0.6W/( m².°C) | |
| Pressure-Endure Ability | 0.6Mpa | |
| Hail-Endure Ability | 30mm | |
| Lifetime | 15years | |
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Copyright © 2015 Haining Mayca Solar Energy Technology Co.,Ltd.
Professionally manufactures solar water heater,solar collector. All rights reserved.
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