Solar Vacuum Tube

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Three Layer Solar Vacuum Tube

Three layer solar collector tubehigh thermal efficiency, more durable for low temperature and high temperature. Itsmembrane layer at bottom is typically made of copper. Absorption layer and antireflec

    1. Detailed information

    Three layer solar collector tube

    high thermal efficiency, more durable for low temperature and high temperature. Itsmembrane 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,  

     

    Internal Pipe

    Diameter & Thickness

    dia.=37±0.7mm  &=1.6mm,    dia.=47±0.7mm  &=1.6mm, dia.=58±0.7mm  &=2.0mm,

    Pipe Length

    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

     

    Solar hot water system

    Copyright © 2015 Haining Mayca Solar Energy Technology Co.,Ltd.
    Professionally manufactures solar water heater,solar collector. All rights reserved.

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