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Two glass integrated vacuum tube(solar tube)

Description:

Two glass integrated vacuum tube(solar tube) consists of two glass tubes which are fused together at one end. The inner tube is coated with a selective surface that absorbs solar energy well but inhibits radiative heat loss.

  • Addition Description

The basic information:

1 Pipe Material:Glass

2 Glass Thickness:2.0mm

3 Hailstone Resistance:28mm

4 Tube Coating:Cu-Ss-Al/N/Al

5 Absorption Efficiency:0.75

6 Stagnation Temp:392f

7 Maximum Service Temperature:203f

8 Transmission Through Glass:92%

9 Absorptivity Coefficient:94%

10 Life span:15years

 

Detailed description:

 Glass-Glass tubes consists of two glass tubes which are fused together at one end. The inner tube is coated with a selective surface that absorbs solar energy well but inhibits radiative heat loss. The

air is withdrawn ("evacuated") from the space between the two glass tubes to form a vacuum, which eliminates conductive and convective heat loss. These tubes perform very well in overcast conditions as

well as lowtemperatures. Because the tube is 100% glass, the problem with loss of vacuum due to a broken seal is greatly minimized. Glass-glass solar tubes may be used in a number of different ways, including

direct flow or heat pipeconfiguration. LONGQUAN SOLAR uses a high efficiency heat pipe and heat transfer fin design to conduct the heat from within the evacuated tube up to the header.

 

Type

Length 1200mm

Length 1500mm

Length 1500mm

Length 1800mm

Glass Thermal Energy Parameter

3.3*10 -6

3.3*10 -6

3.3*10 -6

3.3*10 -6

Outer Glass Tube Diameter

47mm

47mm

47mm

47mm

Inner Glass Tube Diameter

37mm

37mm

37mm

37mm

Thickness of the Glass Tube

1.6mm

1.6mm

1.6mm

1.6mm

Length of the Vacuum Tube

>0.80

>0.80

>0.80

>0.80

Solar Selective Absorber Coating

1200mm

1500mm

1500mm

1800mm

Absorptance(AM1.5)

Al-N/AL

Al-N/AL

Al-N/AL

Al-N/AL

Emission Ration(80)

>0.93

>0.93

>0.93

>0.93

Atmospheric Pressure Intensity in Vacuum Jacket

       

Stagation Temperature

P

P

P

P

Heat Loss Coefficient

>230Deg.c

>230Deg.c

>230Deg.c

>230Deg.c

Hail Resistant Ability

       

Max. Pressure Resistant Ability

       

  • Brand:
    Longquan Solar & OEM
  • Color:
    Produced according to customer requirements
  • Place of Origin:
    China
  • Price Terms:
    FOB, CIF
  • Payment Terms:
    T/T, L/C
  • Supply Ability:
    18,000 pcs/day
  • Delivery Time:
    7 days/according to the order
  • Minimum Order:
    100 pcs
  • Send Inquiry

Two glass integrated vacuum tube(solar tube) consists of two glass tubes which are fused together at one end. The inner tube is coated with a selective surface that absorbs solar energy well but inhibits radiative heat loss.

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