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Dual target solar colllector tube

China

47*12/15/16/18 58*15/16/18

1.75 / 获取最新报价

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1.75

1000

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5

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-

现在联系

产品规格

Brand Name : - Type : - Application : - Pipe Material : -

详情


 

This kind of tube is made of two layers of borosilicate glass which is specially hard. Borosilicate glass 3.3 is an ideal material for solar evacuated glass tube because it has high transparency and can withstand high temperature as well as high pressure.

The absorber layer is coated with stainless steel, aluminum and copper in an environment of entire nitrogen. The selective coating is more stable when stainless steel is added, and the absorptance is higher. Since copper is more effective than aluminum in reducing radioactive heat loss, so heat loss is greatly cut down when copper is coated as the infrared-reflection layer.

The vacuum jacket which is of high vacuum degree is a kind of superior insulation. It reduces heat loss and protects the water in the tube from freezing.

Solar evacuated glass tube can produce hot water even in tough weather. That’s why it is suitable to be used in areas and regions where is very cold or always cloudy.

 

Technical Specification

1.Structure: Two concentric borosilicate glass

2.Material: Borosilicate glass 3.3

3.Glass thickness: 1.6mm

4.Thermal expansion: 3.3 × 10-6°C

5.Outer/Inner tube diameter: 47mm/37mm

                      58mm/47mm

6.Outer tube diameter×Length: 47mm×1500m/1600mm/1800mm

                        58mm×1500mm/1600mm/1800mm/2000mm/2100mm

7.Selective coating: SS-AlN/Cu

8.Absorptance: 0.90-0.95(AM1.5)

9.Emittance: 0.04~0.06(80°C+-5°C)

10.Vacuum degree: P≤5.0×10-3 (Pa)

11.Stagnation temperature: 260~300°C

12.Heat loss: ULT= 0.4~0.6w/(m2.°C)

13.Resistance: Hail diameter≤ 25mm

14.Solar irradiation for obtaining a preset water temperature rise in an all-glass evacuated solar collector tube under stagnation: H=3.7~4.2 MJ/m2(58mm); H=2.9~3.2MJ/m2(47mm)

 

 

Specification

Structure

Two concentric borosilicate glass

Material

Borosilicate glass 3.3

Thermal expansion

(3.3+-0.1)×10-6

Outer tube diameter

Φ47±0.7mm  &=1.6mm

Φ58±0.7mm  &=1.6mm

Inner tube diameter

Φ37±0.7mm  &=1.6mm

Φ47±0.7mm  &=1.6mm

Length

47-1500mm/1600mm/1800mm

58-1500mm/1600mm/1800mm/2000mm/2100mm

Coating

SS-AlNx/Cu

Solar absorption efficiency

     0.90-0.95(AM1.5)

Launch ratio

     0.04~0.06(80°C±5°C)

Vacuum degree

P≤3.0×10-3 (Pa)

Max stagnation temperature

260~300°C

Average heat loss coefficient

ULT= 0.4~0.6w/(m2.°C)

Resistance performance

Hail diameter≤ 25mm

Solar irradiation for obtaining a preset water temperature rise in an all-glass evacuated solar collector tube under stagnation

H=3.7~4.2 MJ/m2(58mm)

H=2.9~3.2MJ/m2(47mm)

联系我们

联系人:Mr. Li

公司名称:Guangpu Solar Energy Project Co., Ltd Of Shandong

办公地址:Shanguo Road, Zaozhuang, Other, China,lxhzd19890720@yahoo.

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至,

Mr. Li < Guangpu Solar Energy Project Co., Ltd Of Shandong >
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