(Guangpu) solar energy

Solar energy Three target solar energy tube 1,high absorption 2,high efficiency 3,high insulation

solar energy

Advantages:

1)withstanding high pressure ability            

2)high absorption efficiency

3)low heat loss

4)stable and ageing-resistant coating     

5)anti-freezing

6)workability in tough weather

7)10 years warranty

8)ISO9001:2008 and CE certified

Introductions:

Three target solar energy tube is made of double high borosilicate glass tube3.3.

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 infrared conduction, 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.

Three target solar energy tube can produce hot water even in tough weather. Thats why it is suitable to be used in areas and regions where is very cold or always cloudy.

Specifications: 

Raw material	high borosilicate glass 3.3
Glass thickness	1.6mm
Outer tube length	1500mm,1600mm,1800mm,2000mm,2100mm
Outer tube diameter	47mm±0.7mm, 58mm±0.7mm
Inner tube diameter	37mm±0.7mm, 47mm±0.7mm
Coating material	SS-ALNx/Cu
Absorptance	0.90~0.95 (AM1.5)
Emittance	0.04-0.06(80°C±5°C)
Vacuum degree	≤5.0×10­³ (Pa)
Stagnation temperature	260°C~300°C
Average heat loss coefficient	0.4~0.6W/(m².°C)
Hail resistance	≤25mm
Solar irradiation for obtaining a preset water temperature rise in tube under stagnation	3.7~4.2MJ/m²(Φ58mm) 2.9~3.2MJ/m²(Φ47mm)

(Guangpu) solar energy