Quick Detail
Place of Origin
HS-CODE
27-
Package & Delivery Lead Time
Detailed Description
Specifications
solar vacuum solar tube with high efficiency and low heat loss coefficient
Why choose us:
A: 18 years experience in solar vacuum tube
B: First quality, Promptly delivery, Customer first
C: Competitive price & Free sample for test
Guangpu ,established in 1995,is a leading professional manufacturer of solar thermal products ,especially in sollar vacuum tube. We are one of the drafters of the national standard of “All-glass heat pipe- evacuated solar collector tubes" for the National Standardization Committee. In 18-year development,we have possessed advanced technology and superior equipments for quality, schedule and cost control. We have annual production capacity over 10 million of various high-quality all-glass evacuated solar collector tubes.We have been continuously supplying solar products with best quality to well-known solar thermal companies both in China and other counties across the world. With 18 years experience and professional knowledge ,we are glad to help your team succeed through our cooperation.
Double-target magnetron sputtering
solar vacuum tube
Tube glass
Material
High borosilicate 3.3 glass &=1.6mm
Thermal expansion coefficient
≤3.3×10-6K
Transmittance
≥0.90
Outer tube diameter & thickness
Ø=47±0.7mm &=1.6mm
Ø=58±0.7mm &=1.6mm
Inner tube diameter & thickness
Ø=37±0.7mm &=1.6mm
Ø=47±0.7mm &=1.6mm
Tube length
1500/1600/1800mm
1500/1600/1800/2000/2100mm
Vacuum degree
P≤2.0*10-3Pa
Selective absorber
Material
SS-C/Cu
Absorption ratio
α=0.90~0.92(AM1.5)
Emission ratio
ε=0.04~0.06 (80°C±5°C)
Maximum stagnation temperature
Y=250m2 °C/KW
Solar irradiation for stagnation
H=2.9~3.2MJ/m2
H=3.7~4.2MJ/m2
Average heat loss coefficient
ULT=0.4~0.6W/(m2°C)
Mechanical shock resistance
Withstand the vertical impact of a steel ball with 30mm in diameter free falling
from a height of 450mm
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