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Solar Tubes
Jineng Solar Tubes Specification:
Three-target solar vacuum tube performance and specification:
Tube structure |
All-glass double deck co-axial structure |
|
Glass material |
High borosilicate 3.3 glass |
|
Outer tube diameter and glass thickness |
Φ47±0.7mm; Glass thickness 1.6±0.15mm |
|
Φ58±0.7mm; Glass thickness 1.6±0.15mm | ||
Inner tube diameter and glass thickness |
Φ37±0.7mm; Glass thickness 1.6±0.15mm |
|
Φ47±0.7mm; Glass thickness 1.6±0.15mm | ||
Tube length |
1500mm, 1800mm, 1900mm, 2100mm |
|
Absorptive coating property |
Coating material |
CU/SS-ALN(H)/SS-ALN(L)/ALN |
Sediment method |
Three target magnetron sputtering plating |
|
Absorptivity |
α=0.92~0.96(AM1.5) |
|
Emission ratio |
ε=0.04~0.06(80°C±5°C) |
|
Vacuum Degree |
P≤5.0×10-3 Pa |
|
Stagnation temperature (temperature inside of empty evacuated tubes) |
260~300°C |
|
Average heat loss |
ULT=0.4~0.6W/(m2*°C) |
|
Hail resistence |
Φ25mm |
|
Pressure endure |
0.6MPa |
|
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