Solar ETC Vacuum Tube
Outer Diameter of the tube
58 mm
Inner Diameter of the tube
47 mm
Glass Thikness
1.8 mm
Length of tube
1.8 m
Selective coating type
AIN / AIN-SS / CU-Sputtering
Material of the tube
Borosilicate Glass 3.3
Thermal Expansion
3.3 X 10-6 / °C
Outer Diameter of the tube
58 mm
Emission ratio
< 0.07
Vacuum
P < 5 X 10-3 Pa
Stagnation Temperature
> 200 .C
Heat Loss Coenfficient
< 0.7 5 w/m2
Inclination
17°
Mass Flow Rate
15 kg / hr
Ambient Temperature
31 - 34°C