Basic Specifications of solar vacuum tube:
Coating: Al-N-Al
Type | Length=1200 | Length=1500 | Length=1500 | Length=1800 |
Glass Thermal Energy Parameter | 3.3*10-6/ | 3.3*10-6/ | 3.3*10-6/ | 3.3*10-6/ |
Outer Glass Tube Diameter | 47MM | 47MM | 58MM | 58MM |
Inner Glass Tube Diameter | 37MM | 37MM | 47MM | 47MM |
Thickness of the Glass Tube | 1.6MM | 1.6MM | 1.8MM | 1.8MM |
Transmission Ratio of the Outer Glass Tube | >0.80 | >0.80 | >0.80 | >0.80 |
Length of the Vacuum Tube | 1200MM | 1500MM | 1500MM | 1800MM |
Solar Selective Absorber Coating | AL-N/AL | AL-N/AL | AL-N/AL | AL-N/AL |
Absorptance (AM1.5) | >0.93 | >0.93 | >0.93 | >0.93 |
Emission Ration (80) | <0.07 | <0.07 | <0.07 | <0.07 |
Atmospheric Pressure Intensity in Vacuum Jacket | P<5*10-3 | P<5*10-3 | P<5*10-3 | P<5*10-3 |
Stagation Temperature | >230 Deg. C | >230 Deg. C | >230 Deg. C | >230 Deg.C |
Heat Loss Coefficient | <0.75W/M2 | <0.75W/M2 | <0.75W/M2 | <0.75W/M2 |
Hail Resistant Ability | <25MM | <25MM | <25MM | <25MM |
Max. Pressure Resistant Ability | 0.8MPa | 0.8MPa | 0.8MPa | 0.8 MPa |
Model no.:
Dia. 47 with length of 1500mm.
Dia. 58 with length of 1500mm.
Dia. 58 with length of 1600mm.
Dia. 58 with length of 2000mm.. 