Tri-element vacuum glass tube
Runsun Vacuum tubes assimilate the advanced 12 layers of spattering deposition Of trivalent element technology, high borosilicate glass, gradual change of ALN/AIN-SS/CU selective complex absorptive coating. And these make vacuum tubes have high performance of absorptance and low reflection ratio. Through the interlayer, vacuum has a unique effect of thermo, with its temperature up to 380 of idle sunning, performing a strong heating ability.
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Type
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Length=1500
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Length=1800
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Glass Thermal Energy Parameter
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3.3*10-6/
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3.3*10-6/
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Outer Glass Tube Diameter
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47MM
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58MM
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Inner Glass Tube Diameter
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37MM
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47MM
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Thickness of the Glass Tube
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1.8MM
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1.8MM
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Transmission Ratio of the Outer Glass Tube
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>0.80
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>0.80
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Length of the Vacuum Tube
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1500MM
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1800MM
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Solar Selective Absorber Coating
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AL-C/S
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AL-C/S
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Absorptance (AM1.5)
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>0.96
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>0.96
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Emission Ration (80)
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<0.06
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<0.06
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Atmospheric Pressure Intensity in Vacuum Jacket
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P<5*10-3
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P<5*10-3
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Stagnation Temperature
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>320 Deg. C
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>320 Deg.C
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Heat Loss Coefficient
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<0.55W/M2
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<0.55W/M2
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Hail Resistant Ability
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<25MM
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<25MM
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Max. Pressure Resistant Ability
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0.8MPa
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0.8 MPa
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