Leap Australasia Ltd
SOLARGENIUS Brief Technical
Guide Created on 25/06/2008
Page 2 of 5
A2 - EVACUATED GLASS TUBE
Each glass tube in the
SOLARGENIUS
ET
system is manufactured from tough borosilicate glass within a quality
controlled environment conforming to ISO90001 standard.
Model Number
TB-70-1900 (05C007)
Length
1838mm
Outer Tube Diameter
70mm
Inner Tube Diameter
66mm
Glass Thickness
2mm
Thermal Expansion
3.3 x 10
-6
º
C
Material
Borosilicate Glass 3.3
Absorber Dimension
1670mm x 62mm
Absorptive coated-heat
fin
Graded Al-N-Al
Absorption
>92% (AM1.5)
Reflectivity
<8% (80
º
C)
Vacuum
<5x10
-2
Pa
Stagnation temperature
>220
º
C
Heat Loss
<0.8W/(m
2
º
C)
Maximum strength
0.8MPa
Absorber Material
Aluminium
Wind resistance
30 m/s
Net weight
2.21Kg
Freezing resistance
-15
º
C
