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Metal Glass Heat Tube

2014-12-31      View:
  • Brand   Sunpark
  • Type   70x1900,70x2100
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Introduction

Features:

1).This is Full Vacuum Tube with Direct Flow Pipe.
2).High heat efficiency, 15% higher efficiency than normal vacuum tube.
3).The direct flow pipe is made up by two concentric single-wall-tubes.
4).Cold water follows through the inner tube from upside down and flows out to the collector from the bottom through the space between the inner & outer tube,
taking the heat made by the absorber
5).It could be installed at any angle, even horizontally, while normally heat pipe tube should be installed at 30°-90°

Detail of specifications:

Type DF 70/1700
DF 70/1900
Weight
2.29 kg
2.55 kg
Installation angel
0° – 90°
0° – 90°
Dimension
Ø70 mm x 1700 mm
Ø70 mm x 1790 mm
Heat pipe
Inner copper pipe: Ø 8 mm,Outer copper pipe: Ø 15 mm
Inner copper pipe: Ø 8 mm,Outer copper pipe: Ø 15 mm
Absorber material
Copper;Thickness: 0.6 mm
Copper;Thickness: 0.6 mm
Selective coating
SS-AlN-CU;Absorptance: a > 0.92;Emittance: ε < 0.08
SS-AlN-CU;Absorptance: a > 0.92;Emittance: ε < 0.08
Glass tube
material :Borosilicate glass, Thickness: 2 mm
material :Borosilicate glass, Thickness: 2 mm
Vacuum
< 10-8 bar
< 10-8 bar
Min. ambient tem.
-50°C
-50°C
Stagnation temp.
300°C
300°C
Resistance to hail
Ø35mm
Ø35mm

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