TECHNICAL SPECIFICATIONS OF SOLAR COLLECTORS
DESCRIPTION VACUUM TUBE
Length 1800mm
Outer tube diameter Ø58mm
Inner tube diameter Ø47mm
Material Borosilicate Glass 3.3
Selective coating Cu--SS--N/AL
Absorbance ≥0.93
Transmittance ≥0.89
Vacuum 5 x 10-³ Pa
Daily Solar absorbance 7.9 MJ/m2
Working pressure 0.7MPa
DESCRIPTION VACUUM HEAT PIPE
Heat conducting pipe material Copper
Heat conducting fin Aluminium
Thermostability ≥250
Heat transfer coefficient ≥220 W
Isothermal performance ≤0.2°C
Length 1700mm
KEY TECHNICAL FEATURES
  • Extreme operating temperatures from sub-zero to 90°C
  • Withstand hail impact up to 25mm size
  • Zero Leakage
  • 100% Copper Heat Pipes
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