Heat pipe solar collector

Solar Collector Features:
Evacuated tubes convert solar energy into thermal energy that is transferred to heat pipes by an aluminum fin with high solar energy absorption and low heat radiance loss. The heat pipe adopts such kind of character that could transmit quantity of heat under low temperature.
Character
1With a testing pressure of 1.0 MPa, this system has a working pressure of 0.6 MPa.
2Solar water heaters can still work even with several tubes broken.
3Highly efficient insulation with integrated polyurethane foam.
Technical data:
Number of Tubes 10, 15, 20, 22, 25, 30
Length of Tube 1800 mm
Outer Tube Diameter 58 mm
Inner Tube Diameter 47 mm
Glass Tube Thickness 1.6 mm
Tube Thermal Expansion 3.3 X 10 -6 oC
Tube Material Borosilicate Glass 3.3
Absorptive Coating Graded AI-N/AI
Absorptance > 90% (AM 1.5)
Emittance 7 % (100 oC)
Vacuum P < 0.005 Pa
Stagnation Temperature < 220 oC
Heat Loss < 0.8 W/m2. oC)
Reflector Ginning Alumnium reflector plate
The out cover of the solar connector Zinc coated steel sputtering manifold.
Frame Zinc coated steel corner sputtering frame
Heat pipe type Big heat pipe
Insulation Polyurethane
Tested pressure 1.0MPa
Working pressure 0.6MPa
Daily efficiency >50%

Evacuated tubes convert solar energy into thermal energy .