Solar ETC Water Heater and its technology description

1. ETC MANIFOLD SOLAR WATER HEATER
TECHNICAL SPECIFICATION
 Collector design type : Evacuated glass tube manifold
 Selective coating type : World latest magnetron sputtering solar
Selective coating technology with AL-N/AL
 Thickness of coating : 330 +/- 10mm
 Thermal expansion : 0.00033 / dec.c
 Configuration : Three concentric borosilicate glass tubes
 Absorber details
a) Material : Evacuated Glass tubes
b) Tube length : 1800mm
c) Outer tube diameter : 58 mm
d) Inner tube diameter : 47 mm
e) Thickness of glass tube : 1.6mm
Solar absorption of glass tube : 0.93
 Solar emittance : 0.06
 Insulation : Vacuum jacket
 Manifold details
a) Inner material : Stainless steel 304 or GI
b) Thickness : SS-0.7 mm or GI 2.5mm
c) Outer material : GI powder coated
 Manifold insulation
a) Material : PUF
b) Thickness : 50mm
 Gasket for tubes : Silicon rubber
 Hardware : Stainless steel / Zinc plated
 Finish (Powder coated) : for all frame and manifold