CHANGZHOU RAVEN NEW ENERGY TECHNOLOGY LTD
CHANGZOU RAVEN NEW ENERGY TECHNOLOGY LTD We make sun work for you !
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Solar Vacuum tube 58/1800mm
| Solar Vacuum Tube | |||||||||||
| Model | 58*500 | ||||||||||
| Outer Diameter/Length of Tube | φ58mm/500mm | ||||||||||
| Structure | All glass double tube co-axial | ||||||||||
| Glass material | High borosilicate 3.3 glass | ||||||||||
| Absorptive coating property | Material | Cu/SS-ALN(H)/SS-ALN(L)AlN | |||||||||
| Sediment method | 3 high magnertron sputtering plation | ||||||||||
| Specific absorption | As=0.93～0.96(AM1.5) | ||||||||||
| Emission ratio | ∑h=0.04～0.0.06(80°C±5°C) | ||||||||||
| Vacuum degree | P≤5×10-3Pa | ||||||||||
| Idle sunning property parameters | Y=200~300㎡.℃/KW | ||||||||||
| Solar irradiation for obtaining a preset water temperature | H≤4.7MJ/㎡(Φ58), H≤3.71~4.2MJ/㎡ | ||||||||||
| Average heat loss coefficient | ULT=0.4~0.6W/(㎡.℃) | ||||||||||
| Loading Qty (piece) | 20GP | ||||||||||
| 7500 | |||||||||||
Vacuum tubes assimliate the advanced 3 layers of sputtering deposition of trivalent element technology, high borosilicate glass, gradual change of ALN/ALN-SS/CU selective complex absorptive coating. And these make vacuum tubes have high performance of absorptance and low reflection ratio. Through the interlayer, vacuum has a unique effect of thermo, with its temperature up to 380 Celsius degree of ideal sunning, performing a strong heating ability.