Vacuum receiver is one of the key parts of solar energy system, it is made of three main parts: glass shell, stainless steel evacuated tube solar collector, soft sealing device, the stainless steel solar collector is available in selective absorption of coatings and between the evacuated tube solar collector and the glass shell is the vacuum.
FeaturesModel | VZK102-42/2860 | ||
Length | mm | 2860 | |
Glass tube | Diameter (thickness) | mm | φ102(2.8)mm |
Transmittance | T≥92% | ||
Stainless steel tube | Diameter (thickness) | mm | φ42(2)mm |
Weight | Kg | 12.3 | |
Operating | MPa | ≤3 | |
pressure | |||
Selective coating | Absorptance | α≥94% | |
Emissive | ε≤10% (at approx.200℃) | ||
vacuum degree | Gas pressure ≤(1~3)×10-2Pa | ||
Max operation temperature | ℃ | 280 | |
Ambient temperature | ℃ | - 40 ~ 60 | |
Impact resistance | Solid steel ball of φ30mm falls freely from a height of 0.5m on it and there is no damage. |