|
Structure |
Entire glass double barrel coaxial structures |
|
Material |
Glass tube material: borosilicate glass 3.3 |
|
Outside diameter |
Φ47±0.7mm &=1.6mm Φ58±0.7mm &=1.6mm |
|
Internal diameter |
Φ37±0.7mm &=1.6mm Φ47±0.7mm &=1.6mm |
|
Specification length |
47-1500mm/1600mm/1800mm |
|
58-1500mm/1600mm/1800mm/2000mm/2100mm | |
|
Selective absorber coating material |
Cu SS-ALN(H)/SS-ALN(L)/ALN |
|
Solar absorption efficiency 0.90~0.95(AM1.5) | |
|
Launch ratio 0..04~0.06(80oC±5oC) | |
|
vacuum degree |
P≤2.0×10ˉ3(Pa) |
|
Maximum stagnation temperature |
260~300oC |
|
Average heat loss coefficient |
U 0.4~0.6w/(m2.oC) |
|
Resistance performance |
Φ≤ 25mm |
|
Solar irradiation for obtaining a preset water temperature rise in an all-glass evacuated solar collector tube under stagnation |
H=3.7~4.2 MJ/(58mm) H=2.9~3.2MJ/(47mm) |
