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Specification |
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tructure |
one concentric borosilicate glass tubes |
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Material |
Borosilicate glass 3.3 |
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Outer tube diameter |
Φ47±0.7mm &=1.6mm Φ58±0.7mm &=1.6mm |
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Inner tube diameter |
Φ37±0.7mm &=1.6mm Φ47±0.7mm &=1.6mm |
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Length |
47-1500mm/1600mm/1800mm 58-1500mm/1600mm/1800mm/2000mm/2100mm |
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Coating |
AL (单靶) |
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Solar absorption efficiency |
0.80-0.85（AM1.5） |
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Launch ratio |
0.04~0.06（80℃±5℃） |
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Vacuum degree |
P≤5.0×10-3 (Pa) |
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Max stagnation temperature |
Y=260~300㎡C/KM |
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Average heat loss coefficient |
ULT= 0.4~0.6w/(㎡.℃) |
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Resistance performance |
Hail diameter≤ 25mm |
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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/㎡(47/58mm) |
