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Product name | Heat Pipe Solar Vacuum Tube | Three target coating solar vacuum tube | |||
structure | All-glass double-tube co-axial structure with copper heat pipe | All-glass double-tube co-axial structure | |||
Glass material | High borosilicate glass 3.3 | ||||
Outer tube diameter and glass thickness | Ø=47±0.7mm&=1.6mm; Ø=58±0.7mm&=1.6mm; Ø=70±0.7mm &=2.0mm | Φ=47±0.7mm &=1.6mm ±0.15mm Φ=58±0.7mm &=1.6mm ±0.15mm Φ=70±0.7mm &=2.0mm ±0.15mm | |||
Inter tube diameter and glass thickness | Ø=37±0.7mm &=1.6mm; Ø=47±0.7mm &=1.6mm; Ø=58±0.7mm &=1.6mm, | Φ=37±0.7mm &=1.6mm ±0.15mm Φ=47±0.7mm &=1.6mm ±0.15mm Φ=58±0.7mm &=1.6mm ±0.15mm | |||
Structure | Cu/SS-ALN | ||||
Sediment method | Three target magnetron sputtering plation | ||||
Absorption ratio | α=0.93~0.96(AM1.5) | ||||
Emission ratio | Σh=0.04~0.06(80°C±5°C) | ||||
Thickness | 1.6mm/2.0mm/2.2mm | ||||
Vacuum tightness | P≤5.0×10-3Pa | ||||
Heat loss | 0.4~0.6W/ (m². °C) | ||||
Copper condenser | 1mm thick, 14mm dia, 550mm length | ||||
Copper pipe | 0.6mm thick, 8mm dia, 1700mm length | ||||
Aluminum fins | 2 pieces | ||||
Resist cold | -30°C | ||||
Resist high temperature | 250°C | ||||
Hail resistance | Ø25mm/ Ø40mm | ||||
Service life | 15 Years | ||||











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