- Contact Person : Mr. fan hongxiang
- Company Name : Jiaxing Damei Sunshine New Energy Technology Co., Ltd.
- Tel : 0086-0573-87870505
- Fax : 0086-0573-87863178
- Address : Zhejiang,haining,yuanhua town
- Country/Region : China
- Zip : 314416
2012 hot New solar vacuum tube
58mm/1800mm Solar vacuum tube:
Three-target all-glass vacuum heat collection tube property and specification
Structure | All-glass double-tube co-axial structure | |
Glass material | High borosilicate 3.3 glass | |
External pipe diameter and thickness | Φ=58±0.7mm &=1.6mm | |
Internal pipe diameter and thickness | Φ=47±0.7mm &=1.6mm | |
Pipe length | 1800mm | |
Absorptive coating property | Structure | Cu/SS-ALN(H)/SS-ALN(L)/ALN |
Sediment method | 3 target magnetron sputtering plating | |
Specific absorption | 0.93~0.96(AM1.5) | |
Emission ratio | 0.04~0.06(80°C±5°C) | |
Vacuum tightness | 5.0×10-3Pa | |
Idle sunning property parameters | 260~300m².°C /KW | |
Solar irradiation for obtaining a preset water temperature | H≤4.7MJ/ m²(Φ58) | H=3.7~4.2MJ/ m² |
H≤3.7MJ/ m²(Φ47) | H=2.9~3.2MJ/ m² | |
Average heat loss coefficient | 0.4~0.6W/(m².°C) | |
Resistant Hail | 25mm | |
Life aged | 15 years | |
the high efficient tube is red inside, better than the traditional tube which is black
2012 hot New solar vacuum tube
