Evacuated Tube Solar Collector for Central Hot Water Heating System
| Basic Info. | |
| Trademark | 0EM/SolarShine |
| Specification | 2000X1 000x78mm |
| HS Code | 84199010 |
| Transport Package | Standard Export Packing |
| Origin | China |
After invented in the 1980s, vacuum tube solar collector has become more and more popular, it is another type of solar collector with higher efficiency, simpler installation and lower cost than traditional flat plate solar collector. It is widely used in house solar water heater and central solar hot water heating system.
The SolarShine vacuum tube collectors can minimize the heat losses by virtue of the vacuum in the tubes, combined with high selective surface coating and vacuum insulation of the absorber element, the vacuum tube solar collector can get very high heat extraction efficiency.
Our design of the vacuum tube solar collector is very flexible, it can be used to make the appropriate support and installation method according to the installation size of different building roofs.
| Regular models specification | |||||
| ModevCapacity | 25 | 50 | 100 | 150 | 200 |
| Vacuum tube | 58*1800 high efficiency callector vacuum tubes | ||||
| vacuum tubes quantity | 25PGs | 5oPcs | 1D0Pcs | 150PcS | 2oDPcs |
| Mounted directian | Vertical | Harizantal | |||
| lnstallatian size need for ground |
2X1.65 | 3.8X1.85 | 3.8X4.2 | 3.8X6.2 | 3.8X8.2 |
| Manifold inside material | sus304 2日/31BL(Optional) | ||||
| Manifold Outer cover | Stainless steel / Colorful painted steel | ||||
| lnsulation | High density polyurethane foam (Non-CFC) | ||||
| Ground stand | All stainless steel stand | ||||
| Specification of vacuum tube | |
| Structure | All- glass double- tube co- axial structure |
| Glass Material | High borosilicate glass 3.3 |
| External Pipe Diameter & Thickness | Ø= 58 ± 0.7mm & = 1.6mm, |
| Internal Pipe Diameter & Thickness | Ø= 47 ± 0.7mm & = 1.6mm, |
| Pipe Length | 1800mm |
| Coating Layers | Cu/ SS- ALN (H) /SS- ALN (L)/ ALN |
| Coating Method | Three target magnetron sputtering plation |
| Specific Absorption | as= 0.93 ~ 0.96 (AM1.5) |
| Emission Ratio | Σh= 0.04 ~ 0.06 (80°C ± 5°C) |
| Vacuum Tightness | P≤ 5.0×10- 3Pa |
| Idle Sunning Property Parameters | Y= 260 ~ 300m². °C/KW |
| Solar Radiation for Obtaining a | H≤ 3.7 MJ/ m² (Ø47), H=2.9 ~ 3.2 MJ/ m²; |
| Preset Water Temperature | H≤ 4.7 MJ/ m²(Ø58), H= 3.7 ~ 4.2 MJ/ m². |
| Average Heat Loss Coefficient | ULT= 0.4 ~ 0.6W/ (m². °C) |
We have two types vacuum tube collectors available, you can choose 25 vertical tubes each set or 50 horizontal tubes each set, for horizontal mounted 50 Tubes type, its heating capacity is 700- 1200L/ set, for vertical mounted 25 Tubes type, its heating capacity is 350-600L/ set.
Each set consists of three parts: ground mounting bracket/ all- glass vacuum collector tube and manifold, the bracket material is stainless steel and aluminum alloy, manifolds materials are internal SUS304/ external SUS202, and its middle layer is polyurethane.
Maximum heat output: our 25 tubes collector’s aperture Area is 4 m², comprehensive efficiency is about 75%, heat output depends on actual solar radiation，for example, if solar radiation is 900W/ M2, then heat output is 900 X 4 X 0.75 = 2700W.
Required water flow: about 10L/ minute.
Temperature through the system: To achieve maximum output we use temperature difference cysle system, when the outlet temperature of the solar collector is 8- 10 ℃ higher than the water tank temperature, the temperature difference cycle is started.
When the temperature difference is reduced to 4 ℃, the temperature difference cycle is closed.
