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2020 hot sales Longpu 137mm*600mm big diameter three target solar vacuum tube for solar cooker
Description
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Product description
Solar vacuum tubes are heart of the Longpu Solar Collector ,responsible for absorbing sunlight and converting it into usable heat. We specialize in producing 125mm and 137mm big diameter solar vacuum tube,which can be used for solar cooker,solar barbecue oven,solar heating ,solar refrigeration,solar energy without tank and solar collector.
Structure
The solar vacuum tube design used by Longpu has proven to be extremely robust.The tube is essentially two glass tubes that are fused at the top and bottom.The inner tube has a solar absorbing coating,and the space between the two tubes is evacuated to form a vacuum.
Technical parameter
| Product name | Three Target Solar Vacuum Tube | |||
| Diamter of outer tube (mm) | 125 | 125 | 137 | 137 |
| Diameter of inner tube (mm) | 111 | 111 | 121 | 121 |
| Tube thickness (mm) | 3.0 | 3.0 | 3.0 | 3.0 |
| Tube Length (mm) | 566/600/700/850mm | 850/1860/2160mm | ||
| Application | Solar cooker | Solar collector | Solar cooker | Solar collector |
| Structure | Three target | |||
| Material | Borosilicate Glass 3.3 | |||
| Material of coating | Copper, Aluminum, Stainless Steel | |||
| Absorptance | ≥0.92 | |||
| Emittance | ≤0.06 | |||
| vacuum | < 3×10-3 Pa | |||
| Transmittance of Outer Tube | 0.92 | |||
| Solar radiance exposure(MJ/m2) | ≤3.6 | |||
| Heat-loss coefficient (w/ (m2*℃) | < 0.5 | |||
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Additional information
| Place of Origin: | Shandong, China |
|---|---|
| Brand Name: | Longpu |
| Model Number: | 137mm |
| Pipe Material: | Glass |
| Product name: | solar vacuum tube |
| Material: | Borosilicate Glass3.3 |
| Diameter: | 137mm |
| Length: | 600mm |
| Application: | solar cooker stove |