- Contact Person : Ms. Shentai Andrea
- Company Name : Zhejiang Shentai Solar Energy Co., Ltd.
- Tel : 86-573-87862566
- Fax : 86-573-87862577
- Address : Zhejiang,Haining,Yuanhua Industrial Park, Haining City, Zhejiang Province. China
- Country/Region : China
- Zip : 314416
evacuated tube solar thermal panels
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Vacuum solar collector details
Model: SR/SCM
Vacuum solar collector working principle:
1. The heat pipe series vacuum solar collector are always connected with existing heating supply device.
2. The selective coating on the inner Cover of the evacuated tubes converts solar energy into heat energy and transfers heat to the heat pipes by aluminium fins.
3. The liquid in the heat pipe changes into vapour which rises to the condenser.
4. The heat then passes through the heat exchanger and the vapour becomes liquid, returning to the base of the heat pipe.
5. The heat conducts to the heat transfer liquid (anti-freezing liquid or water) via a copper pipe.
6. This transference of heat into the liquid creates a continuous circulation as long as the collector is heated by the sun.
Vacuum solar collector specification1. Manifold (interior): 0.8mm thickness Red copper 2. Manifold (exterior): 2.0 mm thickness Aluminum alloy 3. Glass tube dimensions: 58mm x 1.800mm
4. Insulation layer: 45mm thickness glass firber /polyurethane layer 5. Heat preservation: 72-96hrs 6. Hail resistance: 25mm 7. Max pressure: 6 bar 8. Coating of vacuum tube: Ss-c/cu 9. Frame: 2.0mm thickness Aluminum Alloy
Technical Data of vacuum solar collector | |
Description | vacuum solar collector |
Numbers of tube(pcs) | 30 |
Absorber area approx.(m2) | 2.813 |
Hydraulic Connections | G3/4" male thread |
Fluid volume(L) | 1.0 |
Maximum operation pressure(Bar) | 6 |
Test pressure(Bar) | 9 |
Heat transfer fluid | Anti-freeze Fluid (Water-Glycol) |
Max.working temp. | 250C |
hot water(L/Day) | 200 |
ΔT | 35C(Radiation>=800w/m2.day) |
Collector efficiency | 76.4% |
Medium | Pure water |
Start-up Temperature of heat pipe | <=30C |
warranty | 5 years |
Vacuum solar collector specification
Flow type | Heat pipe |
Heat pipe material | TU1 copper |
Heat pipe size | Top: Ø14* 1mm; Body: Ø8* 0.6mm thickness |
Tube diameter | φ47/1500mm or φ58/1800mm |
Solar vaccum glass tube | High boron-silicon |
Coating of absorber on glass tube | Al-N-Al,Copper,Stainless steel |
fins around heat pipe | single long Aluminum(1.68m) |
Manifold pipe material | TU1 copper (Ø35x0.8mm) |
Manifold casing material | Aluminum alloy (2.0mm) |
Insulation material in manifold casing | Glass fiber |
Thickness of insulation(mm) | 45 |
Density of insulation (kg/m3) | 90 |
Frame material | Aluminum alloy frame (2.0mm) |
Sealing Materials | EPDM |
Heat pipe technical data
Item | Measured value |
Heat conduction coefficient | >99% |
Axial heat transition auantity | 0.93-2.49kw/cm² |
Heat conduction speed | >200mm/s |
Axial temperature difference | 1-2centi-degree/m |
Starting temperature | 20centi-degree |
Starting speed | 2min |
Working temperature range | 30centi-degree~300centi-degree |
Resistance to high temperature | No deformation in 48hours under 250C high temp condition |
Resistance to low temperature | -35C |
Life | >10years |
