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Solar Keymark and SRCC Certified Solar Collectors Appication (20tube)

Solar collector details



Solar collector working principle:

1. The heat pipe series 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.


Solar collector specification
1. Manifold (interior): 0.8mm thickness Red copper
2. Manifold (exterior): 2. 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

Solar collector applications:
1. Hotels, resorts, hospitals and hostels
2. Process industry, boiler feed, laundry and canteens
3. Agricultural sector, hatcheries and dairies
4. Process industry, Boiler feed, Laundry and canteens
5. Agricultural sector, hatcheries, and dairies
6. Swimming pool heating
7. In-process heating
8. Health clubs (Steam / Sauna)

Solar collectors material 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
Solar collectors technical data
Model name FD-SC-20B
Number of tubes 20
Gross area (m2) 3.224
Aperture area (m2) 1.85
Absorber area (m2) 1.610
installation size (L*W * H) 2060*1565*1450
Weight empty (KG) 70
Fluid volume( L) 1.2
Test flow rate (ml/s. m2) 342
Heat transfer medium pure water/glycol
Working pressure 6 bar
Max testing pressure 12 bar
Stagnation temperature 280°C
Peak efficiency n° 0.795
Solar transmittance 93%
Solar Absorptance 93%
Hemispherical emittance 6.5%
Inlet/outlet connection Φ22mm
Manifold packing mm 1*2000*200*160
Tubes packing mm 2*1930*350*180
FD-SC-20B Highest power output per collector: 1235W G=1000W/m2


FD-SC-20 Installation:



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