2011 New Type U-type Solar Collector

U-type Solar Collector
Manifold: Stainless Steel 304/2B or Aluminium Alloy
Insulation: Rock Wool or Polyuretha
U-type Solar Collector


Feature:
1.Can operate with water pressure up to 0.6MPa;
2.Can be combined with existing energy source
3.Storage do not need be installed above the collector

Working Principle:
The U type series solar collector are always connected with existing heating supply device, The selective coating on the inner cover of the evacuated tube converts solar energy into heat energy and transfers heat to metal U tube by an aluminum fin. The liquid (usually glycol water antifreeze mixture) in the metal U tube is heated, and conducts the heat energy to the water inside
the storage tank through plate exchanger or internal spiral coils.

U-type solar collector specification
Solar collector description
Collector:
Type name:
RHU 15/1.5
RHU 18/1.8
Flat plate/evacuated/subatmospheric
Evacuated
Gross area:
2.02 m
2
2.60 m
2
Apture area:
1.16m
2
1.70m
2
Absorber area:
0.33m
2
1.46m
2
Weight empty:
55 kg
64 kg
Fluid content:
1.78L
2.92L
Number of covers:
1
Cover of materials:
Borosilicate glass
Cover of thickness:
1.5 mm
1.8 mm
Number of tubes or channels:
15
18
Tube diameters or channel dimensions:
φ 47/58 mm
Tube or channel pitch:
72 mm
Heat transfer medium:water/oil/other
Water-Glycol
Specifications(additives etc):
——
Alternative acceptable heat transfer fluids:
——
Absorber:
Materials:
Glass
Surface treatment:
Graded AlN/SS -AlN/Cu on glass
Construction type:
Evacuated double glass tube, heat-conducting metal sheet, U-tube Cu
Dimensions:
D:φ 47 mm L: 1.5m
D:φ 58 mm L: 1.8 m
Thermal insulation and casing:
Thermal insulation thickness:
Average 20mm
Average 20mm
Insulation material:
Polyurethane
Sealing material:
Silicon rubber
Limitations:
Maximum operation temperature:
250 °C
Maximum operation pressure:
6 bar