Structure

All-glass double-tube co-axial structure

Glass material

High borosilicate 3.3 glass

External pipe diameter and thickness

=47±0.7mm &=1.6mm    =58±0.7mm &=1.6mm

=70±0.7mm &=2.0mm

Internal pipe diameter and thickness

=37±0.7mm &=1.6mm    =47±0.7mm &=1.6mm

=58±0.7mm &=1.6mm

Pipe length

1200mm 1500mm 1600mm 1700mm 1800mm 2000mm 2100mm

Absorptive coating property

Structure

Cu/SS-ALN(H)/SS-ALN(L)/ALN

Sediment method

3 target magnetron sputtering plating

Specific abosorption

0.93~0.96(AM1.5)

Emission ratio

0.04~0.06(80±5)

Vacuum tightness

P≤5.0×10-3(Pa)

Idle sunning property parameters

Y=260~300. /KM

Solar irradiation for obtaining a preset water temperature

H≤4.7MJ/(58)   H=3.7~4.2MJ/

H≤3.7MJ/(58)   H=2.9~3.2MJ/

Average heat loss coefficient                   0.4~0.6W/(. )