vacuum tube/solar water heater energy collector

Structure

All-glass double-tube co-axial structure

Glass material

High borosilicate 3.3 glass

External pipe diameter and thickness

Φ=47±0.7mm&=1.6mm Φ=58±0.7mm&=1.6mm Φ=70±0.7mm&=2.0mm

Internal pipe diameter and thickness

Φ=37±0.7mm&=1.6mm Φ=47±0.7mm&=1.6mmΦ=58±0.7mm&=1.6mm

Pipe length 

800mm 1200mm 1500mm 1600mm 1800mm 1900mm 2000mm 2100mm

Absorptive coating property

structure

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

Sediment method

3 target magnetron sputtering plating 

Specific absorption

A=0.92~0.96(AM1.5)

Emission ratio

0.04--0.06 (80oC±5oC)

Vacuum tightness

P≤5.0×10-3 Pa)

Idle sunning property parameters

Y=260---300m2.C/KW

Solar irradition for obtaining a preset water temperature

H≤4.7MJ/m2(Φ58)

H=3.74.2MJ/m2

H≤3.7MJ/m2(Φ47)

H=2.93.2MJ/m2

Average heat loss coefficient

U=0.40.6W/(m2.oC)

Size

Capacity(L)

Absorb area(m2)

20GP/40GP loading qty(pc)

Solar tube

47*1200

1.29

0.07

4200 / 8960

47*1450

1.56

0.08

3360 / 7280

47*1500

1.61

0.09

3360 / 7140

47*1600

1.72

0.09

3220 / 6860

47*1800

1.93

0.10

2940 / 6020

58*1200

2.17

0.90

3000 / 6480

58*1500

2.71

0.11

2400 / 5280

58*1600

2.89

0.12

2280 / 5040

58*1650

2.98

0.12

2280 / 4800

58*1700

3.07

0.13

2280 / 4680

58*1750

3.17

0.13

2160 / 4560

58*1800

3.26

0.14

2160 / 4440

58*1900

3.44

0.14

1920 / 4200

58*2000

3.62

0.15

1920 / 4080

58*2100

3.80

0.16

1920 / 3960

70*1800

5.09

0.17

1500 / 3000

70*2000

5.65

0.19

1300 / 2800

70*2100

5.93

0.20

1300 / 2800