Three Target Solar Vacuum Tube

Strucure

All-glass double-layer coaxial

Tube material

High quality borosilicate glass 3.3

Outer tube diameter and thickness

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

Internal tube diameter and thickness

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

Tube length

500mm 800mm 1500mm 1800mm
1900mm 2000mm 2100mm

Absorptive coating

Strucure

ALN/AIN-SS/CU

Sediment method

Magnetron sputtering plating

Absorptance

a=0.93-0.96(AM1.5)

Emittance ratio

Σn:=0.04-0.06(80±5)

Vacuum tightness

p ≤ 5.0 × 10-3 Pa

Stagnation parameter

Y=270-300M2. /kw

Solar irradiation under stagnation

Φ47 H≤3.7MJ/m2, Φ58≤4.7MJ/m2

Average heat loss coefficient

ULT=0.72W(M2. )

Lifetime

15years

Hail resistance

Φ25mm/Φ40mm

Manufacturer

Chaoda solar

Model Number

CD201112

Price Terms

FOB, CIF

Brand Name

Sun island/OEM

Payment Terms

T/T, L/C

Minimum Order

10 pcs

Supply Ability

1,000 pcs/day

Delivery Time

7 days