5 yrs
5 yrs
Warranty
0.8 MPa
0.8 MPa
Strength (pressure tested)
withstand hailstone of 25mm in diameter
impact resistance
5*10-6 Pa
5*10-6 Pa
pressure
1500 mm
300 mm
1200 mm
1500 mm
Length
250
220
stagnation temperature
0.65 W/m2
0.80 W/m2
heat loss coeffiecient
0.05
0.08
emittance (80)
0.943
0.9
Solar absorptance (AM1.5)
graded Al-N/Al selective surface, sputtering
Solar selective absorbing coating, Technology
0.91
0.91
transmittance of cover tube
37 mm
37 mm
DIA of absorber tube
47 mm
47 mm
DIA of cover tube
3.3*10-6/
3.3*10-6/
glass thermal expansion coeffiecient
two concentric borosicilcate glass tubes
configuration
SL-1500
SL-300
SL-1200
SL-1500
item
Cercis
Standard
type
Specifications for all-glass evacuated solar collector tube
All-glass Evacuated Solar Collector Tube:
--Excellent solar-thermal conversion and low heat loss;
--Long vacuum life time.
Supply Ability: | 10000 Dozen per Month |
Pipe Material: | Glass |
Application: | Solar Thermal |
Type: | Vacuum Solar Collector |
Brand Name: | Tsinghua Solar |
Place of Origin: | Beijing China (Mainland) |