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Features:
1.High solar-thermal conversion and low heat loss
2.Stable advanced coating up to 380 ℃
3.Long time warranty to 15 years
4.High level vacuum ensure operation under cold weather
Advanced solar selective coatings
Advanced solar selective coatings employ two patent technologies :
(1) double cermet film structure with the highest photothermal efficiency
(2) metal-Aluminum nitride cermet (M-AlN) materials deposited by a novel sputtering technology.
The typical film structure of M-AlN cermet selective surfaces
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Models
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Ф47×150
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Ф58×180
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Weight
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1.35±0.12kg
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2.29±0.18kg
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Structure
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All glass coaxial double-layer tubes
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All glass coaxial double-layer tubes
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Outer tube diameter
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Ф47±0.7mm
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Ф58±0.7mm
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Inner tube diameter
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Ф37±0.7mm
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Ф47±0.7mm
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Outer Tube thickness
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1.6±0.15mm
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1.8±0.15mm
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Inner tube thickness
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1.6±0.15mm
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1.6±0.15mm
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Tubes length
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1542±4mm
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1812±4mm
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Material of coating
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AlN/AIN-SS/Cu
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AlN/AIN-SS/CU
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Absorptance
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0.94~0.96
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0.94~0.96
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Emittance
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0.04~0.06
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0.04~0.06
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Vacuum
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P≤5×10-3pa
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P≤5×10-3pa
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Transmittance of Outer Tube
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0.91
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0.91
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Stagnation temperature (height)
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270~300 ℃
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270~300 ℃
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Heat-loss coefficient
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≤0.6w/ m2* ℃ )
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≤0.6 w/ (m2* ℃ )
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Bearing hailstone ability
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hailstone diameterФ25mm
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hailstone diameterФ25mm
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Pressure-endure ability
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1MPa
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1MPa
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