Vacuumized Solar Collector
The vauumized Solar Collector is evacuated for heat insulation. Its selective absorption coating of graded AL-N/AL gathers the solar energy more effectively than the traditional metal flat-plate or pipe type, and entirely transfers the direct and diffuse radiation into heat energy. This collector is semi-tracking and may not be affected by the angle of sunbeam radiation. It means that the absorption of the direct radiation within sunshine hour in a day is all the same. Besides, the segmental surface of the tube collects the reflects the reflect radiation easier than flat-plate collector. It is the best choice for Solar heating system, Water heating system, Air cooling/warming system, & Heat collecting system etc.
- Absorptance: alpha > 90%
- Emittance: phi < 6%
- Vacuum degree: P < 5 x 10^-3pa
- Stagnation temperature: > 200 Celsius
- Tubes have provided extremely reliable in practical applications and can withstand the attack of hailstone on diameter of 2.5mm.
Main Products:
all kinds of HP & HPM heating elements