Technical Data
Model tape | TM70 | ||
Length | 1700mm | Absorption coefficient | >92% |
Glass tube diameter | 70mm | Emission coefficient | <8% |
Glass thickness | 2.0mm | Vacuum | <5x10-2 Pa |
Glass Material | Borosilicate Glass 3.3 | Wind resistance | 30m/s |
Absorptive Coating | AL/N/AL | Freezing resistance | -50°C |
Absorber material | Aluminum | Stagnation Temperature | >220oC |
Condenser size | 14x75mm | Net weight | 2.21kg |
Hot water output 17Mj/m2.day T=35°C | 8.5L |
The test report provided by German customer in the following figure show that the stagnation
The new evacuated heat-pipe tube is a revolutionary breakthrough in solar thermal technology
as well as the symbol of a great leap in solar thermal utilization field after mankind’s continuous
researches year after year. The tube has the following advantages:
1. Heat-pipe conduction, no water inside, thus it is successfully prevented from the defects of tube
block and low power output caused by water fouling and deposits of mud and sand.
2. It prevents the tube from being easily broken caused by the volume expansion when the water
in tube freezes in frigid season.
3. Start up quickly. Energy inside the tube can be taken out within 2 minutes under sunshine. The
stagnation temperature of the heat-pipe can reach 220°C .
4. High efficient selective absorptive coatings and vacuum heat insulation technology ensure the
tube to get higher heat output in cloudy weather and in moist area, especially in winter.
5. Solar collecting plate is installed and sealed inside the tube of high-quality borosilicate glass with
5x10-3Pa of vacuum, so it cannot be corroded event in moist area.
6. It perfectly solves the fetal defect of the common all-glass vacuum tube solar water heater, which
can not run if one of the tube is out of work.