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HEAT PIPE SOLAR COLLECTOR

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Evacuated heat pipe technology
1. Evacuated tubes based on the thermos flask principle and consisting of two concentric glass tubes and an evacuated gap to prevent heat loss.
2. Highly selective absorber layer on the inner glass tubes (AI/ALN,) which enables an optimum energy yield.
3. Aluminium heat transfer plate to provide an optimum heat transfer medium system.
4. Copper heat pipes transfer the extracting heat effectively.
5. Rock wool insulation with an aluminium lamination in order to prevent heat loss in the manifold.
6. Compression ring fitting (Ø 22 mm) for flow and return which enable a safe and easy-to-install pipework connections.
7. The most common working fluid is waterfor ambient temperatures of - 30 °C to an operating temperature to 90 °C.

Heat pipes made in China
The evacuated heat pipe technology uses the maximum fraction of solar irradiation at minimum ambient temperatures of -30  °C and maximum operating temperatures to 90 °C.

Key benefits:
- High collector efficiency of medium temperature suitable for pressurized and non-pressurized solar thermal applications.
- Due to the rapid heat conductivity evacuated heat pipe collectors are suitable for solar thermal applications in cooler areas with low ambient temperatues.*
- Well-known indestructibility of the evacuated heat pipe collectors according to DIN EN 12975-2.
Recommended application areas:
Hot water generation and heating support.
*in dependence on the respective heat transfer medium.


Product Characteristics

1.     Short installation times due to complete pre-assembled collectors.

2.     Manageable module sizes for a very high performance and a quick and easy installation.

3.     Highly efficient thermal insulation.

4.     Flow and return pipes may be filled on the left or the right side of the manifold.

5.     High flexibility due to the different widths and lengths of the collectors.

6.     Pressurized and non-pressurized operation.

7.     Season independent operation depending on the heat transfer medium.

8.     Rapid thermal conductivity.

9.     High energy yield and low heat loss due to the high vacuum of the evacuated tubes.

10.   Operating at minimum ambient temperatures of -30 °C to maximum operating temperatures of 90 °C.

11.   Two loop system to constantly maintain a good water quality and to ensure water on cold days due to the anti-freezing medium in the solar circulation loop and an easy integration of other energy supplies.




R1820R1824R1830
Dimension1970*1551*161mm1970*1851*161mm1970*2301*161mm
Gross area3.06 ㎡3.65 ㎡4.53 ㎡
Aperture area1.87 ㎡2.25 ㎡2.81 ㎡
Number of evacuated tube202430
Outer diameter / length of evacuated tubeφ58/1800mmφ58/1800mmφ58/1800mm
InsulationRock woolRock woolRock wool
Diameter of the condensing end of heat pipe24mm24mm24mm
Diameter of the horizontal copper pipe38mm38mm38mm
Efficiency based on aperture area, Solar Keymark EN1297574.5%74.5%74.5%
Annual collector energy yield under Solar Keymark, based on ISO 9806:2013  (at mean fluid temperature of 50℃, location Würzburg) kWh147817632188
Stagnation temperature267.6℃267.6℃267.6℃
Connetion diameter, mm222222
Allowed heat transfer mediumWater/glycolWater/glycolWater/glycol


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