Evacuated tube collector technology with CPC-refelector by Ritter Solar
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/AIN,) which enables an optimum energy yield.
3. Aluminium heat transfer plate to provide an optimum heat transfer medium system.
4. U-shaped stainless steel pipes are transporting the extracting heat effectively.
5. Mineral wool insulation with an aluminium lamination in order to prevent heat loss in the manifold.
6. Compression ring fitting (Ø 12 mm) for flow and return which enable a safe and easy-to-install pipework connections.
7. In order to increase the efficiency of the evacuated tubes, a highly reflecting, weather-proof CPC-reflector (Compound Parabolic Concentrator) is placed behind the evacuated tubes.
CPC-reflector made in Germany
In order to increase the efficiency of the evacuated tubes, a highly reflecting, weather-proof CPC-reflector (Compound Parabolic Concentrator) is placed behind the evacuated tubes. The special mirror geometry ensures that even at unfavorable irradiation angles direct and diffuse sunlight falls onto the absorber. This substantially improves the energy yield of a solar collector. Unfavorable irradiation angles are given at diagonally incoming light (azimuth angle) (no south adjustment of the mounting area, sun progress from east to west, diffuse irradiation).
The mirror is produced from a metal sheet with protective coating using accurate roll forming technology. Due to the special fastening technique the mirror can be exchanged without using tools.