Evacuated tube collectors
2Pages

Evacuated tube collectors for domestic water heating and support of space heating Their outstanding design, professional finishing, top quality and high energy yield, as well as their excellent price/performance ratio make them stand out. High-quality corrosion resistant materials ensure smooth operation over a long useful life. Evacuated tubes - two concentrically positioned glass tubes enclosing a gap of evacuated air. The internal glass tube is coated on its external surface with an environmentally friendly, highly selective layer and thus functioning as an efficient absorber. The reliability of SUNSYSTEM tubes was confirmed by positive test results in the impact-from-hail test according to DIN EN 12975-2 and the thermal shock test (ITW test report No. 02COL 282). A highly reflecting, weather-proof CPC reflector* is placed behind the evacuated tubes. Its special geometry ensures that both direct and diffuse sunlight is directed to the absorber even if falling at unfavorable irradiation angles. This substantially improves the energy yield of the solar collector. The reflector is produced from metal sheet with protective coating using accurate roll forming technology. Due to its special fastening technique the reflector can be exchanged without using tools. The inlet and outlet pipes may be fitted on the left or the right of the manifold. Depending on the location of the inlet pipe the sensor is also placed on the right or the left. The piping is produced with just a minimum number of soldering points. This result in high leakage-safety and reduced internal scaling. The heat conducting plates are made of aluminum so that even high stagnation temperatures have no effect on the metal's characteristics. The heat conduction plate is pressed around the two copper tubes. The detachable tube holder can be mounted and demounted from the foot rail without using tools.

Power curve of the SUNSYSTEM evacuated Diagram for the loss of pressure Technical specifications: Number of evacuated tubes a, with wind, in relation to aperture a2 with wind, in relation to aperture Ke,tranS (50°), in relation to aperture Ke.iong (50°), in relation to aperture Yield forecast (reference locationWurzburg, Germany, aperture area 3 m*) Yield forecast [reference locationWurzburg, Germany, aperture area 5 m2) Grid dimensions (length, height, depth) Gross surface area Aperture area Collector volume Connection diameter, clamping ring Sensor sleeve Collector material Glass tube...