Category: EuroSun2008-5

AN EXPERIMENTAL ANALYZE OF A SOLAR COLLECTOR

G. Zorer Gedik1* and A. Koyun2 1Yildiz Technical University, Architecture Faculty Istanbul /Turkiye2Yildiz Technical University, Mechanical Engineering Fac., Istanbul /Turkiye,Corresponding Author, gzorer@hotmail. com Abstract In this study the experimental results of a solar energy collector which is installed to a south classroom window of a school in Istanbul are presented. The collector unit had been […]

Update on European Standards for Thermal Solar Systems. and Components and on Solar Keymark Certification

H. Drtick*, H. Mtiller-Steinhagen University of Stuttgart, Institute for Thermodynamics and Thermal Engineering (ITW) Pfaffenwaldring 6, 70550 Stuttgart, Germany Tel.: +49 711 / 685-63553, Fax: +49 711 / 685-63503 Corresponding Author, email: drueck@itw. uni-stuttgart. de Abstract In the years 2000 and 2001 the first edition of the European standards for solar thermal systems and components […]

Automatic Control System

The whole automation system is mainly divided into two parts: one part is the hardware equipments consisted of all kinds of devices used in the testing system; the other part is the software program based on Labview language. I/O device is used to connect hardware with software. Through the automation system the test system need […]

Direct flow ETC

4. Conclusion Side-by-side tests of seven differently designed evacuated tubular collectors were carried out in an outdoor test facility. The observations from the measurements show that the direct flow ETC and the all-glass ETC have relatively high thermal performance m2 transparent area. The all-glass ETC with solar collector fluid in the tubes and the double-glass […]

Material selection and exposure

After a market analysis, which included all major distributors, a selection of 58 collector glazing types were chosen in the beginning of this long-term investigation (1984). An overview of tested samples is given in Table 1. These glazing types cover a variety of different material and plate types. Although the selection was made in 1984, […]

Measured sequences used for validation purposes

The comparison of experimental and calculated instantaneous power results, obtained after the different approaches presented in the previous section, is based on instantaneous efficiency measurements for a CPC collector (C = 1.72), as well as on their corresponding steady-state and dynamic efficiency curve parameters. The measurements were made at the Institute for Thermodynamics and Thermal […]