- Politeknik Dergisi
- Vol: 26 Issue: 2
- Analysis of the Effect of Transparent Covers on Receiver of Cylindrical Parabolic Solar Collectors
Analysis of the Effect of Transparent Covers on Receiver of Cylindrical Parabolic Solar Collectors
Authors : Apdulmutalip ŞAHİNASLAN, Mehmet BURUNTEKİN, Mesut ÖZTOP
Pages : 495-502
Doi:10.2339/politeknik.955919
View : 257 | Download : 812
Publication Date : 2023-07-05
Article Type : Research Article
Abstract :Parabolic solar collectors with central receiving systems are preferred due to their high efficiency despite their high initial investment and operating costs. In this study, the effect of two glass covers on tubular collector will be investigated, aiming enhancement of cylindrical parabolic solar collectors’ efficiency. By using glass cover it is aimed to decrease losses and increase efficiency. In order to investigate the changes of losses and instantaneous efficiency, a model was constructed considering all parameters of the structure, optical losses, material properties and outdoor climatic conditions. Results of calculations show that the two-cover system is not more efficient than the single cover system at low fluid temperatures between 0 and 500 K and the efficiency of the two-cover system is increased at medium fluid temperatures between 500 and 700 K.Keywords : Güneş enerjisi, parabolik güneş kollektörleri, yenilenebilir enerji kaynakları