Open AccessDesign and Evaluation of Polygonal Trough Solar Concentrator
Author(s) -
Yasser Yassin Khudair,
Alaa B. Hasan
Publication year - 2021
Publication title -
mağallaẗ ibn al-haytam li-l-ʻulūm al-ṣirfaẗ wa-al-taṭbīqiyyaẗ/ibn al-haitham journal for pure and applied sciences
Language(s) - English
Resource type - Journals
eISSN - 2521-3407
pISSN - 1609-4042
DOI - 10.30526/34.4.2696
Subject(s) - concentrator , acceptance angle , optics , nonimaging optics , radiation , surface (topology) , solar mirror , parabolic trough , angle of incidence (optics) , materials science , solar energy , geometry , physics , mathematics , engineering , photovoltaic thermal hybrid solar collector , electrical engineering
In this paper, a solar concentrator is designed in the form of a concave half-cylindrical mirror consisting of polygonal reflective surface plates. The plates are arranged to give a hemispherical shape to the design. These surfaces work to receive solar radiation and focusing by reflecting it to the receiver that is placed in front of the reflecting surfaces. The results are compared with a system consisting of a concave reflecting surface of the same dimensions to obtain a good criterion for evaluating the design performance. The results showed a low acceptance angle for the design for all the samples used due to the geometrical design nature. The optical efficiency affected by the angle of incidence greatly by all the samples used, which differ in the concentration ratio, width and location of the receiver.