id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iajs-2696	Khudair, Yasser Yassin; Hasan, Alaa Badr	Design and Evaluation of Polygonal Trough Solar Concentrator	2021	7	.pdf	application/pdf	2226	110	51	Sci. 34(4)2021 14 Figure 1. 3-D layout of polygonal trough solar concentrator that designed by Zemax Figure 2. 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. Keywords: Solar Concentrator, polygonal trough, incidence Angle, Zemax, Concentration ratio 1.Introduction The idea of using solar concentrators is very vital in our time, because of the necessity to use renewable energy sources that are alternative to traditional sources,and reduce the effects of using fossil fuels from pollution and global warming.	cache/iajs-2696.pdf	txt/iajs-2696.txt