Title :
End-Effect of Linear Fresnel Collectors
Author :
Pu Shaoxuan ; Xia Chaofeng
Author_Institution :
Coll. of Water Conservancy & Civil Eng., China Agric. Univ., Beijing, China
Abstract :
Linear Fresnel collectors usually have wider apertures and higher receivers in comparison with parabolic trough collectors. The end-effect of the receiver is very important, especially in small-scale linear Fresnel collector fields. The equations for estimating the end-effect for the north-south and east-west linear Fresnel collectors were derived from analyzing the angles between incident sunlight and the tacking axes of the mirrors. The end-effect varies with mirror focal distances for the north-south collector field at solar noon on monthly average days and with time of the day for the east-west collector field at latitude 25°01´N are discussed.
Keywords :
solar absorber-convertors; sunlight; east-west linear Fresnel collectors; incident sunlight; north-south linear Fresnel collectors; parabolic trough collectors; small-scale linear Fresnel collector fields; Equations; Mathematical model; Mirrors; Receivers; Solar energy; Sun; Vectors;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6253-7
DOI :
10.1109/APPEEC.2011.5748793