Performance analysis of non-imaging Fresnel lens as a primary stage for CPV units

International Conference on Renewable Energies and Energy Efficiency 2017

Himer, S. El^1 ; Ahaitouf, A.^1 ; El-Yahyaoui, S.^1 ; Mechaqrane, A.^1

Laboratory of Renewable Energies and Intelligent Systems, Electrical Engineering Department, Faculty of Science and Technology, Sidi Mohamed Ben Abdellah University, Fes, PO. Box 2202, Fez, Morocco^1

关键词: Acceptance angle;    Concentrating photovoltaic;    Entrance apertures;    Focal lengths;    Fresnel lens;    It focus;    Non-imaging;    Performance analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/161/1/012029/pdf
DOI  :  10.1088/1755-1315/161/1/012029

来源: IOP

【 摘 要 】

Fresnel lens is widely used in concentrating photovoltaic (CPV) systems as a primary optical element. It focuses sunlight on small solar cells or on the entrance apertures of secondary optical elements. In this work, we present a performance analysis of a non-imaging Fresnel lens as a primary optical element for different values of focal length. Results show, among others, the necessary use a secondary stage of concentration in order to achieve good performances in terms of the uniformity of the flux and a large acceptance angle compared with those of a Fresnel lens used alone.