Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/12013
Title: Comparison of optical performances of sea-shell trough solar concentrators
Authors: Bojic, Milorad
Marjanovic, Nenad
Miletic, Ivan
Bojić, Ljubiša
Issue Date: 2015
Abstract: © 2014 Elsevier B.V. All rights reserved. An investigated sea-shell solar concentrator is non-imaging, asymmetric, stationary and has long trough. This concentrator consists of a parabolic, cylindrical trough reflector, a flat double-sided flat absorber (for heat production), and a flat aperture. Three concentrators of such design were investigated by specular solar ray tracing with the software CATIA. They differ in the location of the absorber inside the concentrator. The optical efficiency of direct solar ray transfer inside these concentrators was investigated for different solar ray altitudes at the concentrator aperture for the concentrators installed in Kragujevac, Serbia. For the solar ray altitudes between 50° and 69.75°, the highest optical efficiency was obtained at the solar concentrator where the absorber contains the focus line of the parabola reflector. For the solar ray altitudes between 21° and 50°, the highest optical efficiency was obtained by the solar concentrator where the absorber contains the vertex line of the parabola reflector.
URI: https://scidar.kg.ac.rs/handle/123456789/12013
Type: article
DOI: 10.1016/j.enbuild.2014.08.037
ISSN: 0378-7788
SCOPUS: 2-s2.0-84930272701
Appears in Collections:Faculty of Engineering, Kragujevac

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