 Influence of the size of facets on point focus solar concentratorsDavid Riveros-Rosas, Marcelino Sánchez-González, Camilo A. Arancibia-Bulnes and Claudio A. Estrada Renewable Energy, 2011, vol. 36, issue 3, 966-970 Abstract: It is a common practice in the development of point focus solar concentrators to use multiple identical reflecting facets, as a practical and economic alternative for the design and construction of large systems. This kind of systems behaves in a different manner than continuous paraboloidal concentrators. A theoretical study is carried out to understand the effect of the size of facets and of their optical errors in multiple facet point focus solar concentrating systems. For this purpose, a ray tracing program was developed based on the convolution technique, in which the brightness distribution of the sun and the optical errors of the reflecting surfaces are considered. The study shows that both the peak of concentration and the optimal focal distance of the system strongly depend on the size of the facets, and on their optical errors. These results are useful to help concentrator developers to have a better understanding of the relationship between manufacturing design restrictions and final optical behavior. Keywords: Solar concentrator; Faceted concentrator; Optical design; Ray tracing; Radiative flux distribution; Optical error (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:36:y:2011:i:3:p:966-970 DOI: 10.1016/j.renene.2010.08.038 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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