Simple methods to approximate CPC shape to preserve collection efficiency (Articolo in rivista)

Type
Label
  • Simple methods to approximate CPC shape to preserve collection efficiency (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1155/2012/863654 (literal)
Alternative label
  • Jafrancesco David ; Sani Elisa ; Fontani Daniela ; Mercatelli Luca ; Sansoni Paola ; Giannini Annalisa ; Francini Franco (2012)
    Simple methods to approximate CPC shape to preserve collection efficiency
    in International Journal of Photoenergy (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Jafrancesco David ; Sani Elisa ; Fontani Daniela ; Mercatelli Luca ; Sansoni Paola ; Giannini Annalisa ; Francini Franco (literal)
Pagina inizio
  • 863654 (literal)
Pagina fine
  • 863654 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Note
  • Scopus (literal)
  • ISI Web of Science (WOS) (literal)
  • Google Scholar (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Italian National Institute of Optics, CNR-INO, Largo E. Fermi 6, 50125 Firenze, Italy (literal)
Titolo
  • Simple methods to approximate CPC shape to preserve collection efficiency (literal)
Abstract
  • The compound parabolic concentrator (CPC) is the most efficient reflective geometry to collect light to an exit port. Anyway, to allow its actual use in solar plants or photovoltaic concentration systems, a tradeoff between system efficiency and cost reduction, the two key issues for sunlight exploitation, must be found. In this work, we analyze various methods to model an approximated CPC aimed to be simpler and more cost-effective than the ideal one, as well as to preserve the systemefficiency. The manufacturing easiness arises from the use of truncated conic surfaces only, which can be realized by cheap machining techniques.We compare different configurations on the basis of their collection efficiency, evaluated by means of nonsequential ray-tracing software. Moreover, due to the fact that some configurations are beam dependent and for a closer approximation of a real case, the input beam is simulated as nonsymmetric, with a nonconstant irradiance on the CPC internal surface. (literal)
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