Simple Methods to Approximate CPC Shape to Preserve Collection Efficiency
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 exploi...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/863654 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561011008208896 |
|---|---|
| author | David Jafrancesco Elisa Sani Daniela Fontani Luca Mercatelli Paola Sansoni Annalisa Giannini Franco Francini |
| author_facet | David Jafrancesco Elisa Sani Daniela Fontani Luca Mercatelli Paola Sansoni Annalisa Giannini Franco Francini |
| author_sort | David Jafrancesco |
| collection | DOAJ |
| description | 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 system efficiency. 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. |
| format | Article |
| id | doaj-art-46cc3b6ac9bb4b55b05c54e3db2f36bd |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-46cc3b6ac9bb4b55b05c54e3db2f36bd2025-02-03T01:26:08ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/863654863654Simple Methods to Approximate CPC Shape to Preserve Collection EfficiencyDavid Jafrancesco0Elisa Sani1Daniela Fontani2Luca Mercatelli3Paola Sansoni4Annalisa Giannini5Franco Francini6Italian National Institute of Optics, CNR-INO, Largo E. Fermi 6, 50125 Firenze, ItalyItalian National Institute of Optics, CNR-INO, Largo E. Fermi 6, 50125 Firenze, ItalyItalian National Institute of Optics, CNR-INO, Largo E. Fermi 6, 50125 Firenze, ItalyItalian National Institute of Optics, CNR-INO, Largo E. Fermi 6, 50125 Firenze, ItalyItalian National Institute of Optics, CNR-INO, Largo E. Fermi 6, 50125 Firenze, ItalyItalian National Institute of Optics, CNR-INO, Largo E. Fermi 6, 50125 Firenze, ItalyItalian National Institute of Optics, CNR-INO, Largo E. Fermi 6, 50125 Firenze, ItalyThe 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 system efficiency. 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.http://dx.doi.org/10.1155/2012/863654 |
| spellingShingle | David Jafrancesco Elisa Sani Daniela Fontani Luca Mercatelli Paola Sansoni Annalisa Giannini Franco Francini Simple Methods to Approximate CPC Shape to Preserve Collection Efficiency International Journal of Photoenergy |
| title | Simple Methods to Approximate CPC Shape to Preserve Collection Efficiency |
| title_full | Simple Methods to Approximate CPC Shape to Preserve Collection Efficiency |
| title_fullStr | Simple Methods to Approximate CPC Shape to Preserve Collection Efficiency |
| title_full_unstemmed | Simple Methods to Approximate CPC Shape to Preserve Collection Efficiency |
| title_short | Simple Methods to Approximate CPC Shape to Preserve Collection Efficiency |
| title_sort | simple methods to approximate cpc shape to preserve collection efficiency |
| url | http://dx.doi.org/10.1155/2012/863654 |
| work_keys_str_mv | AT davidjafrancesco simplemethodstoapproximatecpcshapetopreservecollectionefficiency AT elisasani simplemethodstoapproximatecpcshapetopreservecollectionefficiency AT danielafontani simplemethodstoapproximatecpcshapetopreservecollectionefficiency AT lucamercatelli simplemethodstoapproximatecpcshapetopreservecollectionefficiency AT paolasansoni simplemethodstoapproximatecpcshapetopreservecollectionefficiency AT annalisagiannini simplemethodstoapproximatecpcshapetopreservecollectionefficiency AT francofrancini simplemethodstoapproximatecpcshapetopreservecollectionefficiency |