In order to improve the durability of receivers used in solar concentrating systems, it is necessary to minimize thermal stress during their operation. A possible way to do that is to design receivers in which the radiative flux density is homogeneous at the surface. For this reason, a detailed 3D study has been carried out for the distribution of concentrated solar radiation in the focal zone of a parabolic concentrator. A computer program has been developed to obtain isosurfaces of solar irradiance and achieve a homogeneous radiation flux on the receiver surface. The algorithm of the program proposes a methodology to obtain flux isosurfaces for a great variety of optical configurations. The effect of the optical errors on the mirror surface has been studied, as well as the effect of the shape of the mirror, e.g., round, square, or faceted. The numerical calculations were made using the convolution ray tracing technique.
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February 2008
Technical Briefs
Three-Dimensional Analysis of a Concentrated Solar Flux
David Riveros-Rosas,
David Riveros-Rosas
Centro de Investigación en Energía,
Universidad Nacional Autónoma de México
, Avenida Xochicalco S/N, Temixco, CP 62580 Morelos, México
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Marcelino Sánchez-González,
Marcelino Sánchez-González
Solucar R&D
, Buhaira 2, 41018 Sevilla, Spain
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Claudio A. Estrada
Claudio A. Estrada
Centro de Investigación en Energía,
e-mail: cestrada@cie.unam.mx
Universidad Nacional Autónoma de México
, Avenida Xochicalco S/N, Temixco, CP 62580 Morelos, México
Search for other works by this author on:
David Riveros-Rosas
Centro de Investigación en Energía,
Universidad Nacional Autónoma de México
, Avenida Xochicalco S/N, Temixco, CP 62580 Morelos, México
Marcelino Sánchez-González
Solucar R&D
, Buhaira 2, 41018 Sevilla, Spain
Claudio A. Estrada
Centro de Investigación en Energía,
Universidad Nacional Autónoma de México
, Avenida Xochicalco S/N, Temixco, CP 62580 Morelos, Méxicoe-mail: cestrada@cie.unam.mx
J. Sol. Energy Eng. Feb 2008, 130(1): 014503 (4 pages)
Published Online: January 7, 2008
Article history
Received:
November 15, 2006
Revised:
June 9, 2007
Published:
January 7, 2008
Citation
Riveros-Rosas, D., Sánchez-González, M., and Estrada, C. A. (January 7, 2008). "Three-Dimensional Analysis of a Concentrated Solar Flux." ASME. J. Sol. Energy Eng. February 2008; 130(1): 014503. https://doi.org/10.1115/1.2807212
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