Evaluation of Surface Slope Irregularity in Linear Parabolic Solar Collectors
The paper describes a methodology, very simple in its application, for measuring surface irregularities of linear parabolic collectors. This technique was principally developed to be applied in cases where it is difficult to use cumbersome instruments and to facilitate logistic management. The instr...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/921780 |
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| _version_ | 1832564384108380160 |
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| author | F. Francini D. Fontani P. Sansoni L. Mercatelli D. Jafrancesco E. Sani |
| author_facet | F. Francini D. Fontani P. Sansoni L. Mercatelli D. Jafrancesco E. Sani |
| author_sort | F. Francini |
| collection | DOAJ |
| description | The paper describes a methodology, very simple in its application, for measuring surface irregularities of linear parabolic collectors. This technique was principally developed to be applied in cases where it is difficult to use cumbersome instruments and to facilitate logistic management. The instruments to be employed are a digital camera and a grating. If the reflector surface is defective, the image of the grating, reflected on the solar collector, appears distorted. Analyzing the reflected image, we can obtain the local slope of the defective surface. These profilometric tests are useful to identify and monitor the mirror portions under mechanical stress and to estimate the losses caused by the light rays deflected outside the absorber. |
| format | Article |
| id | doaj-art-1339b34ec8494091bd9b23432f79e98b |
| 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-1339b34ec8494091bd9b23432f79e98b2025-02-03T01:11:11ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/921780921780Evaluation of Surface Slope Irregularity in Linear Parabolic Solar CollectorsF. Francini0D. Fontani1P. Sansoni2L. Mercatelli3D. Jafrancesco4E. Sani5National Institute of Optics (INO), CNR, Largo E. Fermi, 6, 50125 Firenze, ItalyNational Institute of Optics (INO), CNR, Largo E. Fermi, 6, 50125 Firenze, ItalyNational Institute of Optics (INO), CNR, Largo E. Fermi, 6, 50125 Firenze, ItalyNational Institute of Optics (INO), CNR, Largo E. Fermi, 6, 50125 Firenze, ItalyNational Institute of Optics (INO), CNR, Largo E. Fermi, 6, 50125 Firenze, ItalyNational Institute of Optics (INO), CNR, Largo E. Fermi, 6, 50125 Firenze, ItalyThe paper describes a methodology, very simple in its application, for measuring surface irregularities of linear parabolic collectors. This technique was principally developed to be applied in cases where it is difficult to use cumbersome instruments and to facilitate logistic management. The instruments to be employed are a digital camera and a grating. If the reflector surface is defective, the image of the grating, reflected on the solar collector, appears distorted. Analyzing the reflected image, we can obtain the local slope of the defective surface. These profilometric tests are useful to identify and monitor the mirror portions under mechanical stress and to estimate the losses caused by the light rays deflected outside the absorber.http://dx.doi.org/10.1155/2012/921780 |
| spellingShingle | F. Francini D. Fontani P. Sansoni L. Mercatelli D. Jafrancesco E. Sani Evaluation of Surface Slope Irregularity in Linear Parabolic Solar Collectors International Journal of Photoenergy |
| title | Evaluation of Surface Slope Irregularity in Linear Parabolic Solar Collectors |
| title_full | Evaluation of Surface Slope Irregularity in Linear Parabolic Solar Collectors |
| title_fullStr | Evaluation of Surface Slope Irregularity in Linear Parabolic Solar Collectors |
| title_full_unstemmed | Evaluation of Surface Slope Irregularity in Linear Parabolic Solar Collectors |
| title_short | Evaluation of Surface Slope Irregularity in Linear Parabolic Solar Collectors |
| title_sort | evaluation of surface slope irregularity in linear parabolic solar collectors |
| url | http://dx.doi.org/10.1155/2012/921780 |
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