Quality test to the parabolic trough solar collector surface using structured light

Quality test to the parabolic trough solar collector surface using structured light

Currently, there is considerable research on the study of solar collection systems to take full advantage of this resource. Several geometries, such as point-like, linear and non-focus, have been used for the concentration of solar radiation. Solar radiation concentrated by this system is sensitive...

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Main Authors: Moreno-Oliva, Víctor Iván, Román-Hernández, Edwin, Rafael-Esesarte, Sergio Arturo, García-Hernández, Rommel
Format: Online
Language:spa
Published: Universidad Autónoma de Tamaulipas 2014
Online Access:https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/296
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id oai:ojs.pkp.sfu.ca:article-296
record_format ojs
institution CIENCIA UAT
collection OJS
language spa
format Online
author Moreno-Oliva, Víctor Iván
Román-Hernández, Edwin
Rafael-Esesarte, Sergio Arturo
García-Hernández, Rommel
spellingShingle Moreno-Oliva, Víctor Iván
Román-Hernández, Edwin
Rafael-Esesarte, Sergio Arturo
García-Hernández, Rommel
Quality test to the parabolic trough solar collector surface using structured light
author_facet Moreno-Oliva, Víctor Iván
Román-Hernández, Edwin
Rafael-Esesarte, Sergio Arturo
García-Hernández, Rommel
author_sort Moreno-Oliva, Víctor Iván
title Quality test to the parabolic trough solar collector surface using structured light
title_short Quality test to the parabolic trough solar collector surface using structured light
title_full Quality test to the parabolic trough solar collector surface using structured light
title_fullStr Quality test to the parabolic trough solar collector surface using structured light
title_full_unstemmed Quality test to the parabolic trough solar collector surface using structured light
title_sort quality test to the parabolic trough solar collector surface using structured light
description Currently, there is considerable research on the study of solar collection systems to take full advantage of this resource. Several geometries, such as point-like, linear and non-focus, have been used for the concentration of solar radiation. Solar radiation concentrated by this system is sensitive to deformations on the reflecting surface. Therefore, several techniques of optical testing for quality control of the reflecting surface have been developed. In this work we developed an optical technique based on a laser triangulation method that used the projection of a laser beam onto the surface to be evaluated, a camera placed perpendicular to a reference plane, and the object under study. The technique associates lateral displacements of the laser beam, observed by the camera, with changes in height of the object relative to the reference plane, using a mathematical model. To obtain a digital reconstruction of the whole object, we scanned it using the projected beam. Through this method we evaluated the reflecting surface of a parabolic trough solar concentrator prototype with a 1 250 mm opening and 914 mm trough. As result, we obtained the real shape of the collector surface, which allowed calculating its real focus. Furthermore, the range of differences between the real and the best fit surface was approximately ± 10 mm. From this results, we concluded that the technique can be applied to improve the manufacturing processes of solar concentrating systems. The technique can be adapted to evaluate small objects with high sensitivity in the Z axis.
publisher Universidad Autónoma de Tamaulipas
publishDate 2014
url https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/296
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spelling oai:ojs.pkp.sfu.ca:article-2962015-09-30T12:09:00Z Quality test to the parabolic trough solar collector surface using structured light Prueba de calidad en la superficie reflectora de un concentrador solar de canal parabólico con el uso de luz estructurada Moreno-Oliva, Víctor Iván Román-Hernández, Edwin Rafael-Esesarte, Sergio Arturo García-Hernández, Rommel Solar collectors optical testing geometrical optics. Concentradores solares pruebas ópticas óptica geométrica. Currently, there is considerable research on the study of solar collection systems to take full advantage of this resource. Several geometries, such as point-like, linear and non-focus, have been used for the concentration of solar radiation. Solar radiation concentrated by this system is sensitive to deformations on the reflecting surface. Therefore, several techniques of optical testing for quality control of the reflecting surface have been developed. In this work we developed an optical technique based on a laser triangulation method that used the projection of a laser beam onto the surface to be evaluated, a camera placed perpendicular to a reference plane, and the object under study. The technique associates lateral displacements of the laser beam, observed by the camera, with changes in height of the object relative to the reference plane, using a mathematical model. To obtain a digital reconstruction of the whole object, we scanned it using the projected beam. Through this method we evaluated the reflecting surface of a parabolic trough solar concentrator prototype with a 1 250 mm opening and 914 mm trough. As result, we obtained the real shape of the collector surface, which allowed calculating its real focus. Furthermore, the range of differences between the real and the best fit surface was approximately ± 10 mm. From this results, we concluded that the technique can be applied to improve the manufacturing processes of solar concentrating systems. The technique can be adapted to evaluate small objects with high sensitivity in the Z axis. Actualmente, existe un gran interés en el estudio de los sistemas de concentración de radiación solar para el aprovechamiento de este recurso. Diversas geometrías, puntuales, lineales y de no enfoque, han sido usadas para la concentración de radiación solar. La cantidad de energía recolectada por estos sistemas es sensible a deformaciones en la superficie reflectora, por lo que se ha vuelto imprescindible el desarrollo de técnicas para el control de calidad. En este trabajo se desarrolló una técnica óptica basada en el método de triangulación láser, para la cual se utilizó la proyección de una línea de luz láser sobre la superficie a evaluar, una cámara perpendicular a un plano de referencia y el objeto de estudio. La técnica consiste en asociar los desplazamientos laterales de la línea láser, observados por la cámara, con los cambios de altura del objeto respecto al plano de referencia, a partir de un modelo matemático. Para conseguir una reconstrucción digital del objeto completo se realizó un barrido o escaneo de la línea proyectada sobre el objeto de prueba. Usando este método, se evaluó la superficie reflectora de un prototipo de concentrador solar de canal parabólico de 1 250 mm de longitud en su apertura y 914lmm de longitud de canal. Como resultado se obtuvo la forma real de la superficie del colector, lo que permitió calcular el foco real del mismo. Además, el rango de diferencias entre la superficie real y la superficie que mejor se ajusta fue del orden de ± 10omm. A partir de los resultados, se concluye que esta técnica puede aplicarse a la mejora en los procesos de manufactura de sistemas de concentración solar. La técnica puede ser adaptable para la evaluación de pequeños objetos, obteniéndose alta sensibilidad en el eje Z. Universidad Autónoma de Tamaulipas 2014-07-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/296 10.29059/cienciauat.v8i2.296 CienciaUAT; Vol. 8 No. 2: January-June 2014; 68-72 CienciaUAT; Vol. 8 No. 2: Enero-Junio 2014; 68-72 2007-7858 2007-7521 spa https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/296/159

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