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- W1985190473 abstract "The optical efficiency of parabolic trough collectors depends on their geometric agreement with the parabolic profile design which, in turn, largely depends on the structure supporting the collector. A method for assessing the degree of agreement between the measured geometry and the theoretical design surface is described, which takes into account uncertainty in the point coordinates and is based on kernel smoothing and bootstrapping methods. The technique was applied to a 12 m long parabolic trough collector module with a newly designed supporting structure. The analysis revealed that there were significant differences between the estimated and theoretical surfaces in several parts of the collector. Le rendement optique d'un capteur solaire parabolique dépend du degré d'ajustement de sa géométrie avec la conception du profil parabolique, qui à son tour dépend en grande partie de la structure qui supporte le capteur. Cet article présente une méthode pour évaluer le degré d'adéquation entre la mesure et la théorie de la conception de surface géométrique, prenant en compte l'incertitude des coordonnées des points et basée sur des méthodes de lissage du noyau et d'amorçage. Ces techniques ont été appliquées à un capteur solaire de 12 m de long avec une structure de soutien de conception nouvelle. Notre analyse a permis de mettre en évidence des différences significatives entre les surfaces théoriques et estimées dans plusieurs zones du capteur. Der optische Wirkungsgrad von Parabolrinnenkollektoren hängt von der geometrischen Übereinstimmung mit dem parabolischen Profil aus dem Design ab, welches wiederum von der Stützkonstruktion des Kollektors abhängt. Es wird eine Methode vorgestellt, die den Grad der Übereinstimmung der gemessenen Oberfläche mit der Geometrie der theoretischen Oberfläche aus dem Design ermittelt. Die Methode berücksichtigt die Unsicherheit der Punktkoordinaten und basiert auf Glättungs- und Bootstrapping Methoden. Der Ansatz wurde an einem 12 m langen Parabolrinnenkollektor mit neuartiger Stützkonstruktion erprobt. Die Analyse ergab, dass es in mehreren Bereichen des Kollektors signifikante Unterschiede zwischen der geschätzten und der theoretischen Oberfläche gibt. La eficiencia óptica de un colector solar parabólico depende del grado de ajuste de su geometría con el perfil parabólico de diseño, que a su vez depende en gran medida de la estructura que soporta el colector. En este trabajo se muestra un método para valorar el grado de ajuste entre la geometría medida y la superficie teórica de diseño que tiene en cuenta la incertidumbre en las coordenadas de los puntos y se basa en métodos de suavizado de núcleo y bootstrap. Estas técnicas se aplicaron a un PTC de 12 m de largo con una estructura de soporte de nuevo diseño. Nuestro análisis reveló que el colector mostraba diferencias significativas entre las superficies teórica y estimada en varias zonas." @default.
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- W1985190473 date "2013-06-01" @default.
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- W1985190473 title "Validating The Supporting Structure of A Parabolic Solar Collector Using Close Range Photogrammetry" @default.
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- W1985190473 doi "https://doi.org/10.1111/phor.12024" @default.
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