Observatorio de I+D+i UPM

Descripción
In this paper, we present the Hybrid L-CPV concept, which mixes conventional CPV technology with illumination using low-cost fiber optics as light distributor. This approach may offer a significant increase in the value of a CPV system for a minimal cost increase. Since illumination from sunlight with fibers does not require energy conversion, the losses are limited to those within the fibers, allowing for efficient lighting using just small area of the CPV system. At the same time the need of concentration and tracking required by a fiber-based illumination system is fully covered by the infrastructure of the CPV system. In this work, we present a theoretical study of the losses in optical fibers in order to understand and characterize them, as well an experimental confirmation of these results with low cost PMMA fibers. It is found that the highest the f-number of the concentrating lens, the less losses but this value is also limited by the compactness of the receptor, the f-number of cell lens and the optical efficiency of the lens. PMMA softening at 85 ºC limits maximum concentration to 100X which simultaneously avoids using any secondary optical element for the lighting portion of the system.
Internacional	Si
Nombre congreso	26th European Photovoltaic Solar Energy Conference and Exhibition
Tipo de participación	960
Lugar del congreso	Hamburgo, Alemania
Revisores	Si
ISBN o ISSN	3-936338-27-2
DOI	10.4229/26thEUPVSEC2011-1BO.11.5
Fecha inicio congreso	05/09/2011
Fecha fin congreso	09/09/2011
Desde la página	148
Hasta la página	152
Título de las actas	Proceedings of 26th European Photovoltaic Solar Energy Conference and Exhibition

Esta actividad pertenece a memorias de investigación

• Autor: Ruben Nuñez Judez (UPM)
• Autor: Ignacio Anton Hernandez (UPM)
• Autor: Gabriel Sala Pano (UPM)

• Creador: Grupo de Investigación: Integración de Sistemas e Instrumentos (ISI)
• Centro o Instituto I+D+i: Instituto de Energía Solar
• Departamento: Sistemas Electrónicos y de Control
• Departamento: Electrónica Física