Memorias de investigación
Artículos en revistas:
Indoor experimental assessment of the efficiency and irradiance spot of the achromatic doublet on glass (ADG) fresnel lens for concentrating photovoltaics
Año:2017
Áreas de investigación
  • Dispositivos electrónicos,
  • Tecnología de dispositivos para ingeniería eléctrica y electrónica,
  • Generación fotovoltaica
Datos
Descripción
We present a method to characterize achromatic Fresnel lenses for photovoltaic applications. The achromatic doublet on glass (ADG) Fresnel lens is composed of two materials, a plastic and an elastomer, whose dispersion characteristics (refractive index variation with wavelength) are different. We first designed the lens geometry and then used ray-tracing simulation, based on the Monte Carlo method, to analyze its performance from the point of view of both optical efficiency and the maximum attainable concentration. Afterwards, ADG Fresnel lens prototypes were manufactured using a simple and reliable method. It consists of a prior injection of plastic parts and a consecutive lamination, together with the elastomer and a glass substrate to fabricate the parquet of ADG Fresnel lenses. The accuracy of the manufactured lens profile is examined using an optical microscope while its optical performance is evaluated using a solar simulator for concentrator photovoltaic systems. The simulator is composed of a xenon flash lamp whose emitted light is reflected by a parabolic mirror. The collimated light has a spectral distribution and an angular aperture similar to the real Sun. We were able to assess the optical performance of the ADG Fresnel lenses by taking photographs of the irradiance spot cast by the lens using a charge-coupled device (CCD) camera and measuring the photocurrent generated by several types of multi junction (MJ) solar cells, which have been previously characterized at a solar simulator for concentrator solar cells. These measurements have demonstrated the achromatic behavior of ADG Fresnel lenses and, as a consequence, the suitability of the modelling and manufacturing methods.
Internacional
Si
JCR del ISI
Si
Título de la revista
Jove-Journal of Visualized Experiments
ISSN
1940-087X
Factor de impacto JCR
1,232
Información de impacto
Volumen
DOI
10.3791/56269
Número de revista
128
Desde la página
e56269-1
Hasta la página
e56269-9
Mes
SIN MES
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física, Ingeniería Eléctrica y Física Aplicada
  • Departamento: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
  • Departamento: Ingeniería Telemática y Electrónica