Indoor experimental assessment of the efficiency and irradiance spot of the achromatic doublet on glass (ADG) fresnel lens for concentrating photovoltaics

Vallerotto, Guido and Victoria Pérez, Marta and Askins, Stephen and Antón Hernandez, Ignacio and Sala Pano, Gabriel and Herrero Martin, Rebeca and Domínguez Domínguez, César (2017). Indoor experimental assessment of the efficiency and irradiance spot of the achromatic doublet on glass (ADG) fresnel lens for concentrating photovoltaics. "Journal of Visualized Experiments", v. e56269 (n. 128); pp. 1-9. ISSN 1940-087X. https://doi.org/10.3791/56269.

Description

Title: Indoor experimental assessment of the efficiency and irradiance spot of the achromatic doublet on glass (ADG) fresnel lens for concentrating photovoltaics
Author/s:
  • Vallerotto, Guido
  • Victoria Pérez, Marta
  • Askins, Stephen
  • Antón Hernandez, Ignacio
  • Sala Pano, Gabriel
  • Herrero Martin, Rebeca
  • Domínguez Domínguez, César
Item Type: Article
Título de Revista/Publicación: Journal of Visualized Experiments
Date: 2017
ISSN: 1940-087X
Volume: e56269
Subjects:
Freetext Keywords: Engineering; Issue 128; Solar energy; concentrators; aberration compensation; Fresnel lens; optical design; optical characterization
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física, Ingeniería Eléctrica y Física Aplicada
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainENE2013-45229-PAcromalensUnspecifiedUnspecified
Horizon 2020640873CPVMatchFRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.VConcentrating Photovoltaic modules using advanced technologies and cells for highest efficiencies

More information

Item ID: 52527
DC Identifier: https://oa.upm.es/52527/
OAI Identifier: oai:oa.upm.es:52527
DOI: 10.3791/56269
Official URL: URL: https://www.jove.com/video/56269
Deposited by: Memoria Investigacion
Deposited on: 24 Apr 2021 09:38
Last Modified: 24 Apr 2021 09:38
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