Memorias de investigación
Artículos en revistas:
Experimental characterization of Fresnel-Köhler concentrators
Año:2012
Áreas de investigación
  • Ingenierías
Datos
Descripción
Most cost-effective concentrated photovoltaics (CPV) systems are based on an optical train comprising two stages, the first being a Fresnel lens. Among them, the Fresnel-Köhler (FK) concentrator stands out owing to both performance and practical reasons. We describe the experimental measurements procedure for FK concentrator modules. This procedure includes three main types of measurements: electrical efficiency, acceptance angle, and irradiance uniformity at the solar cell plane. We have collected here the performance features of two different FK prototypes (ranging different f-numbers, concentration ratios, and cell sizes). The electrical efficiencies measured in both prototypes are high and fit well with the models, achieving values up to 32.7% (temperature corrected, and with no antireflective coating on SOE or POE surfaces) in the best case. The measured angular transmission curves show large acceptance angles, again perfectly matching the expected values [measured concentration acceptance product (CAP) values over 0.56]. The irradiance pattern on the cell (obtained with a digital camera) shows an almost perfectly uniform distribution, as predicted by raytrace simulations. All these excellent on-sun results confirm the FK concentrator as a potentially cost-effective solution for the CPV market.
Internacional
Si
JCR del ISI
Si
Título de la revista
Journal of Photonics for Energy
ISSN
0091-3286
Factor de impacto JCR
Información de impacto
Volumen
2
DOI
10.1117/1.JPE.2.021806
Número de revista
1 (021806)
Desde la página
021806-1
Hasta la página
021806-12
Mes
OCTUBRE
Ranking
No aparece todavía en la WOK de JCR pq entró en 2012.
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Departamento: Electrónica Física