Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Photovoltaic performance of the dome-shaped Fresnel-Köhler concentrator
Year:2012
Research Areas
  • Engineering
Information
Abstract
In order to have a cost-effective CPV system, two key issues must be ensured: high concentration factor and high tolerance. The novel concentrator we are presenting, the dome-shaped Fresnel-Köhler, can widely fulfill these two and other essential issues in a CPV module. This concentrator is based on two previous successful CPV designs: the FK concentrator with a flat Fresnel lens and the dome-shaped Fresnel lens system developed by Daido Steel, resulting on a superior concentrator. The concentrator has shown outstanding simulation results, achieving an effective concentration-acceptance product (CAP) value of 0.72, and an optical efficiency of 85% on-axis (no anti-reflective coating has been used). Moreover, Köhler integration provides good irradiance uniformity on the cell surface and low spectral aberration of this irradiance. This ensures an optimal performance of the solar cell, maximizing its efficiency. Besides, the dome-shaped FK shows optimal results for very compact designs, especially in the f/0.7-1.0 range. The dome-shaped Fresnel-Köhler concentrator, natural and enhanced evolution of the flat FK concentrator, is a cost-effective CPV optical design, mainly due to its high tolerances. Daido Steel advanced technique for demolding injected plastic pieces will allow for easy manufacture of the dome-shaped POE of DFK concentrator.
International
Si
Congress
High and Low Concentrator Systems for Solar Electric Applications VII
960
Place
San Diego, CA, USA
Reviewers
Si
ISBN/ISSN
9780819491855
10.1117/12.929698
Start Date
12/08/2012
End Date
16/08/2012
From page
84680
To page
84687
Proceedings of SPIE Volume 8468
Participants
  • Autor: Pablo Zamora Herranz (UPM)
  • Autor: Pablo Benitez Gimenez (UPM)
  • Autor: Li Yang . (UPM)
  • Autor: Juan Carlos Miñano Dominguez (UPM)
  • Autor: Joao Mendes Lopes (UPM)
  • Autor: Kenji Araki
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
  • Departamento: Electrónica Física
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