Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
The dome-shaped Fresnel-Köhler concentrator
Year:2012
Research Areas
  • Engineering
Information
Abstract
Manufacturing tolerances, along with a high concentration ratio, are key issues in order to obtain cheap CPV systems for mass production. Consequently, this manuscript presents a novel tolerant and cost effective concentrator optic: the domed-shaped Fresnel-Köhler, presenting a curved Fresnel lens as Primary Optical Element (POE). This concentrator is based on two previous successful CPV designs: the FK concentrator, based on a flat Fresnel lens, and the dome-shaped Fresnel lens system developed by Daido Steel, resulting on a superior concentrator. The manuscript shows outstanding simulation results for geometrical concentration factor of Cg? = ?1,230x: high tolerance and high optical efficiency, achieving acceptance angles of 1.18° (dealing to a CAP?=0.72) and efficiencies over 85% (without any anti-reflective coating). Moreover, Köhler integration provides good irradiance uniformity on the cell surface without increasing system complexity by means of any extra element. 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
8th International Conference on Concentrating Photovoltaic Systems CPV-8
960
Place
Toledo (España)
Reviewers
Si
ISBN/ISSN
978-0-7354-1086-2
10.1063/1.4753836
Start Date
16/04/2012
End Date
18/04/2012
From page
69
To page
72
AIP Conf Proc 1477, 69 (2012)
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: K. 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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