The Dome-Shaped Fresnel-Köhler Concentrator

Zamora Herranz, Pablo, Benítez Giménez, Pablo, Li, Yang, Miñano Dominguez, Juan Carlos, Mendes Lopes, Joao and Araki, Kenji (2012). The Dome-Shaped Fresnel-Köhler Concentrator. In: "8th International Conference On Concentrating Photovoltaic Systems: Cpv-8", 16/04/2012 - 18/04/2012, Toledo (España). pp. 69-72.


Title: The Dome-Shaped Fresnel-Köhler Concentrator
  • Zamora Herranz, Pablo
  • Benítez Giménez, Pablo
  • Li, Yang
  • Miñano Dominguez, Juan Carlos
  • Mendes Lopes, Joao
  • Araki, Kenji
Item Type: Presentation at Congress or Conference (Article)
Event Title: 8th International Conference On Concentrating Photovoltaic Systems: Cpv-8
Event Dates: 16/04/2012 - 18/04/2012
Event Location: Toledo (España)
Title of Book: AIP Conference Proceedings / Volume 1477 / Concentrating Optics And Related Materials
Date: 2012
Faculty: Centro de Domótica Integral (CeDInt) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[thumbnail of INVE_MEM_2012_130480.pdf] PDF - Users in campus UPM only - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (977kB)


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.

More information

Item ID: 19707
DC Identifier:
OAI Identifier:
DOI: 10.1063/1.4753836
Official URL:
Deposited by: Memoria Investigacion
Deposited on: 26 Sep 2013 18:44
Last Modified: 04 Mar 2023 10:19
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM