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Buljan, Marina, Benítez Giménez, Pablo, Mohedano del Pozo, Raúl, Miñano Dominguez, Juan Carlos, Sun, Y., Falicoff, W., Vilaplana, J., Chaves, Julio, Biot Marí, Guillermo and López, J. (2011). Free-form Fresnel RXI-RR Köhler design for high-concentration photovoltaics with spectrum-splitting. In: "Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII", 21/08/2011 - 22/08/2011, San Diego, EEUU.
Title: | Free-form Fresnel RXI-RR Köhler design for high-concentration photovoltaics with spectrum-splitting |
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Author/s: |
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Item Type: | Presentation at Congress or Conference (Article) |
Event Title: | Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII |
Event Dates: | 21/08/2011 - 22/08/2011 |
Event Location: | San Diego, EEUU |
Title of Book: | Proceedings of Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII |
Date: | 2011 |
Volume: | 8124 |
Subjects: | |
Faculty: | Centro de Domótica Integral (CeDInt) (UPM) |
Department: | Otro |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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Development of a novel HCPV nonimaging concentrator with high concentration (>500x) and built-in spectrum splitting concept is presented. It uses the combination of a commercial concentration GaInP/GaInAs/Ge 3J cell and a concentration Back-Point-Contact (BPC) silicon cell for efficient spectral utilization, and external confinement techniques for recovering the 3J cell's reflection. The primary optical element (POE) is a flat Fresnel lens and the secondary optical element (SOE) is a free-form RXI-type concentrator with a band-pass filter embedded in it - Both the POE and SOE performing Köhler integration to produce light homogenization on the receiver. The band-pass filter transmits the IR photons in the 900-1200 nm band to the silicon cell. A design target of an "equivalent" cell efficiency ~46% is predicted using commercial 39% 3J and 26% Si cells. A projected CPV module efficiency of greater than 38% is achievable at a concentration level larger than 500X with a wide acceptance angle of ±1°. A first proof-of concept receiver prototype has been manufactured using a simpler optical architecture (with a lower concentration, ~100x and lower simulated added efficiency), and experimental measurements have shown up to 39.8% 4J receiver efficiency using a 3J cell with a peak efficiency of 36.9%.
Item ID: | 12863 |
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DC Identifier: | https://oa.upm.es/12863/ |
OAI Identifier: | oai:oa.upm.es:12863 |
Official URL: | http://proceedings.spiedigitallibrary.org/proceedi... |
Deposited by: | Memoria Investigacion |
Deposited on: | 13 Nov 2012 09:48 |
Last Modified: | 04 Mar 2023 10:23 |