Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
An end of service life assessment of PMMA lenses from veteran concentrator photovoltaic systems
Año:2017
Áreas de investigación
  • Energía solar,
  • Tecnología de dispositivos para ingeniería eléctrica y electrónica,
  • Generación fotovoltaica
Datos
Descripción
The optical performance of poly(methyl methacrylate) lenses from veteran concentrator photovoltaic modules was examined after the end of their service life. Lenses from the Martin-Marietta and Intersol module designs were examined from the â?Solar Villageâ? site near Riyadh, Saudi Arabia, as well as the Phoenix Sky Harbor airport, followed by the Arizona Public Service Solar Test and Research (APS-STaR) center in Tempe, Arizona. The various lens specimens were deployed for 20, 27, and 22 years, respectively. Optical characterizations included lens efficiency (Solar Simulator instrument), material transmittance and haze (of coupons cut from veteran lenses, then measured again after their faceted back surface was polished, and then measured again after the incident front surface was polished), and direct transmittance (as a function of detector's acceptance angle, using the Very Low Angular Beam Spread (â?VLABSâ?) instrument). Lens efficiency measurements compared the central region to the entire lens, also using hot and cold mirror measurements to diagnose differences in performance. A series of subsequent characterizations was performed because a decrease in performance of greater than 10% was observed for some of the veteran lenses. The optimal focal distance of the lenses was quantified using the Solar Simulator, and then correlated to lens curvature using a recently developed measurement technique. Surface roughness was examined using atomic force microscopy and scanning electron microscopy. Facet geometry (tip and valley radius) was quantified on cross-sectioned specimens. Molecular weight was compared between the incident and faceted surfaces of the lenses.
Internacional
Si
JCR del ISI
Si
Título de la revista
Solar Energy Materials And Solar Cells
ISSN
0927-0248
Factor de impacto JCR
4,784
Información de impacto
Volumen
167
DOI
10.1016/j.solmat.2017.03.031
Número de revista
Desde la página
7
Hasta la página
21
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: D.C. Miller
  • Autor: H.I. Khonkar
  • Autor: Rebeca Herrero Martin (UPM)
  • Autor: Ignacio Anton Hernandez (UPM)
  • Autor: D.K. Johnson
  • Autor: T. Hornung
  • Autor: T. Schmid-Schirling
  • Autor: T.B. Vinzant
  • Autor: S. Deutch
  • Autor: B. To
  • Autor: Gabriel Sala Pano (UPM)
  • Autor: S.R. Kurtz
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física, Ingeniería Eléctrica y Física Aplicada
  • Departamento: Ingeniería Telemática y Electrónica
  • Departamento: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
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