An end of service life assessment of PMMA lenses from veteran concentrator photovoltaic systems

Miller, David C.; Khonkar, Hussameldin I.; Herrero Martin, Rebeca; Anton Hernandez, Ignacio; Johnson, David K.; Hornung, Thorsten; Schmid-Schirling, Tobias; Vinzant, Todd B.; Deutch, Steve; To, Bobby; Sala Pano, Gabriel y Kurtz, Sarah R. (2017). An end of service life assessment of PMMA lenses from veteran concentrator photovoltaic systems. "Solar Energy Materials and Solar Cells", v. 167 ; pp. 7-21. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2017.03.031.

Descripción

Título: An end of service life assessment of PMMA lenses from veteran concentrator photovoltaic systems
Autor/es:
  • Miller, David C.
  • Khonkar, Hussameldin I.
  • Herrero Martin, Rebeca
  • Anton Hernandez, Ignacio
  • Johnson, David K.
  • Hornung, Thorsten
  • Schmid-Schirling, Tobias
  • Vinzant, Todd B.
  • Deutch, Steve
  • To, Bobby
  • Sala Pano, Gabriel
  • Kurtz, Sarah R.
Tipo de Documento: Artículo
Título de Revista/Publicación: Solar Energy Materials and Solar Cells
Fecha: Agosto 2017
Volumen: 167
Materias:
Palabras Clave Informales: AFM; CPV durability; Fresnel lens; PMMA; SEM; Reliability
Escuela: E.T.S.I. Diseño Industrial (UPM)
Departamento: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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 “Solar Village” 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 (“VLABS”) 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.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Comunidad de MadridS2013/MAE-2780MADRID-PVMARTÍ VEGA, ANTONIOMateriales, dispositivos y tecnología para el desarrollo de la industria fotovoltaica

Más información

ID de Registro: 50812
Identificador DC: http://oa.upm.es/50812/
Identificador OAI: oai:oa.upm.es:50812
Identificador DOI: 10.1016/j.solmat.2017.03.031
URL Oficial: https://www.sciencedirect.com/science/article/pii/S0927024817301459
Depositado por: Memoria Investigacion
Depositado el: 16 May 2018 11:09
Ultima Modificación: 16 May 2018 11:09
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