Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
EFFECT OF SOILING ON PV CONCENTRATORS: COMPARISON WITH FLAT MODULES.
Año:2008
Áreas de investigación
  • Ingeniería eléctrica
Datos
Descripción
The effect of soiling in flat PV modules has been already studied, causing an averaged electrical output reduction near 4%. In principle, as far as soiling produces light scattering at the optical collector surface, the scattered rays in concentrator systems should be definitively lost because they cannot be focused on the receivers. While the theoretical study becomes difficult because the scattering is variable at different sites and due to different types of dust, it becomes easier to begin the monitoring of the real field performance of concentrators and then raise the following questions: how much affect the soiling to PV concentrators in comparison with flat panels?¿, ¿is the effect of the soiling related to the concentration level?¿ and ¿is the nature of the optics (reflective or refractive system) relevant in the obtained results?¿ Answers are a clue in order to predict the PV concentrator electrical performance and to establish how often the concentrators must be cleaned. A first and simple experiment is being carried at the IESUPM site, located in Madrid city, practically in downtown, consisting in four low-concentrators systems (2X, 10X, 20X and 40X), one high-concentrator system (250X) and one flat module. All systems have been measured when soiled and after cleaning, achieving different increases of ISC that are up to 26.2%, after 4 months without heavy rain, for the CPV systems when they are soiled in comparison with the 2-4% of the flat panel.
Internacional
Si
Nombre congreso
33rd IEEE Photovoltaic Specialists Conference PVSC 33
Tipo de participación
960
Lugar del congreso
San Diego, California, USA
Revisores
Si
ISBN o ISSN
978-1-4244-1641-7
DOI
Fecha inicio congreso
11/05/2008
Fecha fin congreso
16/05/2008
Desde la página
991
Hasta la página
994
Título de las actas
Conference proceedings
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Gabriel Sala Pano (UPM)
  • Autor: Marta Vivar García (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Integración de Sistemas e Instrumentos (ISI)
  • Departamento: Electrónica Física
  • Centro o Instituto I+D+i: Instituto de Energía Solar
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