Memorias de investigación
Communications at congresses:
Effect of soiling in PV Concentrators: Mechanisms of Light Dispersion and real Field Performance of soiled flat modules and CPV's
Year:2008

Research Areas
  • Electronics engineering,
  • Electric engineering

Information
Abstract
The effect of soiling in flat PV modules has been already studied, causing a reduction of the electrical output of 4% on average. For CPV¿s, as far as soiling produces light scattering at the optical collector surface, the scattered rays should be definitively lost because they cannot be focused onto the receivers again. While the theoretical study becomes difficult because soiling is variable at different sites, it becomes easier to begin the monitoring of the real field performance of concentrators and then raise the following question: how much does the soiling affect to PV concentrators in comparison with flat panels?¿ The answers will allow to predict the PV concentrator electrical performance and to establish a pattern of cleaning frequency. A first and simple experiment is being conducted at the IES-UPM site, consisting in four linear reflective concentration systems, one point focus refractive concentrator and one flat module. All the systems have been measured when soiled and then after cleaning, achieving different increases of ISC that are 14% on average for the CPV systems when they are soiled in comparison with the 2-4% of the flat panels.
International
Si
Congress
23rd European Photovoltaic Solar Energy Conference
960
Place
Valencia, España
Reviewers
Si
ISBN/ISSN
3-936338-24-8
Start Date
01/09/2008
End Date
05/09/2008
From page
142
To page
145
Proceedings of the International Conference held in Valencia, Spain
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Integración de Sistemas e Instrumentos (ISI)
  • Departamento: Sistemas Electrónicos y de Control
  • Departamento: Electrónica Física
  • Centro o Instituto I+D+i: Instituto de Energía Solar