Memorias de investigación
Research Publications in journals:
Effect of Soiling in CPV systems
Year:2013

Research Areas
  • Electronic technology and of the communications

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 allow to predict the PV concentrator electrical performance and to establish a pattern of cleaning frequency. Some experiments have been conducted at the IES-UPM and CSES-ANU sites, consisting in linear reflective concentration systems, a point focus refractive concentrator and a flat module. All the systems have been measured when soiled and then after cleaning, achieving different increases of ISC. In general, results show that CPV systems are more sensitive to soiling than flat panels, accumulating losses in ISC of about 14% on average in three different tests conducted at IESUPM and CSES-ANU test sites in Madrid (Spain) and Canberra (Australia). Some concentrators can reach losses up to 26% when the system is soiled for 4 months of exposure.
International
Si
JCR
Si
Title
Solar Energy
ISBN
0038-092X
Impact factor JCR
2,952
Impact info
Volume
10.1016/j.solener.2010.03.031
Journal number
7
From page
1327
To page
1335
Month
SIN MES
Ranking
26/78 ENERGY AND FUELS (SCI)
Participants

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