Dirt deposition on solar irradiance measurement instruments can lead to errors in radiationmeasurements and, as a result, in incorrect energy production management issues. Climate and meteorological conditions may affect in different way the deposition process and thus, soiling severity and type are geographical and time-dependent. To investigate the soiling impact, here we describe a methodology that allows estimating the effect of dirt deposition on solar irradiance measurement systems, e.g., pyrheliometer. The methodology relies on the evaluation of a soiling index, based on pyranometer data measurements and it has been in field validated, using a solar irradiance measurement system deployed at ENEA Research Center of Portici. The results show that, under suitable assumptions, the computed index may be used to obtain a reasonable estimation of soiling effect.
Soiling Detection Investigation in Solar Irradiance Sensors Systems
Esposito E.;Leanza G.;Di Francia G.
2023-01-01
Abstract
Dirt deposition on solar irradiance measurement instruments can lead to errors in radiationmeasurements and, as a result, in incorrect energy production management issues. Climate and meteorological conditions may affect in different way the deposition process and thus, soiling severity and type are geographical and time-dependent. To investigate the soiling impact, here we describe a methodology that allows estimating the effect of dirt deposition on solar irradiance measurement systems, e.g., pyrheliometer. The methodology relies on the evaluation of a soiling index, based on pyranometer data measurements and it has been in field validated, using a solar irradiance measurement system deployed at ENEA Research Center of Portici. The results show that, under suitable assumptions, the computed index may be used to obtain a reasonable estimation of soiling effect.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
