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The scale of a photovoltaics (PVs) field exists between the regional scale and the scale of the air flow on a single PV panel. Field-scaled wind conditions are defined and used in the current study. They are designed after the case of QEERI solar test facility in Doha, Qatar, using a modeling approach based on Computational Fluid Dynamics. The modeling and simulation of such standardized ‘wind’ conditions...
Soiling can greatly decrease the performance of PV systems in desert regions. There are different ways of measuring soiling in the field and laboratory, such as mass of dust deposited, light transmission reduction, or output of a PV cell. A review of common PV soiling measurement techniques is presented. Also, sunlight angle of incidence is shown experimentally to affect the apparent soiling loss...
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