Correlation between Dirt on The Photovoltaic Module Surface and Climatic Parameters in the Dakar Region, Senegal

Aidara, Mohamed Cherif; Ndiaye, Mamadou Lamine; Nkounga, Willy Magloire

doi:10.1109/icrera.2018.8566807

Cited by 6 publications

(1 citation statement)

References 15 publications

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“…In Africa, solar production is expected to reach 70 GW by 2030 [3]. Since 2015, Senegal has increased its solar capacity with the installation of new plants according to Aidara et al [4]. However, the efficiency of PV module production in arid and semi-arid regions is strongly influenced by dust deposition [5].…”

Section: Study Contextmentioning

confidence: 99%

Modelling of Photovoltaic Modules Optical Losses Due to Saharan Dust Deposition in Dakar, Senegal, West Africa

Diop¹,

Drame²,

Diallo³

et al. 2020

SGRE

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This study aims to evaluate the optical losses of photovoltaic modules due to Saharan dust deposition in Dakar, Senegal, West Africa. For this purpose, an air-dust-glass system is modeled to simulate optical losses in transmittance and reflectance. To do this, we have collected dust samples from Photo-Voltaic (PV) surface in Dakar area (14˚42'N latitude, 17˚28'W longitude), Senegal. X-ray fluorescence reveals that silicon (Si), iron (Fe), calcium (Ca) and potassium (K) mainly composed these dust samples. Then, dust refractive indices obtained from an ellipsometer were used as an input to be used in the model. Simulations show that for radiation (at normal incidence) arriving on a dust layer of 30 μm-thick (corresponding to a dust deposit of 1.63 g/m 2), 79% of the visible spectrum is transmitted; 19% is reflected and 2% is absorbed. Overall, the transmittance decreases by more than 50% as of dust layer of 70 μm-thick corresponding to a dust deposit of 3.3 g/m 2 .

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Section: Study Contextmentioning

confidence: 99%