Dust accumulation effects on efficiency of solar PV modules for off grid purpose: A case study of Kathmandu
作者： Basant Raj Paudyal , Shree Raj Shakya
DOI: 10.1016/J.SOLENER.2016.05.046
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摘要: Abstract The future of the world lies with renewable energy resources and solar is one such type clean sustainable resource. Solar PV modules are exposed to outdoor environments where dust accumulation a prime degrading factor. Soiling its effect on performance generally high concern for regions deposition low frequency less intensity rain. But some areas abundant rainfall may also suffer from in dry season. Kathmandu, peculiar environment conditions, suffers air pollution minimum during winter. In this study, investigated respect density meteorological variables Kathmandu objective calculate regression equation describing efficiency loss. Outdoor installation experimental setup showed that study period 5 months, dusty module left natural phenomena decreases by 29.76% which was cleaned daily basis. Dust accounted 9.6711 g/m2 over period. research highly concentrated at bottom having risk hot spots could eventually lead permanent damage.
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