Assessment of dry and wet cleaning of aluminum mirrors toward water consumption reduction

Dounia Dahlioui, Fayrouz El Hamdani, Abdelali Djdiaa, Teodoro Martínez López and Hicham Bouzekri

Renewable Energy, 2023, vol. 205, issue C, 248-255

Abstract: Many solutions have been developed regarding the cleaning of solar reflectors involved in solar energy systems to improve their performance. Most of these solutions are based on the use of water in cleaning operations which does not support the sustainable program of countries suffering from water scarcity. The present paper has proposed and investigated an innovative approach regarding cleaning of solar aluminum mirrors with and without the use of water. The comparison of the performance of both solutions has led to similar results in terms of cleaning efficiency of around 96.27% and 96.03% for wet and dry cleaning respectively. A solar power plant is simulated to evaluate the energy production and the cost of the kWh which has shown that the annual energy production was obtained with a deviation of 0.05%. Furthermore, the cost of the kWh produced by the solar plant was not clearly influenced by the type of the cleaning adopted with a difference of 0.0001$ and a deviation of about 0.07%. In this respect, the use of dry cleaning has allowed the preservation of a consistent amount of water of 73 833 m3 per year.

Keywords: Soiling; Aluminum mirrors; Dry cleaning; Wet cleaning; Energy production (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:205:y:2023:i:c:p:248-255

DOI: 10.1016/j.renene.2023.01.086

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