Investigation of soiling impact on PV modules performance in semi-arid and hyper-arid climates in Morocco

Dahlioui, Dounia; Laarabi, Bouchra; Barhdadi, Abdelfettah

doi:10.1016/j.esd.2019.05.001

Cited by 34 publications

(4 citation statements)

References 22 publications

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“…An important drop off efficiency is recorded upon soiling depending on the density of dust. Our results are in good agreement with other reported works [47][48][49][50][51]. The efficiency η decreases from 15.20% to 10.11% non-linearly for dust accumulation in (HP) site while in the case of the dust of (HD) site, the efficiency decreases from 15.20% to 7.52%.…”

Section: Influence Of Soiling On Solar Panel Sx330j Performancessupporting

confidence: 92%

Structural and Physicochemical Properties of Dust and Their Effect on Solar Modules Efficiency in Agadir-Morocco

Asbayou¹,

Ihlal²,

Isknan³

et al. 2023

Journal of Renewable Materials

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Experiments of soiling effects on the performances of a PV panel have been performed using dust collected from two sites in the region of Agadir-Morocco. The optical transmittance of the front glass was found to depend on the nature and density of dust. The nature of dust was studied by means of scanning electron microscopy and energy dispersive x-ray spectroscopy. It was found that the granulometry of dust particles depends on the study area. For a dust density of around 20 g/m², the maximum power Pmax of the solar panel decreases drastically from 30 to 20 W for the (HP) site, and no more than 14 W for the (AD) site. The diversity of the behavior of the soiled panel was explained in terms of the size of the particles collected from each area. The transmission of light across the front glass of the PV panel is more affected when the sizes of particles are small.

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Section: Influence Of Soiling On Solar Panel Sx330j Performancessupporting

confidence: 92%

Structural and Physicochemical Properties of Dust and Their Effect on Solar Modules Efficiency in Agadir-Morocco

Asbayou¹,

Ihlal²,

Isknan³

et al. 2023

Journal of Renewable Materials

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“…In the same work, the wind velocity that can lead to a natural cleaning is ranged between 0.82 to 2219.8 m/s. Regarding the cleaning by dew, an important amount of dew water is observed on the solar panels which leads to their self-cleaning especially in early mornings (Dahlioui et al 2019). The effect of this latter as a cleaning agent has not been well investigated in literature.…”

Section: Natural Cleaningmentioning

confidence: 99%

Waterless cleaning technique for photovoltaic panels on dual-axis tracker

Dahlioui

Alaoui

Laarabi

et al. 2022

Environ Sci Pollut Res

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Several soiling mitigation solutions and cleaning techniques have been developed to maintain high e ciency of photovoltaic (PV) panels. First of its kind, the investigation of the adaptability of the cleaning systems to solar trackers has been performed. The majority of these systems are dedicated to xed installations whereas only few systems that can be adapted to solar trackers as presented in the updated cleaning systems background. For this reason, this paper presents an innovative approach which consists of combining trackers with an integrated cleaning system that has been designed. Based on the conducted experimental study, a maximum of 7% in soiling losses has been found for the PV generator of 4 kWp equipped with a dual-axis tracker installed in Rabat-Morocco over almost one year. Consequently, a reduced cleaning prototype has been realized and tested to evaluate the energy recovery based on the performed cleaning. The automatic cleaning has presented a similar e ciency with the manual cleaning with a slight difference of 0.95 pp and an increase of energy of 11.5% in the arid region. Through the economic analysis carried out taking into account the gain in energy production, the automatic cleaning cost was 0.14 €/kWh. It has been found that the cleaning technique based on the telescopic arm would be more effective if the tracker is installed in an arid region where soiling is higher than Rabat. In this case the payback time of the cleaning solution is faster (8 to 9 years), hence its pro tability. Corrective cleaning Manual cleaningManual cleaning requires human resources (labor), material such as soft brushes for dry cleaning as well as water in the case of wet cleaning. Karcher (kaercher.com/us/) which is a company specialized in the cleaning products, has developed cleaning brushes made by natural and nylon bristles that avoid micro-scratches to be created on the solar glass surface. These brushes can be tted with air pressure cleaners.As bene ts, the manual cleaning is considered the most e cient method to recover PV performance and it can be performed whenever required (Gupta et al. 2019b). However, it requires high cost and water which is limited as well as scratches may be produced. According to the study of (Fernández-García et al. 2014), the use of demineralized water and a brush was the most effective compared with a jet of air or water with high pressure. The use of detergent is not required since it does not increase the effectiveness of cleaning.

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“…In the literature, the main focus of the most papers dealing with soiling is oriented even to: (i) the measurement of the soiling rate in different locations [ 22 , 23 , 24 , 25 , 26 , 27 ] and for different technologies [ 28 , 29 , 30 ], (ii) the proposition of the optimal cleaning modes and strategies [ 31 , 32 ] and the proposition of some novel soiling measurement devices [ 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the impact of soiling on the modules temperature and performance of two different PV technologies under hot arid climate

Ammari¹,

Mehdi²,

Merrouni³

et al. 2022

Heliyon

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Investigation of soiling impact on PV modules performance in semi-arid and hyper-arid climates in Morocco

Cited by 34 publications

References 22 publications

Structural and Physicochemical Properties of Dust and Their Effect on Solar Modules Efficiency in Agadir-Morocco

Structural and Physicochemical Properties of Dust and Their Effect on Solar Modules Efficiency in Agadir-Morocco

Waterless cleaning technique for photovoltaic panels on dual-axis tracker

Experimental study on the impact of soiling on the modules temperature and performance of two different PV technologies under hot arid climate

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