Experimental investigation of dust deposition effects on photo-voltaic output performance

Gholami, Aslan; Khazaee, Iman; Eslami, Shahab; Zandi, Majid; Akrami, Ehsan

doi:10.1016/j.solener.2017.11.010

Cited by 202 publications

(64 citation statements)

References 39 publications

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“…To the best of our knowledge, in the literature, no work has been done to correlate the derating factors η dust to the amount of natural dust deposition on PV module surface. When we explored a large number of papers, it turned out that only four papers (Gholami et al 2018 ; Ali et al 2015a ; Sayyah et al 2014 ; Kaldellis and Kapsali 2011 ) provide the data in question (three for natural pollution and one for artificial pollution) which can be directly used as a basis for the development of a theoretical model. All the relevant data available in the literature will be subsequently used to validate and extend the range of the proposed model’s functionality and will be discussed at the end of this chapter.…”

Section: Resultsmentioning

confidence: 99%

“…Only a few studies deal with natural dust. The key and unique data available in the literature (Gholami et al 2018 ; Ali et al 2015a ; Sayyah et al 2014 ; Kaldellis and Kapsali 2011 ) are presented in Fig. 7 a. Additionally, in the literature data, only the results of Ali et al ( 2015a ) are presented for two different types of modules: mono- and polycrystalline, while almost all other studies concentrate on one type of PV technologies only.…”

Section: Resultsmentioning

confidence: 99%

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The field experiments and model of the natural dust deposition effects on photovoltaic module efficiency

Jaszczur

Teneta

Styszko

et al. 2018

Environ Sci Pollut Res

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The maximisation of the efficiency of the photovoltaic system is crucial in order to increase the competitiveness of this technology. Unfortunately, several environmental factors in addition to many alterable and unalterable factors can significantly influence the performance of the PV system. Some of the environmental factors that depend on the site have to do with dust, soiling and pollutants. In this study conducted in the city centre of Kraków, Poland, characterised by high pollution and low wind speed, the focus is on the evaluation of the degradation of efficiency of polycrystalline photovoltaic modules due to natural dust deposition. The experimental results that were obtained demonstrated that deposited dust-related efficiency loss gradually increased with the mass and that it follows the exponential. The maximum dust deposition density observed for rainless exposure periods of 1 week exceeds 300 mg/m 2 and the results in efficiency loss were about 2.1%. It was observed that efficiency loss is not only mass-dependent but that it also depends on the dust properties. The small positive effect of the tiny dust layer which slightly increases in surface roughness on the module performance was also observed. The results that were obtained enable the development of a reliable model for the degradation of the efficiency of the PV module caused by dust deposition. The novelty consists in the model, which is easy to apply and which is dependent on the dust mass, for low and moderate naturally deposited dust concentration (up to 1 and 5 g/m 2 and representative for many geographical regions) and which is applicable to the majority of cases met in an urban and non-urban polluted area can be used to evaluate the dust deposition-related derating factor (efficiency loss), which is very much sought after by the system designers, and tools used for computer modelling and system malfunction detection.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

The field experiments and model of the natural dust deposition effects on photovoltaic module efficiency

Jaszczur

Teneta

Styszko

et al. 2018

Environ Sci Pollut Res

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“…The noticeable difference between these results was due to the varied weather conditions. Gholami et al [5], in 2018, conducted an experimental work to study the impact of dust after 70 days without rain. The main finding proved that during the period of the experiment, dust surface density increased up to 6.0986 g/m 2 , which caused a 21.47% reduction in the power output.…”

Section: Introductionmentioning

confidence: 99%

Environmental Impacts on the Performance of Solar Photovoltaic Systems

et al. 2020

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This study scrutinizes the reliability and validity of existing analyses that focus on the impact of various environmental factors on a photovoltaic (PV) system’s performance. For the first time, four environmental factors (the accumulation of dust, water droplets, birds’ droppings, and partial shading conditions) affecting system performance are investigated, simultaneously, in one study. The results obtained from this investigation demonstrate that the accumulation of dust, shading, and bird fouling has a significant effect on PV current and voltage, and consequently, the harvested PV energy. ‘Shading’ had the strongest influence on the efficiency of the PV modules. It was found that increasing the area of shading on a PV module surface by a quarter, half, and three quarters resulted in a power reduction of 33.7%, 45.1%, and 92.6%, respectively. However, results pertaining to the impact of water droplets on the PV panel had an inverse effect, decreasing the temperature of the PV panel, which led to an increase in the potential difference and improved the power output by at least 5.6%. Moreover, dust accumulation reduced the power output by 8.80% and the efficiency by 11.86%, while birds fouling the PV module surface was found to reduce the PV system performance by about 7.4%.

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“…Figgis et al [7] conducted a study that investigated the effects of some environmental and physical variables on the condensation of soiled PV surfaces: Relative humidity, surface dew point temperature difference, hygroscopic dust content, and surface wettability. Gholami et al [26] conducted a seventy-days experiment in order to evaluate the impact of soiling on the electrical performance of PV modules in Tehran (Iran). Fountoukisa et al [27] conducted a research in order to evaluate the effect of dust on the performance of PV modules during a twelve months period in Qatar using experimental field measurements and modeling, where they developed a nonlinear correlation between specific environmental parameters (relative humidity, dust particles mass, and PV electrical losses).…”

Section: Introductionmentioning

confidence: 99%

Soiling of Photovoltaic Modules: Comparing between Two Distinct Locations within the Framework of Developing the Photovoltaic Soiling Index (PVSI)

Alquthami

Menoufi

2019

Sustainability

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This article evaluates the impact of dust accumulation on the performance of photovoltaic (PV) modules in two different locations inside Egypt, Cairo and Beni-Suef. Two identical PV modules were used for that purpose, where each module was exposed to the outdoor environment in order to collect dust naturally for a period of three weeks, each in its corresponding location. The approximate dust density on each of the two PV modules was estimated. Moreover, the electrical performance was evaluated and compared under the same indoor testing conditions. The results show a better electrical performance and less dust density for the PV module located in Cairo compared to that located in Beni-Suef. The results further provide an indication for the impact of soling in different locations within the same country through a clear and simple procedure. In addition, it paves the way for establishing a Photovoltaic Soiling Index (PVSI) in terms of a Photovoltaic Dust Coefficient, as well as a Photovoltaic Dust Interactive Map. The product of such concepts could be used by the Photovoltaic systems designers everywhere in order to estimate the impact of dust on the future performance of PV modules in small and large installations in different regions around the globe, and during different times of the year as well.

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Experimental investigation of dust deposition effects on photo-voltaic output performance

Cited by 202 publications

References 39 publications

The field experiments and model of the natural dust deposition effects on photovoltaic module efficiency

The field experiments and model of the natural dust deposition effects on photovoltaic module efficiency

Environmental Impacts on the Performance of Solar Photovoltaic Systems

Soiling of Photovoltaic Modules: Comparing between Two Distinct Locations within the Framework of Developing the Photovoltaic Soiling Index (PVSI)

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