Theoretical and Experimental Characterization of Efficient Anti-Dust Coatings under Desert Conditions

Isaifan, Rima J.; Johnson, Daniel J.; Mansour, Saber E.; Samara, Ayman; Suwaileh, W.; Kakosimos, Konstantinos

doi:10.30799/jtfr.013.18020101

Cited by 4 publications

(1 citation statement)

References 29 publications

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“…TiO 2 nanocolloids were prepared by polyol method as detailed elsewhere [12][13] [14]. In brief, 125 mL of tetraethyleneglycol (TEG) (Sigma-Aldrich, ≥ 99%) were measured and poured in a three-neck flask.…”

Section: Tio 2 -Coated Films Preparationmentioning

confidence: 99%

Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces

Isaifan

Johnson

Ackermann

et al. 2019

Solar Energy Materials and Solar Cells

120

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Soiling of Photovoltaic (PV) modules is a growing area of concern due to the adverse effect of dust accumulation on PV performance and reliability. In this work, we report on four fundamental adhesion forces that take place at the first stage of soiling process. These are capillary, van der Waal, electrostatic and gravitational forces. It is found that under high relative humidity, the adhesion mechanism between dust particles and PV module surfaces is dominated by capillary force, while van der Waal force dominates under dry conditions. Moreover, real field data for long soiling periods over solar panels in Qatar were investigated and resulted in proposing a novel modified sigmoid function that predicts a relative humidity inflexion value at which transition in the particulate matter deposition rate takes place from low to high values. Moreover, the effect of surface roughness was investigated by measuring adhesion force over clean glass versus substrates that are coated with in-house developed anti-dust titania thin films.

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Section: Tio 2 -Coated Films Preparationmentioning

confidence: 99%

Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces

Isaifan

Johnson

Ackermann

et al. 2019

Solar Energy Materials and Solar Cells

120

View full text Add to dashboard Cite

show abstract

A review on the direct effect of particulate atmospheric pollution on materials and its mitigation for sustainable cities and societies

Al-Thani

Koç

Isaifan

2018

Environ Sci Pollut Res

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Particulate matter (PM) has gained significant attention due to the increasing concerns related to their effects on human health. Although several reviews have shed light on the effect of PM on human health, their critical adverse effect on material's structure and sustainability was almost neglected. The current study is an attempt to fill this gap related to PM impact on structural materials under the overall consideration of sustainability. More specifically, this review highlights the existing knowledge by providing an overview on PM classification, composition, and sources in different locations around the world. Then, it focuses on PM soiling of surfaces such as solar panels due to an increasing need to mitigate the impact of soiling on reducing photovoltaic (PV) power output and financial competitiveness in dusty regions. This topic is of critical importance for sustainable deployment of solar energy in arid and desert areas around the world to help in reducing their impact on overall climate change and life quality. In addition, this review summarizes climate change phenomena driven by the increase of PM concentration in air such as radiative forcing and acid rain deposition due to their impact on human health, visibility and biodiversity. To this end, this work highlights the role of process management, choice of fuel, the implementation of clean technologies and urban vegetation as some possible sustainable mitigation policies to control PM pollution in cities and urban regions. This research is designed to conduct a comprehensive narrative literature review which targets broad spectrum of readers and new researchers in the field. Moreover, it provides a critical analysis highlighting the need to fill main research gaps in this domain. The findings of this review paper show that PM pollution imposes severe adverse impacts on materials, structures and climate which directly affect the sustainability of urban cities. The advantages of this review include the value of the extensive works that elaborate on the negative impacts of PM atmospheric pollution towards high level of public awareness, management flexibility, stakeholder's involvements, and collaboration between academy, research, and industry to mitigate PM impact on materials and human welfare.

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An updated review on factors and their inter-linked influences on photovoltaic system performance

Rao

Mani

Ramamurthy

2018

Heliyon

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Globally installed solar photovoltaics (PV) capacity has crossed three hundred gigawatts and is increasing each year. As the share of solar PV in the energy mix of a country increases, forecasting PV power available will be crucial. To forecast the instantaneous and long-term PV power output, understanding the factors influencing them is necessary. In this view, this work elaborates on the factors that impact the PV system through tabulation and graphical explanation. Further, a discussion of the articles related to the dust-induced change in performance is made. To understand the impact of dust on solar PV systems in depth, advanced instrumentation and methodologies have been used in the past few years. One of the methods is the measurement of spectral transmittance/reflectance/absorptance of the dust layer on the PV panel. This has led to the question whether a thin layer of some specific dust can be beneficial by absorbing infrared (IR) heat and hence allowing the PV cells to operate at a lower temperature. Many controlled experiments in the laboratory have been made using the artificial dust and sun simulators; and such studies aid in the development of numerical models. Research in modeling, mathematical analysis (from first principles) of dust deposition, and calculation of its impact on panels have been given importance in recent years. Outdoor experiments are relatively more common than other modes of research in this field. Studies involving the interaction of deposited dust with spectral radiation, improving the correlation between artificial and natural dust deposition, the interplay between dust and atmospheric parameters are to be encouraged.

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Theoretical and Experimental Characterization of Efficient Anti-Dust Coatings under Desert Conditions

Cited by 4 publications

References 29 publications

Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces

Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces

A review on the direct effect of particulate atmospheric pollution on materials and its mitigation for sustainable cities and societies

An updated review on factors and their inter-linked influences on photovoltaic system performance

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