The morphological features and elemental composition of the dust pollution on the photovoltaic module

In this work, scanning electron microscopy and X-ray energy dispersive analysis methods were used to study the morphology and composition of dust and dirt that accumulates on the protective glass surface of the photovoltaic module. These modules are located in the local Tashkent area. It is shown here that the sizes of the inorganic particles varied from 2 μm to 75 μm, while the organic particles are up to several millimeters in size. The inorganic dust component consists of particles with different shapes, while the organic dust is characterized by a fibrous structure in which holes and micropores were found. Elemental composition studies have shown significant differences between samples of inorganic and organic origin. Analysis of the elemental composition showed a high weight fraction of oxygen, indicating its chemical bonding in compounds with silicon, calcium, carbon and iron, which suggests the presence of these elements in the form of stable oxides. It is shown that organic pollution components contains oxygen, carbon, nitrogen and phosphorus, which may indicate a high content of organic compounds in the form of plant fibers and oxides; the last two elements are characteristic of bird waste products. These studies that were carried out to determine the morphological features and to quantitatively analyze the composition of the dust and dirt that accumulates on the protective glass surface of the photovoltaic module allows us to conclude that the search for methods for preventing and cleaning this accumulation on the front surface of the modules should be targeted for particles of inorganic origin with longitudinal dimensions of up to 30 μm and at the same time it is necessary to look for ways to deterio- rate their adhesive properties. Another important conclusion in the case of organic pollution is that the organic compounds found in bird droppings are in a water-soluble form, which allows you to clean the surface of photovoltaic modules without the use of special detergents.

1. Jäger-Waldau, A. PV Status Report 2019 / A. Jäger-Waldau– Luxembourg: Publications Office of the European Union, 2019. – 79 s.

2. Proektirovanie fotoehlektricheskikh sistem: uchebno-metodicheskoe posobie / sost. A.A. But'ko i dr. Minsk: IVTS Minfina, 2018. – 294 s.

3. ShafqatMughal. A Review on Solar Photovoltaic Technology and Future Trends / Shafqat Mughal,Yog Raj Sood, R.K Jarial // International Journal of Scientific Research in Computer Science, Engineering and Information Technology. – 2018. – V. 4. – I. 1. – P. 227–235.

4. Tukfatullin, O.F. Vybor optimal'nogo ugla naklona fotoehlektricheskikh panelei s odnopozitsionnoi fiksatsiei statsionarnykh fotoehlektricheskikh sistem v zavisimosti ot geograficheskoi shiroty i insolyatsii v techenie goda / O.F. Tukfatullin // Geliotekhnika. – 2016. – № 4. – S. 17–20.

5. Tursunov, M.N.Razrabotka fotoehlektricheskoi ustanovki dlya raboty v usloviyakh zharkogo klimata / M.N. Tursunov [i dr.] // Geliotekhnika.– 2006.– № 3.– S. 13–17.

6. Tadzhiev, U.A. Vozmozhnosti ispol'zovaniya solnechnykh fotoehlektricheskikh i vetroehlektricheskikh ustanovok v sistemakh ehlektrosnabzheniya sel'skikh naselennykh punktov, raspolozhennykh v udalennykh mestnostyakh s osobo slozhnymi prirodnymi i klimaticheskimi usloviyami/ U.A. Tadzhiev, R.A. Zakhidov, E.I. Kiseleva // Geliotekhnika. – 2017. – № 2. – S. 66–71.

7. Tadzhiev, U.A. Vozmozhnosti ispol'zovaniya solnechnykh fotoehlektricheskikh i vetroehlektricheskikh ustanovok v sistemakh ehlektrosnabzheniya sel'skikh naselennykh punktov, raspolozhennykh v udalennykh mestnostyakh s osobo slozhnymi prirodnymi i klimaticheskimi usloviyami. Chast' II / U.A. Tadzhiev, R.A. Zakhidov, E.I. Kiseleva // Geliotekhnika. – 2017. – № 3. – S. 54–58.

8. Naihong Shu. Experimental and Theoretical Study on the Optimal Tilt Angle of Photovoltaic Panels / Naihong Shu [et al.] // Journal of Asian Architecture and Building Engineering. – 2006. – V. 5. – No. 2. – P. 399– 405.

9. Habtamu, B.M. Performance analysis of roofmounted photovoltaic systems – The case of a Norwegian residential building / B.M. Habtamu // Energy Procedia. – 2015. – 83. – P. 474–483.

10. Akif Karafil. Calculation of Optimum Fixed Tilt Angle of PV Panels Depending on Solar Angles and Comparison of the Results with Experimental Study Conducted in Summer in Bilecik, Turkey / Akif Karafil // Published in:2015 9th International Conference on Electrical and Electronics Engineering (26–28 November 2015, Bursa, Turkey) / Akif Karafil [et al.]–Bursa, 2015. –P. 971–976.

11. Jordan, D.C. Technology and Climate Trends in PV Module Degradation / D.C. Jordan // Presented at the 27th European Photovoltaic Solar Energy Conference and Exhibition (24–28 September 2012, Frankfurt, Germany) / D.C. Jordan, J.H. Wohlgemuth, S.R. Kurtz – Frankfurt, 2012. – P. 1–7.

12. Panagea, I.S. Climate Change Impact on Photovoltaic Energy Output: The Case of Greece / I.S. Panagea[et al.] // Advances in Meteorology. – 2014. – V. 2014. –S. 1–11.

13. Haitham Bahaidarah. Performance evaluation of a PV module under climatic conditions of Dhahran, Saudi Arabia / Haitham Bahaidarah [et al.] // ENERGY EXPLORATION & EXPLOITATION. –2015. – V. 33. – N. 6. – P. 909–930.

14. RamadanJ. Mustafa. Environmental Impacts on the Performance of Solar Photovoltaic Systems [Ehlektronnyiresurs] / Ramadan J. Mustafa [et al.] // Sustainability. – 2020. – 12(2). – Rezhim dostupa: https://doi.org/10.3390/su12020608. – (Data obrashcheniya: 03.02.2021).

15. Razrabotka prognozov tekushchei pogody i sverkhkratkosrochnykh prognozov s ispol'zovaniem sovremennykh sistem nablyudeniya za atmosferoi i produktsii chislennykh modelei: metodicheskoe posobie / V.I. Luk'yanov. – M.: Gidrometeorologicheskii nauchnoissledovatel'skii tsentr Rossiiskoi Federatsii, 2018. – 96 s.

16. Precipitation Accuracy Considerations [Ehlektronnyi resurs]. – Rezhim dostupa: https://content.meteoblue.com/en/specifications/weathervariables/precipitation/accuracy-considerations. – METEOBLUE. – (Data obrashcheniya: 15.02.2021).

17. Zhilov, YU.D. Spravochnik po meditsine truda i ehkologii / YU.D. Zhilov, G.I. Kutsenko. – 2-e izd., pererab. i dop. – M.: Vyssh. shk., 1995. – 172 c.

18. Federico Karagulian. Contributions to cities' ambient particulate matter (PM): A systematic review of local source contributions at global level / Federico Karagulian [et al.] // Atmospheric Environment. – 2015. – V. 120. – P. 475–483.

19. Zorrilla-Casanova, J.Analysis of dust losses in photovoltaic modules / Zorrilla-Casanova J. // Published in: Word Renewable Energy Congress 2011 – Sweden (8–13 May 2011, Linköping, Sweden) / ZorrillaCasanova J.[et al.]–Linköping, 2011. – 8 p.

20. Yunlin Sun. Investigating the Impact of Shading Effect on the Characteristics of a Large-Scale GridConnected PV Power Plant in Northwest China [Ehlektronnyiresurs] / Yunlin Sun [et al.] // International Journal of Photoenergy. – 2014. – V. 2014. – Rezhim dostupa:https://doi.org/10.1155/2014/763106. – (Data obrashcheniya: 24.02.2021).

21. Hottel, H. Performance of Flat Plate Solar Heat Collectors / H. Hottel,B. Woertz // Transactions of the American Society of Mechanical Engineers.– 1942.–V. 64.–P. 91–104.

22. Nimmo, B. Effects of dust on the performance of thermal and photovoltaic flat plate collectors in Saudi Arabia: Preliminary results / B. Nimmo // Published in: Proceedings of the "Second Miami International Conference on Alternative Energy Sources"(10–13 December 1979, Miami Beach, FL, USA) / B. Nimmo, S.A.M. Seid–Washington, D.C., 1981.–P. 145–152.

23. Bergin, M.H. Large Reductions in Solar Energy Production Due to Dust and Particulate Air Pollution / M.H. Bergin [et al.] // Environmental Science & Technology Letters. – 2017. –V. 4. –P. 339–344.

24. The European Environment. State and Outlook 2010. Air Pollution / Martin Adams, Anke Lükewille. – Luxembourg: Publications Office of the European Union, 2010. –42 p.

25. Grousset, F.E. Case study of a Chinese dust plume reaching the French Alps / F.E. Grousset [et al.] //Geophysical Research Letters. –V. 30. – No. 6. – 1277.

26. Marticorena, B. Modeling the atmospheric dust cycle: 1. Design of a soil-derived dust emission scheme / B. Marticorena, G. Bergametti // J. Geophys. Res. –V. 100. – No. 16. –P. 415–416.

27. Alfaro, S.C.Mineral aerosol production by wind erosion: aerosol particle sizes and binding energies / S.C. Alfaro, A. Gaudichet, L. Gomes, M. Maillé // Geophysical Research Letters. – 1998. –V. 25. – No. 7. – P. 991– 994.

28. Prospero, J.M.Saharan Dust Transport Over the North Atlantic Ocean and Mediterranean: An Overview / J.M. Prospero //S. Guerzoni, R. Chester R. (eds). The Impact of Desert Dust Across the Mediterranean. Environmental Science and Technology Library–Miami, FL, 1996. –V. 11. – P. 133–151.

29. Sil'nyi veter v Karakalpakstane sorval kryshi zdanii [Ehlektronnyi resurs] – Rezhim dostupa: https://www.gazeta.uz/ru/2019/06/15/storm/. – Gazeta.uz. – (Data obrashcheniya: 26.02.2021).

30. Aïssa, B. Structural and physical properties of the dust particles in Qatar and their influence on the PV panel performance [Ehlektronnyi resurs] / B. Aïssa [et al.]// Scientific Reports –2016. –V. 6. –Rezhim dostupa:https://doi.org/10.1038/srep31467– (Data obrashcheniya: 27.02.2021).

31. Aral'skoe more i Priaral'e / pod obshch. red. prof. V.A. Dukhovnogo. – Tashkent: Baktriapress, 2017. – 120 s.

32. Agrokhimiya: uchebnik / pod red. V.G. Mineeva. M.: Izd-vo VNIIA im. D.N. Pryanishnikova, 2017. – 854 s.