Sedimentation of a Fine Aerosol in the Acoustic Field and with the Electrostatic Charge of Particles

• Autorzy: Stepkina M. Y. , Kudryashova O. B. , Antonnikova A. A.

Identyfikatory

DOI

10.24425/118081

• Języki publikacji: EN

Abstrakty

EN

Finding an efficient way to eliminate fine dust (particle diameter of 1-15 µm) from a room can be a challenging problem. Acoustic radiation emitters are widely used to accelerate particle coagulation and sedimentation. In this study, we propose one more method for depositing harmful particles – dispersion of electrostatically charged particles. These particles attract uncharged particles from the air and accelerate coagulation. The paper is devoted to a comparison of methods for the acoustic and electrostatic sedimentation of aerosols. The mathematical model for the coagulation of aerosols on the basis of Smoluchowski’s equation is proposed in the options corresponding to acoustic and electrostatic coagulation. A number of conclusions about the most effective conditions of sedimentation were made on the basis of the analysis of a kernel type of Smoluchowski’s integral equation. The results of the experiments on acoustic and electrostatic sedimentation of the model aerosol media (coal dust) are given. The results of the calculations according to the mathematical model of coagulation taking into account the proposed mechanisms for the sedimentation of aerosols in the acoustic field and electrostatic charging of particles are given.

Słowa kluczowe

EN

fine aerosol; size distribution; acoustic exposure; electrostatic charge; coagulation; sedimentation

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Polska Akademia Nauk
• Czasopismo: Archives of Acoustics
• Rocznik: 2018
• Tom: Vol. 43, No. 1
• Strony: 69--73
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Stepkina M. Y.

• Institute for Problems of Chemical and Energetic Technologies of the Siberian Branch of the Russian Academy of Sciences, Socialisticheskaya 1, 659322, Biysk, Russia

autor

Kudryashova O. B.

• Institute for Problems of Chemical and Energetic Technologies of the Siberian Branch of the Russian Academy of Sciences, Socialisticheskaya 1, 659322, Biysk, Russia

autor

Antonnikova A. A.

• Institute for Problems of Chemical and Energetic Technologies of the Siberian Branch of the Russian Academy of Sciences, Socialisticheskaya 1, 659322, Biysk, Russia

Bibliografia

• 1. Czyz H. (1997), On the relation between the inertial coagulation and the amplitudial effect, Archives of Acoustics, 22, 4, 437-444.
• 2. Khmelev V. N., Shalunov A. V., Golykh R. N., Dorovskikh R. S., Nesterov V. A., Khmelev S. S., Shalunova K. V. (2016), Efficiency increase of wet gas cleaning from dispersed admixtures by the application of ultrasonic fields, Archives of Acoustics, 41, 4, 757-771.
• 3. Khmelev V. N., Shalunov A. V., Shalunova K. V. (2008), The acoustical coagulation of aerosols [in Russian], Proceedings of 9th International Workshop and Tutorials on Electron Devices and Materials Proceedings, Novosibirsk.
• 4. Korovina N. V., Antonnikova A. A., Kudryashova O. B. (2013), Sedimentation of superfine aerosol by means of ultrasound, Open Journal of Acoustics, 3A, 16-20.
• 5. Kudryashova O. B., Antonnikova A. A., Korovina N. V., Akhmadeev I. R. (2015a), Mechanisms of aerosol sedimentation by acoustic field, Archives of Acoustics, 40, 4, 485-489.
• 6. Kudryashova O. B, Pavlenko A., Vorozhtsov B., Titov S., Arkhipov V., Bondarchuk S., Maksimenko E., Akhmadeev I., Muravlev E. (2012), Remote optical diagnostics of nonstationary aerosol media in a wide range of particle sizes, [in:] Photodetectors, pp. 341-364, InTech, Rijeka, Croatia.
• 7. Kudryashova O. B., Stepkina M. Y. (2016) Electrostatic charge of powder particles and their sorption capacity, Proc. HEMS 2016, pp. 136-137, Tomsk.
• 8. Kudryashova O. B., Stepkina M. Y., Korovina N. V., Antonnikova A. A., Muravlev E. V., Pavlenko A. A. (2015b), Atomization of nanopowders for adsorption of toxic substances, Journal of Engineering Physics and Thermophysics, 88, 4, 833-838.
• 9. Mednikov E. (1966), Acoustic coagulation and precipitation of aerosols, Consultants Bureau, New York.
• 10. Smoluchowski M. (1916), Three reports on diffusion, Brownian molecular movement and noagulation of colloid particles [in German], Physik. Z., 17, 557-571, 585-599.
• 11. Wyrzykowski R. (1956), Sonic agglomeration of aerosols, Proceedings of II Conference on Ultrasonic, PWN, Warszawa, 103-109.
• 12. Wyrzykowski R. (1969), A theory of acoustic coagulation [in Polish], University of Rzeszow, 1, 125-135.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).