Mechanisms of Aerosol Sedimentation by Acoustic Field

• Autorzy: Kudryashova O. , Antonnikova A. , Korovina N. , Akhmadeev I.

Identyfikatory

DOI

10.1515/aoa-2015-0048

• Języki publikacji: EN

Abstrakty

EN

Acoustic radiation sources are successfully applied to cleaning rooms from dust of fairly large particle sizes (ten micrometers and larger). The sedimentation of fine aerosols (particle diameter of 1–10 microns) is a more complicated challenge. The paper is devoted to the substantiation of the acoustic sedimentation method for such aerosols. On the basis of the mathematical model analysis for aerosol sedimentation by the acoustic field the mechanisms of this process have been determined and include the particle coagulation acceleration and radiation pressure effect. The experimental results of the acoustic sedimentation of a model aerosol (NaCl) are shown. The calculation results according to the mathematical model for coagulation and sedimentation, on the basis of the Smolukhovsky’s equation taking into account various mechanisms of aerosol sedimentation by sound depending on the particle sizes and sound intensity, are given. The necessity to use intensive sources of high-frequency sound has been confirmed, suggesting that these sources must be located above dust clouds.

Słowa kluczowe

EN

fine aerosol; size distribution; acoustic impact; coagulation; sedimentation; radiation pressure

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2015
• Tom: Vol. 40, No. 4
• Strony: 485--489
• Opis fizyczny: Bibliogr. 9 poz., rys., tab., wykr.

Twórcy

autor

Kudryashova O.

• 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.

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

autor

Korovina N.

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

autor

Akhmadeev I.

• 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. Antonnikova A.A., Korovina N.V., Kudryashova O.B., Akhmadeev I.R. (2013), Experimental Study of the Processes of Aerosol Transformation under Ultrasonic Impact, Atmospheric and Oceanic Optics, 1, 57–59.
• 2. Antonnikova A.A., Kudryashova O.B., Shalunova K.V. (2012), Application of Ultrasound to Settle submicron Aerosols, Proceedings of International Conference EDM 2012, pp. 87–89, Biysk, Russia.
• 3. Czyz H. (1997), On the relation between the inertial coagulation and the amplitudial effect, Archives of Acoustics, 22, 4, 437–444.
• 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., 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.
• 6. Mednikov E. (1966), Acoustic coagulation and precipitation of aerosols, Consultants Bureau, New York.
• 7. Smoluchowski M. (1916), Three reports on diffusion, Brownian molecular movement and ńoagulation of colloid particles [in German], Physik. Z., 17, 557–571, 585–599.
• 8. Wyrzykowski R. (1969), A theory of acoustic coagulation [in Polish], University of Rzeszow, 1, 125–135.
• 9. Wyrzykowski R. (1956), Sonic agglomeration of aerosols, Proceedings of II Conference on Ultrasonic, PWN, Warszawa, 103–109.