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Time variation of the size-distribution of stored condensation nuclei

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Summary

Stored aerosols belonging to the Aitken nucleus size range are investigated both experimentally and theoretically. Using the exhaustion method of diffusion, it is found that they tend to be composed of particles of different size ranges. The processes of sedimentation, diffusion and coagulation of aerosols in closed containers are discussed in the light of the results. It is considered that turbulence affects the results obtained.

Zusammenfassung

Gespeicherte Aerosole von der Größenordnung von Aitken-Kernen werden experimentell und theoretisch untersucht. Bei Benützung der Diffusionsmethode durch Evakuierung wird festgestellt, daß die Aerosole die Tendenz zeigen, sich aus Partikeln verschiedener Größenordnung zusammenzusetzen. Die Vorgänge der Sedimentation, Diffusion und Koagulation von Aerosolen in geschlossenen Behältern werden im Lichte der Meßresultate diskutiert; dabei wird auch die Wirkung von Turbulenz berücksichtigt.

Résumé

L'auteur examine, des points de vue expérimental et théorique, des aérosols conservés de l'ordre de grandeur des noyaux de Aitken. En utilisant la méthode de diffusion par evacuation, on constate que les dits aérosols ont la tendance à se composer de particules de différents ordres de grandeur. Sur la base des résultats obtenus, l'auteur discute les phénomènes de la sédimentation, de la diffusion et de la coagulation des aérosols en vase clos. Il tient compte alors des effets de la turbulence.

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References

  1. Nolan, J. J., andV. H. Guerrini: The Diffusion Coefficients and Velocities of Fall in Air of Atmospheric Condensation Nuclei. Proc. Roy. Irish Acad.43 A, 5–24 (1935).

    Google Scholar 

  2. Nolan, J. J., andP. J. Nolan: Diffusion and Fall of Atmospheric Condensation Nuclei. Ibid.45 A, 47–63 (1938).

    Google Scholar 

  3. Nolan, P. J., andE. Kuffel: Coagulation and Diffusion of Enclosed Nuclei. Geofis. pura appl.44, 97–106 (1955).

    Google Scholar 

  4. O'Connor, T. C.: Some Characteristics of Condensation Nuclei Stored in a Large Vessel. Ibid.31, 107–114 (1955).

    Google Scholar 

  5. Pollak, L. W., T. C. O'Connor, A. L. Metnieks andR. Furth: On the Determination of the Diffusion Coefficient of Condensation Nuclei Using the Static and Dynamic Methods. Ibid.34, 177–195 (1956).

    Google Scholar 

  6. Pollak, L. W., andA. L. Metnieks: On the Determination of the Diffusion Coefficient of Heterogeneous Aerosols by the Dynamic Method. Ibid.37, 183–190 (1957).

    Google Scholar 

  7. Metnieks, A. L., andL. W. Pollak: Instruction for Use of Photo-Electric Condensation Nucleus Counters. Geophys. Bull. No. 16, School of Cosmic Physics, Dublin, 1959.

    Google Scholar 

  8. Metnieks, A. L., andL. W. Pollak: On the Particle Size Analysis of Polydisperse Aerosols Using a Diffusion Battery and the Exhaustion Method. Geophys. Bull. No. 21, School of Cosmic Physics, Dublin, 1962.

    Google Scholar 

  9. Pollak, L. W., andA. L. Metnieks: The Influence of Air-flow on the Determination of the Diffusion Coefficient of Heterogeneous Aerosols by the Dynamic Method. Geofis. pura appl.44, 224–232 (1959).

    Google Scholar 

  10. O'Connor, T. C., andV. P. V. Flanagan: The Measurement of Size Distributions in Aitken Nuclei. Ibid.50, 60–66 (1961).

    Google Scholar 

  11. Nolan, P. J.: The Influence of Condensation Nuclei and Dust Particles on Atmospheric Ionisation. Proc. Roy. Irish Acad.41 A, 7, 61–69 (1933).

    Google Scholar 

  12. Nolan, P. J.: Experiments on Condensation Nuclei. Ibid.47A, 25–38 (1941).

    Google Scholar 

  13. Pollak, L. W., andT. C. O'Connor: The Uncertainties in Measurements of Concentrations of Condensation Nuclei with Photo-electric Counters and the Decay of Nuclei in Large Vessels. Assoc. de Météorol. U.G.G.I. Rome, Sept. 1954.

  14. Pollak, L. W., andT. C. O'Connor: Decay of Aerosols in Small and Very Small Vessels and a Static Method for Determining the Size of Condensation Nuclei. Geofis. pura appl.31, 66–79 (1955).

    Google Scholar 

  15. Nolan, P. J., andL. W. Pollak: The Calibration of a Photo-electric Nucleus Counter. Proc. Roy. Irish Acad.51 A, 9–31 (1946).

    Google Scholar 

  16. Nolan, P. J., andE. L. Kennan: Condensation Nuclei from Hot Platinum etc. Ibid.52 A, 171–190 (1949).

    Google Scholar 

  17. Whytlaw-Gray, R., andH. S. Patterson: Smoke. London, 1932.

  18. Harper, W. R.: An Exact Theory of the Coagulation of Spherical Particles Arising from Thermal Agitation. Disperse Systems in Gases, Dust, Smoke and Fog. Trans. Faraday Soc., 1936.

  19. Tunitskii, N. N.: J. phys. Chem. U.S.S.R.20, 1137 (1946).

    Google Scholar 

  20. Teverovsky, N.: Izv. Akad. Nauk, U.S.S.R., Ser. Geogr. Geofis. 12, 7 (1948).

    Google Scholar 

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McGreevy, G. Time variation of the size-distribution of stored condensation nuclei. Arch. Met. Geoph. Biokl. A. 14, 37–54 (1963). https://doi.org/10.1007/BF02247754

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