Determination of coagulation coefficients and aggregation kinetics for charged aerosols.


A new method has been developed which allows determination of the coagulation coefficient of two oppositely charged particles experimentally. For this purpose, quasi-monodisperse particles of different sizes and morphology were used to study the influence of different parameters on the coagulation coefficient. A good agreement between experimental results and the classic Fuchs' theory was obtained when including a method accounting for particle nonsphericity. In experiments with polydisperse bipolarly charged aerosols, no principal differences to uncharged aerosols were found when a dimensionless representation was used. Changes in particle number concentration and geometric mean diameter can be described by simple empirical expressions.

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@article{Maisels2002DeterminationOC, title={Determination of coagulation coefficients and aggregation kinetics for charged aerosols.}, author={Arkadi Maisels and F. Einar Kruis and Heinz Fissan}, journal={Journal of colloid and interface science}, year={2002}, volume={255 2}, pages={332-40} }