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This paper presents experimental results of unipolar diffusion charging of monodisperse combustion aerosols in the size range of 10–300nm. A Hewitt-type corona charger was designed for the purpose of the investigation and tested in a Tandem-DMA experimental configuration with particles produced by a combustion aerosol generator (CAG). Measurements of the mean charge and the actual charge distribution...
This paper investigates the electrostatic properties of aerosol corona-wire diffusion chargers. The most important parameters that determine charging levels of particles at the outlet of such devices are the ion concentration, Ni, and the mean residence time of the aerosol in the charging zone, t. A method to determine the exact Nit product is presented and used for the characterization of a Hewitt-type...
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