Impact of pre-charged particles on steady state and pulsed modes of unipolar diffusion chargers

Knoll, Markus; Schriefl, Mario Anton; Nishida, Robert T.; Bergmann, Alexander

doi:10.1080/02786826.2021.1873910

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…The charging process is used to condition the aerosol for interaction with an instrument, such as an aerosol electrometer for particle number (PN) [5] measurement or a DMA for size selection. Diffusion-charging-based PN sensors are established devices and can be realized in different configurations [5,7,8].…”

Section: Diffusion Charging By Plasma Dischargementioning

confidence: 99%

Aerosol Charging with a Piezoelectric Plasma Generator

Krasa

Schriefl

Kupper

et al. 2021

Plasma

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A novel piezoelectric plasma generator developed by TDK Electronics GmbH & Co OG, the CeraPlas®, was investigated for its feasibility as a charger for aerosol particles. The CeraPlas® charger was directly compared to a commercially available bipolar X-ray charger regarding its efficiency of charging atomized NaCl particles in a size range from 30nm–100nm. First results show the ability of the CeraPlas® to perform bipolar aerosol charging with high reproducibility, and measurements of the charge distribution in the Nit product yielded about E12/m3s for our experimental charging configuration. Unwanted generation of ozone was suppressed by a dedicated charging chamber and operation in N2 atmosphere.

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Section: Diffusion Charging By Plasma Dischargementioning

confidence: 99%

Aerosol Charging with a Piezoelectric Plasma Generator

Krasa

Schriefl

Kupper

et al. 2021

Plasma

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“…Although many numerical models for specific charging behaviour, e.g. diffusion charging [7,[26][27][28][29] or photoelectric charging [23], have been developed, the models for comprehensive aerosol charging in combination with computational fluid dynamics (CFD) simulations [25,30] are rare. Open-source codes which combine aerosol and computational fluid dynamics phenomena are limited to other applications in the areas of aerosol dynamics, transport or aerosol growth rather than charging [31,32].…”

Section: Introductionmentioning

confidence: 99%