Robust method to compare aerosol chargers

Kleefsman, W.A.; Gulijk, Coen van

doi:10.1016/j.jaerosci.2007.09.006

Cited by 6 publications

(2 citation statements)

References 22 publications

(39 reference statements)

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“…The first phenomenon results from collisions between unipolar ions generated by the corona charger and particles flowing through this charger. The number of charges that a spherical particle acquires by unipolar diffusion as a function of residence time has been theoretically summarized by Hinds (1999), Baron and Willeke (2000), and more recently Kleefsman and Van Gulijk (2008):…”

Section: Theoretical Considerationsmentioning

confidence: 99%

Charging Efficiency of the Electrical Low Pressure Impactor's Corona Charger: Influence of the Fractal Morphology of Nanoparticle Aggregates and Uncertainty Analysis of Experimental Results

Ouf¹,

Sillon²

2009

Aerosol Science and Technology

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Section: Theoretical Considerationsmentioning

confidence: 99%

Charging Efficiency of the Electrical Low Pressure Impactor's Corona Charger: Influence of the Fractal Morphology of Nanoparticle Aggregates and Uncertainty Analysis of Experimental Results

Ouf¹,

Sillon²

2009

Aerosol Science and Technology

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“…Instead of using a pin-to-plate type corona charger, which is used in ELPI, a wire-to-rod type corona charger serves as the particle charger for the ECI, since it has been reported that in pin (needle) type corona devices, the usage of a pin can wear the pin out and change its geometry, leading to a change in charging efficiency levels. The usage of a pin can also promote the formation of new particles, either from erosion and sputtering from the pin itself or from gaseous contaminants present in the gas (Alonso et al, 2006;Kleefsman and van Gulijk, 2008;Domat et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Evaluation of a Laboratory-made 200 nm Precut Electrical Cascade Impactor

Han

Seo

Park

et al. 2018

Aerosol Air Qual. Res.

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Increasing public concern regarding air quality has led to the development of efficient aerosol-monitoring techniques. Among the various aerosol measurement instruments based on electrical methods, in this study, an electrical cascade impactor (ECI) was designed and fabricated in our laboratory and was used to measure the real-time size distribution of submicron-sized aerosols. In the study by Park et al. (2007), it was assumed that the size distribution of incoming particles follows a unimodal lognormal distribution. However, in this study, the distribution of particles captured at each stage (including the Faraday cage) was assumed to be a unimodal lognormal distribution; hence, the incoming particles may follow any size distribution. After the particle charging characteristics were obtained for different particle sizes, experiments were performed with monodisperse test particles to determine the collection efficiency of each stage. The current measured in each stage was converted into a number based size distribution of aerosols by using the data inversion algorithm, which utilized the experimentally obtained collection efficiency. Then, a performance evaluation was performed, both in the laboratory and in the field. The results obtained by our ECI were in agreement with the scanning mobility particle sizer (SMPS) data.

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Particle charging characteristics with the low-speed mixed fluid under high electric field

et al. 2014

Sci. China Phys. Mech. Astron.

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Robust method to compare aerosol chargers

Cited by 6 publications

References 22 publications

Charging Efficiency of the Electrical Low Pressure Impactor's Corona Charger: Influence of the Fractal Morphology of Nanoparticle Aggregates and Uncertainty Analysis of Experimental Results

Charging Efficiency of the Electrical Low Pressure Impactor's Corona Charger: Influence of the Fractal Morphology of Nanoparticle Aggregates and Uncertainty Analysis of Experimental Results

Design and Performance Evaluation of a Laboratory-made 200 nm Precut Electrical Cascade Impactor

Particle charging characteristics with the low-speed mixed fluid under high electric field

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