Tribo-charge and rebound characteristics of particles impact on inclined or rotating metal target

Ema, Akihiko; Yasuda, Daisuke; Tanoue, Ken‐ichiro; Masuda, Hiroaki

doi:10.1016/s0032-5910(03)00153-0

Cited by 49 publications

(17 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results are in good agreement with the work by Ema etc. [28], who investigated the effect of impact angle on the triboelectric charging. The author used an inclined target and observed that the electrostatics charge increased with the impact angle up to 60° and then decreased.…”

Section: Plate Inclined Angle Effectmentioning

confidence: 99%

Electrostatic charging of single granules by repeated sliding along inclined metal plates

Zhao¹,

Zhou²,

Ye³

et al. 2017

Journal of Electrostatics

View full text Add to dashboard Cite

In this work, repeated sliding tests for single granules were investigated for their electrostatics generation. Several factors were considered including granule length-ratio, sliding face shape, sliding times, sliding area, sliding velocity, front-facing edge, plate inclined angle and humidity. Generally, it is found that electrostatics increases with granule length-ratio. Two kinds of granular sliding face shapes were used in this work, half circle and rectangle. Under the same working conditions, a granule with the sliding face shape of half-circle tends to produce more electrostatics than that of rectangle. In addition, the efficiency of granule charge generation increases with sliding times although the amount of impact charge is decreased by the initial charge. Electrostatics increases with sliding area, which is independent of granule sliding-face shape and sliding times. Electrostatics also increases with granule sliding velocity. Front-facing sliding with a short edge tends to generate more electrostatics than that with a long edge. In this work, three sliding-plate angles were chosen as 30°,54°,70°, where granules sliding along the inclined plate at 54° acquired the highest electrostatics in comparison with other two angles. Humidity has significant effect on electrostatics as that electrostatics decreases with humidity. At lower relative humidity, the granule length-ratio is found to have more effect on electrostatics.

show abstract

Section: Plate Inclined Angle Effectmentioning

confidence: 99%

Electrostatic charging of single granules by repeated sliding along inclined metal plates

Zhao¹,

Zhou²,

Ye³

et al. 2017

Journal of Electrostatics

View full text Add to dashboard Cite

show abstract

“…The value of electrostatic charge generated at 30°inclined plate and 70°inclined plate has no significant difference We observed that the granules sliding velocity of 30°inclined plate is much lower than that of 54°inclined plate. The effect of impact angle on the triboelectric charging was also investigated by Ema [24], who used an inclined target too and observed that the electrostatic charge increased with the impact angle up to 60° and then decreased. The findings are in good agreement.…”

Section: Influence Of Plate Anglementioning

confidence: 99%

Experimental Investigation of Electrostatic Charge Generation for Granules

Zhou

Yin

et al. 2015

Procedia Engineering

View full text Add to dashboard Cite

In studies of granule electrification due to sliding, quantitatively evaluating the charging characteristic of single particles, rather than of a mass of granules as a group, is important for a fundamental understanding of the elementary tribocharging phenomenon, which is complicated, since it is resulted from electrical and physical properties of granules and operational environment conditions. In this work, charge transfer due to a single particle repeated sliding along metal plane for Polyvinyl Chloride(PVC)granules(diameter 1.1-4.1 mm, in the shape of halfcircle or rectangle). The amount of transferred charge is expressed as a function of granular shape factor, such as length-ratio, sliding area, front-facing edge, as well as sliding velocity, plane angle and relative humidity. The transferred charge increases with length-ratio and area. Front-facing edge, plane angle, sliding velocity and relative humidity do have effect on the degree of electrification.

show abstract

“…In the current measurement category, [11][12][13] the electric current flowing from the target is measured as a rate of net charge transfer from the impacted particles to the target. In the current measurement category, [11][12][13] the electric current flowing from the target is measured as a rate of net charge transfer from the impacted particles to the target.…”

Section: Impact Charging Tests Of Single Particlesmentioning

confidence: 99%

New instrument for tribocharge measurement due to single particle impacts

Watanabe

Ghadiri

Matsuyama

et al. 2007

Review of Scientific Instruments

View full text Add to dashboard Cite

During particulate solid processing, particle-particle and particle-wall collisions can generate electrostatic charges. This may lead to a variety of problems ranging from fire and explosion hazards to segregation, caking, and blocking. A fundamental understanding of the particle charging in such situations is therefore essential. For this purpose we have developed a new device that can measure charge transfer due to impact between a single particle and a metal plate. The device consists of an impact test system and two sets of Faraday cage and preamplifier for charge measurement. With current amplifiers, high-resolution measurements of particle charges of approximately 1 and 10 fC have been achieved before and after the impact, respectively. The device allows charge measurements of single particles with a size as small as approximately 100 microm impacting on the target at different incident angles with a velocity up to about 80 m/s. Further analyses of the charge transfer as a function of particle initial charge define an equilibrium charge, i.e., an initial charge level prior to impact for which no net charge transfer would occur as a result of impact.

show abstract

Tribo-charge and rebound characteristics of particles impact on inclined or rotating metal target

Cited by 49 publications

References 24 publications

Electrostatic charging of single granules by repeated sliding along inclined metal plates

Electrostatic charging of single granules by repeated sliding along inclined metal plates

Experimental Investigation of Electrostatic Charge Generation for Granules

New instrument for tribocharge measurement due to single particle impacts

Contact Info

Product

Resources

About