Dynamics of Charge Transfer by Surface Electric Discharges in Atmospheric Air

Houpt, Alec; Leonov, Sergey B.

doi:10.4236/jamp.2015.38132

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…The reason is that the output voltage of the amplifying multiple circuit is not increased further as discussed above. The charge of the water droplet decreases with the increase of the distance between the nozzle and Cu electrode (see figure 3(f)), which may be the result of the charge dissipation into the air [37]. As the flow rate increases, the charge of a water droplet decreases, as shown in figure 3(g).…”

Section: Maximization Of Water Droplet Chargementioning

confidence: 93%

The water droplet with huge charge density excited by triboelectric nanogenerator for water sterilization

Luo

Shang

et al. 2021

Nanotechnology

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Water is one of the most essential resources for the survival of human beings and all other living things. For the point of daily use, water sterilization has enormous social and economic significance, especially for remote and undeveloped areas. Here, we developed a self-powered water sterilization device, which consists of a rotating-disk freestanding triboelectric-layer mode triboelectric nanogenerator (RF-TENG), a voltage-multiplying circuit, and a water droplet control system. The output voltage of the RF-TENG is boosted by a voltage-multiplying circuit and then utilized to charge water droplet. When the rotation rate of the RF-TENG is 300 rpm, the output voltage of a six-fold voltage-multiplying circuit can reach 9319 V, and a 62.50 μl water droplet can be positively charged to 6320 nC at the flow rate of 0.31 ml min−1. The charge density and electric filed of the water droplet can reach 101.12 nC μl−1 and 11.28 kV cm−1, respectively. The charged water droplet can kill E. coli and S. aureus quickly and efficiently through electroporation mechanism. With the advantages of low cost, simple in fabrication and usage, portability, and etc, the self-powered water sterilization device has wide application prospects in remote and undeveloped areas.

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Section: Maximization Of Water Droplet Chargementioning

confidence: 93%

The water droplet with huge charge density excited by triboelectric nanogenerator for water sterilization

Luo

Shang

et al. 2021

Nanotechnology

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show abstract

“…And the width of the grounded electrode is in agreement with the discharge gap between the two HV electrodes. In order to analyse the evolution of residual surface charge, three surface charge sensors with insulation film are inserted into the position between the dielectric and the grounded electrode [36]. Three surface charge sensors are made of rectangular aluminium foil characterized with dimensions x � y � z = 2 � 70 � 0.1 mm.…”

Section: Experimental Set-upmentioning

confidence: 99%

Streamer dynamics and charge self‐erasing of two counter‐propagating plasmas in repetitively pulsed surface dielectric barrier discharge

et al. 2022

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The streamer dynamics and charge self‐erasing of two counter‐propagating plasmas generated by repetitively pulsed surface dielectric barrier discharge are investigated using electrical and optical diagnosis, and a two‐dimensional fluid model. Three distinct discharge phases of primary, transitional and secondary streamers are identified in a single‐pulse discharge through the time‐resolved plasma images. Moreover, a merging phenomenon of the two opposing primary streamers is observed at the middle position of the discharge gap. Compared to the first pulse, a low streamer propagation velocity of the primary streamer is measured during the subsequent discharge process due to the limitation of residual surface charges left by the previous discharge. No significant differences of the transferred charge and the deposited energy are obtained in the sequential pulses at a discharge gap of 9 mm. Numerical simulations show that a reduction for the plasma intensity of the approached two primary streamers is attributed by the accumulated charge on the dielectric surface and gathered positive charges in the streamer head. Numerical and experimental studies indicate that the residual charges can be erased by the secondary streamer through the drifted electrons, namely that a phenomenon of charge self‐erasing can be realized in the individual pulse.

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Low-frequency polarization and gas discharge plasma pinching in scientific and technological applications

Medvedev

Pinaev

Barnyakov

2019

AIP Conference Proceedings

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Dynamics of Charge Transfer by Surface Electric Discharges in Atmospheric Air

Cited by 4 publications

References 20 publications

The water droplet with huge charge density excited by triboelectric nanogenerator for water sterilization

The water droplet with huge charge density excited by triboelectric nanogenerator for water sterilization

Streamer dynamics and charge self‐erasing of two counter‐propagating plasmas in repetitively pulsed surface dielectric barrier discharge

Low-frequency polarization and gas discharge plasma pinching in scientific and technological applications

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