Numerical Modelling and Simulation of Chemical Reactions in a Nano-Pulse Discharged Bubble for Water Treatment

Yuchen He; Satoshi Uehara; Hidemasa Takana; Hideya Nishiyama

doi:10.1088/1009-0630/18/9/09

Numerical Modelling and Simulation of Chemical Reactions in a Nano-Pulse Discharged Bubble for Water Treatment

Yuchen He, Satoshi Uehara, Hidemasa Takana, Hideya Nishiyama

IFS - Creative Flow Research Division

Tohoku University

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

A zero-dimensional model to simulate a nano-pulse-discharged bubble in water was developed. The model consists of gas and liquid phases corresponding to the inside and outside of the bubble, respectively. The diffusions of chemical species from the gas to the liquid phase through the bubble interface was also investigated. The initial gas is Ar, but includes a little H₂O and O₂ in the bubble. The time evolution of the OH concentration in the liquid phase was mainly investigated as an important species for water treatment. It was shown that OH was generated in the bubble and then diffused into the liquid. With the application of a continuous nano-pulse discharge, more OH radicals were generated as the frequency increased at a low voltage for a given power consumption.

Original language	English
Pages (from-to)	924-932
Number of pages	9
Journal	Plasma Science and Technology
Volume	18
Issue number	9
DOIs	https://doi.org/10.1088/1009-0630/18/9/09
Publication status	Published - 2016 Sept

Keywords

bubble discharge
chemical reaction model
diffusion
water purification

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10.1088/1009-0630/18/9/09

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abstract = "A zero-dimensional model to simulate a nano-pulse-discharged bubble in water was developed. The model consists of gas and liquid phases corresponding to the inside and outside of the bubble, respectively. The diffusions of chemical species from the gas to the liquid phase through the bubble interface was also investigated. The initial gas is Ar, but includes a little H2O and O2 in the bubble. The time evolution of the OH concentration in the liquid phase was mainly investigated as an important species for water treatment. It was shown that OH was generated in the bubble and then diffused into the liquid. With the application of a continuous nano-pulse discharge, more OH radicals were generated as the frequency increased at a low voltage for a given power consumption.",

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AU - Takana, Hidemasa

AU - Nishiyama, Hideya

PY - 2016/9

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AB - A zero-dimensional model to simulate a nano-pulse-discharged bubble in water was developed. The model consists of gas and liquid phases corresponding to the inside and outside of the bubble, respectively. The diffusions of chemical species from the gas to the liquid phase through the bubble interface was also investigated. The initial gas is Ar, but includes a little H2O and O2 in the bubble. The time evolution of the OH concentration in the liquid phase was mainly investigated as an important species for water treatment. It was shown that OH was generated in the bubble and then diffused into the liquid. With the application of a continuous nano-pulse discharge, more OH radicals were generated as the frequency increased at a low voltage for a given power consumption.

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KW - diffusion

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Numerical Modelling and Simulation of Chemical Reactions in a Nano-Pulse Discharged Bubble for Water Treatment

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