Electron Temperature and Electron Density of Underwater Pulsed Discharge Plasma Produced by Solid-State Pulsed-Power Generator

A pulsed discharge produced underwater has been an attractive method to treat waste water. For the optimization and realization of the water treatment system utilizing underwater pulsed discharge, modeling analysis could be one of the essential works. However, there is still no simulation work about...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2007-06, Vol.35 (3), p.614-618
Main Authors: Namihira, T., Sakai, S., Yamaguchi, T., Yamamoto, K., Yamada, C., Kiyan, T., Sakugawa, T., Katsuki, S., Akiyama, H.
Format: Article
Language:English
Subjects:
Density measurement
Discharge
Discharge plasma
Electric discharges
Electrical discharge
Electricity generation
Electrodes
Electron density
Electron temperature
Electrons
Exact sciences and technology
Freshwater
Generators
Mathematical models
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma
Plasma density
Plasma measurements
Plasma simulation
Plasma temperature
Pulse generation
Pulse measurements
pulsed power
Solid state circuits
Spectrum analysis
streamer discharge
Temperature
Underwater
underwater discharge
Wastewater treatment
Water treatment
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Summary:A pulsed discharge produced underwater has been an attractive method to treat waste water. For the optimization and realization of the water treatment system utilizing underwater pulsed discharge, modeling analysis could be one of the essential works. However, there is still no simulation work about the underwater pulsed discharge due to the lack of knowledge about its characteristic parameters such as electron temperature, electron density, and so on. In this paper, the temperature and the electron density in a pulsed discharge plasma produced underwater are measured and presented. A magnetic pulse compressor (MPC) was developed and used to create the electrical discharge in water. The developed MPC is all-solid state and is, therefore, a maintenance-free generator. To define the temperature and the electron density in an underwater pulsed discharge plasma, two kinds of spectroscopic measurements, called the line-pair method and Stark broadening, were carried out. According to the experimental results, the temperature and the electron density in the pulsed discharge plasma between point-plane electrodes immersed in water are determined to be 15000 K and 10 18 /cm 3 , respectively.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2007.896965