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Registration Number

0223U000540, 0121U109130 , R & D reports

Title

The research of physical characteristics for the barrierless plasma-chemical reactors and CDI systems, and their practical application

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Head

Taran Hryhorii Vitaliiovych, к.т.н.

Registration Date

11-01-2023

Organization

National Science Center "Kharkiv Institute of Physics and Technology"

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 The object of the research is the combined high-voltage power supply of barrier-free plasma chemical reactors to increase efficiency and continue their uninterrupted operation due to the application of a much lower constant voltage between high-voltage discharge pulses. The purpose of the work is to determine the conditions for cleaning the discharge gap from negative ions that shield the cathode and reduce the intensity of the electric field near it, due to their drift and diffusion in a larger field or for a longer time. When using a bias voltage, the development of the discharge process approaches that observed in the first pulse, when the appropriate voltage is applied to the gap free of charged particles. The main scientific results are as follows: - it was theoretically shown for the first time that when the discharge voltage is applied, after long-term application of large values of the bias voltage, the time delay between the start of the application of the discharge voltage and the full current reaching its peak value is very small, and the peak value of the full current practically does not depend on the value bias voltage in the previous interval of constant voltage and the duration of that interval. - for the first time in the experiments, the influence of the constant component of the supply voltage on the characteristics of a barrier-free discharge in atmospheric air and oxygen-enriched air was investigated. The dependence of the ignition voltage of the discharge on the frequency of high-voltage pulses and its relationship with the level of the constant component of the supply voltage was revealed. The relationship between the value of the ignition voltage of the negative corona and the amount of ozone in one high voltage pulse is shown.

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Kudin Dmytro Viсtorovich
Ostroushko Volodimir Mikolayovich
Taran Grygorij Vitaliyovich