Electrical model and experimental analysis of a double spiral structure surface dielectric barrier discharge

Simin ZHOU (周思敏); Xiutao HUANG (黄修涛); Minghai LIU (刘明海)

doi:10.1088/2058-6272/ab0814

Plasma Science and Technology > 2019 > 21(6): 65401-065401. > DOI: 10.1088/2058-6272/ab0814

Simin ZHOU (周思敏), Xiutao HUANG (黄修涛), Minghai LIU (刘明海). Electrical model and experimental analysis of a double spiral structure surface dielectric barrier discharge[J]. Plasma Science and Technology, 2019, 21(6): 65401-065401. DOI: 10.1088/2058-6272/ab0814

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Electrical model and experimental analysis of a double spiral structure surface dielectric barrier discharge

School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China

Funds: This work is supported by National Natural Science Foundation of China (No. 11575066).

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Received Date: November 04, 2018

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Abstract

Abstract

A surface dielectric barrier discharge (SDBD) can discharge at atmospheric pressure and produce a large area of low-temperature plasma. An SDBD plasma reactor based on the double spiral structure is introduced in this paper. To study the discharge mechanism of SDBD, an equivalent circuit model was proposed based on the analysis of the micro-discharge process of SDBD. Matlab/Simulink is used to simulate and compare the voltage–current waves, Lissajous and discharge power with the experimental results. The consistency of the results verifies the validity of the SDBD equivalent circuit model. Maxwell software based on the finite elements method is used to analyze the electrostatic field distribution of the device, which can better explain the relationship between the discharge image and the electrostatic field distribution. The combination of equivalent circuit simulation and electrostatic field simulation can provide better guidance for optimizing a plasma generator. Finally, the device is used to treat PM2.5 and formaldehyde. The test results show that the degradation rate of PM2.5 can reach 78% after 24 min, and formaldehyde is about 31.5% after 10 min of plasma treatment.
- surface dielectric barrier discharge (SDBD),
- electrical model,
- electrostatic field simulation,
- air pollutant

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References (24)

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