A Large-Volume Stable Atmospheric Air Microwave Plasma Based on Inductive Coupling Window—Rectangular Resonator

Zhong, Wang; Zhang, Gui Xin; Jia, Zhi Dong

doi:10.1109/tps.2014.2319156

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…With its advantages of a wide range of working pressure [1,2], high energy conversion rate [3][4][5][6], no electrode pollution [7], high electron density and electron temperature [8], the microwave plasma torch (MPT) has become an attractive plasma source in both scientific research studies and industrial applications [9]. Especially in solid waste treatment, the MPT incineration inhibits NOx SOx generation [10][11][12][13], which is an environmentally friendly treatment [14].…”

Section: Introductionmentioning

confidence: 99%

“…Especially in solid waste treatment, the MPT incineration inhibits NOx SOx generation [10][11][12][13], which is an environmentally friendly treatment [14]. However, most of the current MPT devices have two main problems, small size of the plasma torch and narrow working range [4,[15][16][17], which are difficult to meet the requirements of industrialization.…”

Section: Introductionmentioning

confidence: 99%

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Design and Study of a Large-Scale Microwave Plasma Torch with Four Ports

Hu,

Zhang,

Han

et al. 2023

Processes

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The microwave plasma torch (MPT) has gained popularity in industrial applications due to its high energy density, ionization levels, and high temperature. However, the non-uniform and unstable plasma generated by microwave plasma sources has limited the production of large-scale MPTs. This paper proposes a novel MPT device utilizing a four-port microwave source (2.45 GHz, 4 kW) to address these issues. The improved plasma uniformity and stability are achieved through the new structure, and the microwave efficiency is enhanced by introducing the focusing dielectric in the coupled cavity. Using a 3D electromagnetic field model, microwave plasma model and fluid model, the paper optimizes the geometry and inlet mode of the MPT device. Experimental results show that the novel MPT device can generate a plasma torch with a maximum height of 545 mm, a working range of 10–95 L/min, and a microwave efficiency up to 86%. The proposed device not only competently meets industrial requirements, but also provides design ideas and methods for future MPT devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Study of a Large-Scale Microwave Plasma Torch with Four Ports

Hu,

Zhang,

Han

et al. 2023

Processes

View full text Add to dashboard Cite

show abstract

Advances of microwave plasma-enhanced chemical vapor deposition in fabrication of carbon nanotubes: a review

Liu

Zhang

et al. 2021

J Mater Sci

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A low power microwave room-temperature air plasma jet at atmospheric pressure

Zhang

Liu

et al. 2023

Applied Physics Letters

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An atmospheric pressure low power microwave-induced air plasma source at 2.45 GHz is presented in this Letter. The device was capable of self-igniting air and generating plasma with only 50 W microwave input power and without any extra trigger. Its sustaining power was as low as 10 W, and the gas temperature of plasma tail flame measured by a fiber optic thermometer was about 32 °C. Spectroscopic measurements showed strong OH(A2Σ+→X2Π) bands at 306–310 nm and oxygen atomic lines OI (3p5P → 3s5S) at 777.1 nm and OI (3p3P → 3s3S) at 844.6 nm. NO−γ(A2Σ+→X2Πr) from 200 to 300 nm was also detected in this air plasma jet. This portable plasma apparatus offers potential for air plasma applications in the biomedical fields.

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A Large-Volume Stable Atmospheric Air Microwave Plasma Based on Inductive Coupling Window—Rectangular Resonator

Cited by 5 publications

References 11 publications

Design and Study of a Large-Scale Microwave Plasma Torch with Four Ports

Design and Study of a Large-Scale Microwave Plasma Torch with Four Ports

Advances of microwave plasma-enhanced chemical vapor deposition in fabrication of carbon nanotubes: a review

A low power microwave room-temperature air plasma jet at atmospheric pressure

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