Electrical and Thermodynamic Characteristics of Non-transfer Arc and Electric Direct Current Plasma Torch with Air Working Gas

Document Type : Research Article

Authors

1 Shahid Beheshti University/ Laser and Plasma Research Institute

2 Laser and Plasma Research Institute, Shahid Beheshti University

3 Applied plasma physics and advanced materials, Shahid Beheshti University, Laser and Plasma Research Institute

Abstract

Industrial and research use of thermal plasma technology for a wide range of applications such as material processing, gasification, and disposing of hazardous waste. In this research, we have designed and manufactured a plasma torch for the gasification of liquid carbon-based materials. In particular, these materials must be sprayed at a certain angle into the plasma. The plasma torch is one of the components of a liquid waste gasification device, in this research, we have only studied the thermodynamic and electrical characteristics of the plasma torch. The plasma torch has been tested in two cases Finally, the electrical and thermodynamic characteristics of the plasma torch were measured and compared to each other. According to the results, the plasma torch has a maximum electrical voltage of 210 V and thermal efficiency of 86.2%. The maximum plasma enthalpy value is 21.5 MJ/kg and the maximum plasma jet temperature at the nozzle outlet is 3400 K. Plasma torch at a distance of 20 mm from the nozzle outlet has a temperature above 3000 degrees Celsius, which can be completely gasified the organic compounds and carbonaceous materials.

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References

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Amirkabir Journal of Mechanical Engineering
Volume 54, Issue 5
August 2022
Pages 1149-1166

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