Investigation of parameters of the three phase high-voltage alternating current plasma generator with power up to 100 kW working on steam

Rutberg, P.G.; Lukyanov, Sergey; Kiselev, A. I.; Kuschev, Sergey A.; Nakonechny, Gh V; Никонов, А. А.; Popov, Sergey; Serba, E O; Spodobin, V A; Суров, А. В.

doi:10.1088/1742-6596/275/1/012006

Cited by 9 publications

(2 citation statements)

References 7 publications

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“…Some non-transferred 3-phase AC plasma torches used for waste, biomass or coal processing have been described by the IEEP team (Institute for Electrophysics and Electric PowerRussian academy of sciences) in several papers [32,85,86,[105][106][107][108][109][110][111][112]. The electrodes consist of water-cooled copper tubes, and the movement of the arc attachment using the self-magnetic field of the current in the electrodes (rail gun effect) minimizes erosion.…”

Section: Ac Torchesmentioning

confidence: 99%

Waste Gasification by Thermal Plasma: A Review

Fabry

Rehmet

Rohani

et al. 2013

Waste Biomass Valor

229

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waste gasification processes based on thermal plasma (DC or AC plasma torches) at lab scale versus typical performances of waste autothermal gasification: LHV of the syngas, cold gas efficiency and net electrical efficiency. In the last part, a review has been done on the various torch technologies used for waste gasification by plasma at industrial scale, the major companies on this market and the perspectives of the industrial development of the waste gasification by thermal plasma. The main conclusions are that plasma technology is considered as a highly attractive route for the processing of waste-to-energy and can be easily adapted to the treatment of various wastes (municipal solid wastes, heavy oil, used car tires, medical wastes …). The high enthalpy, the residence time and high temperature in plasma can advantageously improve the conditions for gasification, which are inaccessible in other thermal processes and can allow reaching, due to low tar content in the syngas, better net electrical efficiency than autothermal processes.

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Section: Ac Torchesmentioning

confidence: 99%

Waste Gasification by Thermal Plasma: A Review

Fabry

Rehmet

Rohani

et al. 2013

Waste Biomass Valor

229

View full text Add to dashboard Cite

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“…Generally, the extension of operating life is achieved by reducing arc current, selecting optimal electrode material and its structure, moving arc attachment by the forces (gas, magnetic and aeromagnetic), using shielding gas, etc. [16][17][18][19][20][21]. Meanwhile, thermal plasma torch of high powers may still undergo a higher erosion rate as high current is the most common design to increase the power.…”

Section: Introductionmentioning

confidence: 99%

Thermal Plasma Treatment of Medical Waste

Cai

2020

Plasma Chem Plasma Process

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The harmless treatments of medical waste have significantly drawn people's attention owing to their risks to health-care staff, the public, and the environment. The traditional thermal technology for processing medical waste may cause indispensable secondary pollution such as dioxin, furan, and heavy metals, and infectious materials that may remain in the solid residual. Thermal plasma technologies offer advantages of effectively treating medical waste due to its high temperature and energy density, lower pollutant emissions, rapid start-up and shutdown , and smaller size of the installation. These benefits play roles in the treatment of medical waste on-site or off-site, especially when somewhere encounters an abnormally sharp increase in medical waste. This paper mainly introduces the typical thermal plasma processes of medical waste and its central component, plasma furnace. Meanwhile, how process parameters influence the formed gaseous and solid products, the performances of mass and volume reduction, pathogen destruction, and energy recovery, are discussed in detail. Finally, the mechanism of the thermal plasma process is also analyzed.

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3D Unsteady State MHD Modeling of a 3-Phase AC Hot Graphite Electrodes Plasma Torch

Rehmet

Rohani

Cauneau

et al. 2013

Plasma Chem Plasma Process

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International audienceWe present, in this paper, the magnetohydrodynamic (MHD) modeling of a three-phase plasma torch. The MHD equations are solved using CFD software Code Saturne®, a computational fluid dynamics software which is based on colocated finite volume. The model developed is 3-D, time dependent, and assumes Local Thermodynamic Equilibrium (LTE). Regarding numerical issues, the modeling of the three-phase AC discharge is particularly tricky since the arcs ignition, by the rotating electrical potential, is relative to the electron density of the electrode gap middle. However, despite these challenging difficulties, the numerical model has been successfully implemented by a LTE assumption. After a detailed description of the model, the results are presented, analyzed, and discussed. The influence of current and nitrogen flow rate over the arc characteristics are studied in terms of temperature, arc behavior (position and motion), velocity and electrical potential. The model gave significant information on parameters that could hardly be obtained experimentally. This study has shown the strong influence of the electrode jets on the overall arc and flow behavior. This work is likely to open the way toward a better understanding of three-phase discharges, which technologies are currently encountering an important development in many application fields

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Investigation of parameters of the three phase high-voltage alternating current plasma generator with power up to 100 kW working on steam

Cited by 9 publications

References 7 publications

Waste Gasification by Thermal Plasma: A Review

Waste Gasification by Thermal Plasma: A Review

Thermal Plasma Treatment of Medical Waste

3D Unsteady State MHD Modeling of a 3-Phase AC Hot Graphite Electrodes Plasma Torch

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