Results of experimental studies of starting characteristics of vacuum plasma torches in glow discharge mode with switching to abnormal glow discharge and arc discharge are presented. It is demonstrated that if high-frequency current source is used parallel to direct current, ion current is increased and the time of starting mode is reduced. Experimental smelts of tantalum, tungsten, molybdenum, zirconium, and titan were carried out in operating modes with measurement of liquid metal surface temperature in relation to the supplied heating power.
This paper presents the results of computational and experimental studies of the electroplasma gasification of carbon-containing technogenic wastes to obtain high-calorific-value syngas (H
2
+ CO) for power-generating devices. The composition of the syngas produced by gasification of organic wastes was experimentally determined. The change in the composition and calorific value of the syngas depending on the gasification time of organic materials was studied. The change in the calorific value of the syngas during waste gasification is considered.
The article presents an experimental study of biomedical waste in the form of disposable masks. The study was carried out on a laboratory plasma arc installation with a capacity of 20 kg/h. During the experiments, the most important technological parameters were studied: the composition of the exhaust gases, the dependence of the exhaust gases on the temperature in the chamber of the plasma arc furnace, etc.
The paper presents the results of mathematical and experimental studies of the process of gasification of municipal solid waste in a plasma electric furnace. The energy consumption for gasification of SMW with the organic and inorganic components of morphological composition was investigated during these studies. The effect of reducing the energy consumption during waste gasification, excluding the inorganic component of SMW was also investigated. The paper presents the results of computational and experimental studies of SMW gasification and reveals the effect of the inorganic part on the energy balance of an electric plasma furnace.
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