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This work presents the results of a numerical study of the working processes of burning lignite in a vortex furnace with swirling countercurrent flows. The results of computer simulation of the processes of burning lignite with a moisture content of 30%, an ash content of 20% and 35% and a higher calorific value of Qрв = 13.9 MJ/kg and 9.7 MJ/kg, respectively are given. The fields of temperature distribution,...
The numerical simulation results of the thermal scheme of a power plant related to steam and organic cycles are presented. The rational parameters of the cycles of the geothermal energy conversion unit have been determined. In addition, various organic working fluids are studied. The rational parameters of the thermodynamic cycles at a geothermal fluid temperature of 250°C have also been defined.
The results of a numerical analysis of the parameters of a radiant heating system with radiating panels are presented. The effect of the shape and dimensions of the panel, surface material and the presence of thermal insulation are numerically investigated. It is found that the device of re-radiating panels reduces the surface temperature to 450-500°C, but the increase in the surface area of the radiator...
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