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In the work, the influence of the electric force from the external electric field on the charged dispersed particles in the flame was evaluated. It is assumed that changes in the effect of the field on the combustion rate in the presence of dispersed additives in the gas phase take place due to the heat flux into the burning polymer condensed phase...
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... oxidizing agent (gaseous oxygen) is blown through. Electrodes for an electric field generating are arranged: the first is outside (around) the external fuel block, the second (in the form of a metal rod) along the internal block axis. With this configuration, the internal fuel block acts as an insulator and sacrificial coating for the electrode ( Fig. 1) [3]. In the experiments, we used fuel blocks of the following compositions: external fuel block is made of polymethylmethacrylate (PMMA); internal -polyethylene (PE) with a dispersed additives (iron oxide). The compositions of the internal blocks are the following: PE, PE + 20% dispersed additives, PE + 40% dispersed additives, PE + ...
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Citations
Polymers combustion in high-enthalpy flows is realized in many power plants. This process is energetically favorable, but there are also significant problems, the main of which is the low combustion rate.
An effective method to increase the condensed component regression rate is the imposition of an electrostatic field on the polymer, the polymer reaction layer, and the combustion zone. The paper proposes a physical and mathematical model of the electrostatic field influence on the PMMA combustion rate in high-enthalpy flows. The combustion rate values calculated within the described model coincide with the experimental results within the error.
