Application of ultrasound in activation technology preflame composite fuels

Authors

  • О. В. Кравченко A. N. Podgorny Institute for Mechanical Engineering Problems of NAS of Ukraine, Ukraine
  • А. И. Глинько A. N. Podgorny Institute for Mechanical Engineering Problems of NAS of Ukraine, Ukraine https://orcid.org/0000-0003-1525-9050

Keywords:

composite fuel, before the fiery activation, ultrasound

Abstract

The article is devoted to experimental studies to determine the feasibility and appropriateness of applying ultrasound for activation preflame dust fuels. In order to determine the effectiveness of ultrasound on the fuel composition (including powdered), created an experimental stand, which investigated the effect of ultrasonic oscillations on pulverized coal. Found that ultrasound disperses the pulverized coal fuel, providing the maximum effect on the fraction size of which ranges from 140 to 640 microns. These results show that sonication under certain conditions leads to the increase in the specific surface area of the pulverized fuel, its mechanochemical activation. This effect is suggested to use in devices preflame activation and atomization of fuel in order to improve energy and ecological indicators of thermal generation plants. An experimental stand and describes a method allowing to carry out comparative studies of all construction materials, including multi-layer, in order to determine their ability to transmit ultrasonic vibrations with minimal losses.

Author Biography

О. В. Кравченко, A. N. Podgorny Institute for Mechanical Engineering Problems of NAS of Ukraine

PhD, Senior Research

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Published

2014-12-30

Issue

Vol. 17 No. 4 (2014)

Section

High technologies in mechanical engineering

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Copyright (c) 2015 О. В. Кравченко, А. И. Глинько

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