The impact of cavitation-activated water on combustion dynamics and environmental characteristics of coal-water slurry fuel

O. P. Stebeleva, L. V. Kashkina, E. A. Petrakovskaya, S. L. Nikitin, T. R. Valiullin

Research output: Contribution to journalConference article

Abstract

Among the new coal technologies the burning of low-grade coal in the form of coal-water slurry fuel (CWSF) is of a great interest. The basis of CWSF is a highly concentrated coal-water slurry consisting of finely ground coal, water or other liquid and plasticizing agents. The development of CWSF technology is highly relevant for solving global problems of resource conservation and ecology. The study is dedicated to CWSF properties with respect to Kansk-Achinsk coal and water. This paper presents the results of the influence of CWSF's preliminary cavitation water treatment on the combustion dynamics of fuel, (including the features of the combustion temperature trends, delayed ignition time and time of complete combustion) and on its environmental characteristics. A rotary-type hydrodynamic oscillator at high angular velocity (10000 rpm) was used in supercavitation mode. It is shown that the technology of cavitation water treatment leads to a change in the dynamics of CWSF's combustion and to an additional decrease in NOx emissions by 1.6 times, CO2 by 1.3 times.

Original languageEnglish
Article number062056
JournalIOP Conference Series: Materials Science and Engineering
Volume537
Issue number6
DOIs
Publication statusPublished - 25 Jun 2019
EventInternational Workshop on Advanced Technologies in Material Science, Mechanical and Automation Engineering - MIP: Engineering-2019 - Krasnoyarsk, Russian Federation
Duration: 4 Apr 20196 Apr 2019

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Coal
Cavitation
Water
Water treatment
Angular velocity
Ecology
Ignition
Conservation
Hydrodynamics
Liquids

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

The impact of cavitation-activated water on combustion dynamics and environmental characteristics of coal-water slurry fuel. / Stebeleva, O. P.; Kashkina, L. V.; Petrakovskaya, E. A.; Nikitin, S. L.; Valiullin, T. R.

In: IOP Conference Series: Materials Science and Engineering, Vol. 537, No. 6, 062056, 25.06.2019.

Research output: Contribution to journalConference article

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