This article is cited in 5 papers

Studying the flow structure in a promising vortex furnace

S. V. Alekseenko, I. S. Anufriev, E. Yu. Shadrin, O. V. Sharypov

S.S. Kutateladze Institute of Thermophysics, Siberian Division of the Russian Academy of Sciences

Abstract: The internal aerodynamics of isothermal laboratory model of improved four-vortex furnace of pulverized coal boiler are experimentally investigated. Using the particle image velocimetry method, the distribution of components of the air flow averaged velocity and the streamlines are obtained in a number of model cross sections for different operating modes of the furnace, determined by the ratio of the flow velocities supplied through the primary and secondary nozzles. The conditions for the formation of a stable flow structure with four symmetric conjugate vortices in the entire volume of the furnace, as well as the range of operating parameters leading to a spatially irregular vortex structure are determined.

Keywords: four-vortex furnace, isothermal model, internal aerodynamics, particle image velocimetry.

Received: 16.07.2019
Revised: 16.07.2019
Accepted: 06.08.2019

DOI: 10.21883/PJTF.2019.22.48646.17984

 English version: Technical Physics Letters, 2019, 45:11, 1148–1151

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