Aerodynamic Characteristics of the Combustion Process of Sawdust in a Vortex Furnace with Counter-Swirling Flows

The aim of this work is to study the working processes of burning the low-quality fuels, namely, the saw dust in the swirling-type furnaces with an opposite twisted motion of the air. The goal was achieved using the physical and mathematical modeling of the flows interaction. The article presented t...

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Autores principales:	Dzhyoiev R.L., Redko A.A., Redko I.A., Pivnenko Yu.A., Burda Yu.A., Gvozdetskii A.V., Alforov S.A.
Formato:	article
Lenguaje:	EN RO RU
Publicado:	Academy of Sciences of Moldova 2021
Materias:	burning of fuel swirling-type furnace particle motion distribution of pressures in furnace rate of fuel-air mixture. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/4f040eecc1a642d49f4fb89e94b1eafa
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id	oai:doaj.org-article:4f040eecc1a642d49f4fb89e94b1eafa
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spelling	oai:doaj.org-article:4f040eecc1a642d49f4fb89e94b1eafa2021-11-26T14:14:55ZAerodynamic Characteristics of the Combustion Process of Sawdust in a Vortex Furnace with Counter-Swirling Flows10.52254/1857-0070.2021.4-52.071857-0070https://doaj.org/article/4f040eecc1a642d49f4fb89e94b1eafa2021-11-01T00:00:00Zhttps://journal.ie.asm.md/assets/files/07_04_52_2021.pdfhttps://doaj.org/toc/1857-0070The aim of this work is to study the working processes of burning the low-quality fuels, namely, the saw dust in the swirling-type furnaces with an opposite twisted motion of the air. The goal was achieved using the physical and mathematical modeling of the flows interaction. The article presented the results of numerical study of aerodynamic characteristics of burning the saw dust in the swirling-type furnace with the opposite twisted air flows. For the research, the facility was used for the saw dust burning with the air supply into the lower and upper zones of burning. The most essential result of the work was modeling of the working process at the ratio of the flows of the primary air and secondary air without the fuel admixture, equal to 0.2. The tangential rate of the flow changed according to the horizontal sections from 3-5 m/s to 40-42 m/s and with respect to the furnace height from 51 m/s to 30 m/s. The average angular rate of the mixture changed relatively the furnace height in the ranges of 171-500 l/s to 100—300 l/s. The significance of the results obtained consists in determination of the possibility of increasing the efficiency of the work of the furnace facilities at the expense of the introduction of the primary and secondary air flows. In this situation, the optimal ratio of consumptions of primary and secondary air was 0.2. Thus, in this work the consumption of primary air was 1.285 kg/s, the consumption of the secondary air was 0.255 kg/s.Dzhyoiev R.L.Redko A.A.Redko I.A.Pivnenko Yu.A.Burda Yu.A.Gvozdetskii A.V.Alforov S.A.Academy of Sciences of Moldovaarticleburning of fuelswirling-type furnaceparticle motiondistribution of pressures in furnacerate of fuel-air mixture.Electrical engineering. Electronics. Nuclear engineeringTK1-9971Production of electric energy or power. Powerplants. Central stationsTK1001-1841Renewable energy sourcesTJ807-830ENRORUProblems of the Regional Energetics, Vol 4(52), Iss 4, Pp 68-78 (2021)
institution	DOAJ
collection	DOAJ
language	EN RO RU
topic	burning of fuel swirling-type furnace particle motion distribution of pressures in furnace rate of fuel-air mixture. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830
spellingShingle	burning of fuel swirling-type furnace particle motion distribution of pressures in furnace rate of fuel-air mixture. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830 Dzhyoiev R.L. Redko A.A. Redko I.A. Pivnenko Yu.A. Burda Yu.A. Gvozdetskii A.V. Alforov S.A. Aerodynamic Characteristics of the Combustion Process of Sawdust in a Vortex Furnace with Counter-Swirling Flows
description	The aim of this work is to study the working processes of burning the low-quality fuels, namely, the saw dust in the swirling-type furnaces with an opposite twisted motion of the air. The goal was achieved using the physical and mathematical modeling of the flows interaction. The article presented the results of numerical study of aerodynamic characteristics of burning the saw dust in the swirling-type furnace with the opposite twisted air flows. For the research, the facility was used for the saw dust burning with the air supply into the lower and upper zones of burning. The most essential result of the work was modeling of the working process at the ratio of the flows of the primary air and secondary air without the fuel admixture, equal to 0.2. The tangential rate of the flow changed according to the horizontal sections from 3-5 m/s to 40-42 m/s and with respect to the furnace height from 51 m/s to 30 m/s. The average angular rate of the mixture changed relatively the furnace height in the ranges of 171-500 l/s to 100—300 l/s. The significance of the results obtained consists in determination of the possibility of increasing the efficiency of the work of the furnace facilities at the expense of the introduction of the primary and secondary air flows. In this situation, the optimal ratio of consumptions of primary and secondary air was 0.2. Thus, in this work the consumption of primary air was 1.285 kg/s, the consumption of the secondary air was 0.255 kg/s.
format	article
author	Dzhyoiev R.L. Redko A.A. Redko I.A. Pivnenko Yu.A. Burda Yu.A. Gvozdetskii A.V. Alforov S.A.
author_facet	Dzhyoiev R.L. Redko A.A. Redko I.A. Pivnenko Yu.A. Burda Yu.A. Gvozdetskii A.V. Alforov S.A.
author_sort	Dzhyoiev R.L.
title	Aerodynamic Characteristics of the Combustion Process of Sawdust in a Vortex Furnace with Counter-Swirling Flows
title_short	Aerodynamic Characteristics of the Combustion Process of Sawdust in a Vortex Furnace with Counter-Swirling Flows
title_full	Aerodynamic Characteristics of the Combustion Process of Sawdust in a Vortex Furnace with Counter-Swirling Flows
title_fullStr	Aerodynamic Characteristics of the Combustion Process of Sawdust in a Vortex Furnace with Counter-Swirling Flows
title_full_unstemmed	Aerodynamic Characteristics of the Combustion Process of Sawdust in a Vortex Furnace with Counter-Swirling Flows
title_sort	aerodynamic characteristics of the combustion process of sawdust in a vortex furnace with counter-swirling flows
publisher	Academy of Sciences of Moldova
publishDate	2021
url	https://doaj.org/article/4f040eecc1a642d49f4fb89e94b1eafa
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Aerodynamic Characteristics of the Combustion Process of Sawdust in a Vortex Furnace with Counter-Swirling Flows

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