Analysis of Combustion of Coal-Water Fuel in Low-Power Hot-Water Boiler via Numerical Modeling and Experiments

S. V. Alekseenko, V. A. Kuznetsov, L. I. Mal’tsev, A. A. Dekterev, M. Yu Chernetskii

Результат исследований: Материалы для журналаСтатья

Выдержка

The paper presents an experimental and computational study of various regimes of firing coal-water fuel in a low-power hot-water boiler that enable both dry and liquid slag removal. The experimental studies were carried out on a pilot industrial boiler adapted for firing coal-water fuel. The fuel was prepared using flotation products of beneficiation of K grade hard coal. The experiments were accompanied by numerical modeling of combustion processes. The mathematical model includes description of the carrier phase motion (based on the RANS approach with the two-parameter Menter SST k-ω turbulence model), radiation transfer (based on the P1 approximation of the spherical harmonics method for a two-phase two-temperature gray medium), particle motion (based on the Lagrange approach), and gas phase combustion (based on a combination of the kinetic model of combustion of gas components with the vortex break model). The physico-mathematical model was tested on the problem of combustion of coal-water fuel (CWF). One of the goals of the work was verification of a complex mathematical model. A comparative analysis of the results of the numerical modeling and experimental data showed that the model reliably described the process of burning in a combustion chamber. An advanced design of hot-water boiler enabling regimes of both dry and liquid slag removal was investigated. The chamber was shown to provide the necessary conditions for firing CWF in terms of reliability and economy.

Язык оригиналаАнглийский
Страницы (с-по)177-189
Число страниц13
ЖурналJournal of Engineering Thermophysics
Том28
Номер выпуска2
DOI
СостояниеОпубликовано - 1 апр 2019
Опубликовано для внешнего пользованияДа

Отпечаток

boilers
Numerical Modeling
Combustion
coal
Boilers
Numerical Experiment
Coal
Water
water
mathematical models
Mathematical models
Experiments
slags
Slags
Mathematical Model
beneficiation
Beneficiation
Anthracite
Liquid
anthracite

ASJC Scopus subject areas

  • Environmental Engineering
  • Modelling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Цитировать

Analysis of Combustion of Coal-Water Fuel in Low-Power Hot-Water Boiler via Numerical Modeling and Experiments. / Alekseenko, S. V.; Kuznetsov, V. A.; Mal’tsev, L. I.; Dekterev, A. A.; Chernetskii, M. Yu.

В: Journal of Engineering Thermophysics, Том 28, № 2, 01.04.2019, стр. 177-189.

Результат исследований: Материалы для журналаСтатья

Alekseenko, S. V. ; Kuznetsov, V. A. ; Mal’tsev, L. I. ; Dekterev, A. A. ; Chernetskii, M. Yu. / Analysis of Combustion of Coal-Water Fuel in Low-Power Hot-Water Boiler via Numerical Modeling and Experiments. В: Journal of Engineering Thermophysics. 2019 ; Том 28, № 2. стр. 177-189.
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