Влияние режимов инжекции на горение водоугольных суспензий

М. Таскын; З.А. Мансуров; Б.Г. Топанов; З.М. Азизов; С.В. Алексеенко

doi:10.18321/cpc24(2)171-180

Authors

M. Taskyn Institute of Combustion Problems, Bogenbai Batyr Str., 172, Almaty, Kazakhstan; Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty, Kazakhstan
Z.A. Mansurov Institute of Combustion Problems, Bogenbai Batyr Str., 172, Almaty, Kazakhstan; Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty, Kazakhstan
B.G. Topanov Institute of Combustion Problems, Bogenbai Batyr Str., 172, Almaty, Kazakhstan
Z.M. Azizov Institute of Combustion Problems, Bogenbai Batyr Str., 172, Almaty, Kazakhstan
S.V. Alekseenko Kutateladze Institute of Thermophysics SB RAS, Akademika Lavrentyev Ave., 1, Novosibirsk, Russia

DOI:

https://doi.org/10.18321/cpc24(2)171-180

Keywords:

coal-water slurry, combustion, injection mode, temperature field, flame stability, decarbonization

Abstract

The influence of frontal and perpendicular injection on temperature fields and combustion stability of coal-water slurries with different compositions was investigated experimentally. The experiments were carried out using a laboratory-scale combustion setup equipped with a K-type thermocouple for temperature measurements in different flame zones. Slurries with different coal-to-water ratios were studied. The results showed that both slurry composition and injection mode significantly affect combustion temperature and flame stability. The most stable combustion was observed for the 40/60 composition, where the maximum temperature reached 1050-1080 °C. It was found that perpendicular injection provides a more uniform temperature distribution and lower temperature fluctuations compared with frontal injection. The obtained results demonstrate the potential of injection mode optimization for improving the efficiency and stability of coal-water slurry combustion.

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