Initiation of organic coal–water fuel droplet burning in a vortex combustion chamber

Using a test bench the main part of which is a vortex combustion chamber, characteristics describing the initiation of burning of solitary droplets of a typical organic coal–water fuel (OCWF) are established. The oxidizer temperature varied in the range of 600–850 K. The linear motion velocity of th...

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Bibliographic Details
Published in:Doklady. a journal of the Russian Academy of Sciences. Physics 2017-04, Vol.62 (4), p.176-179
Main Authors: Nakoryakov, V. E., Glushkov, D. O., Strizhak, P. A., Syrodoy, S. V.
Format: Article
Language:English
Subjects:
Classical Mechanics
Combustion chambers
Mathematical and Computational Physics
Physics
Physics and Astronomy
Technical Physics
Theoretical
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Summary:Using a test bench the main part of which is a vortex combustion chamber, characteristics describing the initiation of burning of solitary droplets of a typical organic coal–water fuel (OCWF) are established. The oxidizer temperature varied in the range of 600–850 K. The linear motion velocity of the oxidizer in the vortex chamber was about 3 m/s. The configuration of the chamber and parameters of the air flow provided a stable regime of floating for droplets with a size (radius) of about 0.5 mm. The analysis results show that the intensity of initiation of OCWF combustion under conditions of processes occurring in boiler furnaces is significantly (by a factor of 2–4) higher than for droplets that are immovably fixed or freely float in the heated air flow.
ISSN:1028-3358
1562-6903
DOI:10.1134/S1028335817040152