MODELING FLAME PROPAGATION OF COAL DUST CLOUD COMBUSTION IN HETEROGENEOUS ENVIRONMENT

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BIDABADI MEHDI; Mohammadi Moein; Bidokhti Shafagh M.; Yousefi Sina H.; Poorfar Alireza K.

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Seminar Paper

Paper Information

Seminar: FUEL AND COMBUSTION CONFERENCE OF IRAN
Year:2014 | Issue:5

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Title

MODELING FLAME PROPAGATION OF COAL DUST CLOUD COMBUSTION IN HETEROGENEOUS ENVIRONMENT

Author(s)

BIDABADI MEHDI | Mohammadi Moein | Bidokhti Shafagh M. | Yousefi Sina H. | Poorfar Alireza K.

Keywords

COAL DUST CLOUD

DISCRETE COMBUSTION

FLAME PROPAGATION SPEED

MINIMUM IGNITION ENERGY

Abstract

IN THE PRESENT WORK, COMBUSTION OF A QUIESCENT COAL DUST CLOUD HAS BEEN STUDIED IN THE MEDIA WITH SPATIALLY DISCRETE SOURCES BY MEANS OF NUMERICAL APPROACH. THE THERMAL MODEL HAS BEEN GENERATED TO ESTIMATE THE FLAME PROPAGATION SPEED WITH VARIOUS DUST CONCENTRATION IN AIR. OXYGEN AND NITROGEN HAVE BEEN CONSIDERED AS THE MAIN OXIDIZER AND THE INERT GAS, RESPECTIVELY. THE MODEL USES DISCRETE HEAT SOURCES TO ANALYZE DUST COMBUSTION OF COAL PARTICLES WITH THE DIAMETER OF 50 MM WITHOUT CONSIDERING THE VOLATILE MATTER. THE BURNING PROCESS IS SUPPOSED TO BE OF DIFFUSION TYPE FOR OBTAINING BURNING TIME. FLAME SPEED AS A FUNCTION OF PARTICLE DIAMETER HAS BEEN STUDIED. FURTHERMORE, MINIMUM IGNITION ENERGY AS A FUNCTION OF DUST CONCENTRATION FOR DIFFERENT PARTICLE SIZES HAS BEEN STUDIED. REASONABLE AGREEMENT BETWEEN THE NUMERICAL SOLUTION OF MICRON SIZED COAL DUST CLOUD COMBUSTION AND EXPERIMENTAL DATA WAS OBTAINED IN TERMS OF FLAME PROPAGATION SPEED AND MINIMUM IGNITION ENERGY.

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APA: Copy

BIDABADI, MEHDI, Mohammadi, Moein, Bidokhti, Shafagh M., Yousefi, Sina H., & Poorfar, Alireza K.. (2014). MODELING FLAME PROPAGATION OF COAL DUST CLOUD COMBUSTION IN HETEROGENEOUS ENVIRONMENT. FUEL AND COMBUSTION CONFERENCE OF IRAN. SID. https://sid.ir/paper/923354/en

Vancouver: Copy

BIDABADI MEHDI, Mohammadi Moein, Bidokhti Shafagh M., Yousefi Sina H., Poorfar Alireza K.. MODELING FLAME PROPAGATION OF COAL DUST CLOUD COMBUSTION IN HETEROGENEOUS ENVIRONMENT. 2014. Available from: https://sid.ir/paper/923354/en

IEEE: Copy

MEHDI BIDABADI, Moein Mohammadi, Shafagh M. Bidokhti, Sina H. Yousefi, and Alireza K. Poorfar, “MODELING FLAME PROPAGATION OF COAL DUST CLOUD COMBUSTION IN HETEROGENEOUS ENVIRONMENT,” presented at the FUEL AND COMBUSTION CONFERENCE OF IRAN. 2014, [Online]. Available: https://sid.ir/paper/923354/en

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