Numerical modeling of the aerodynamics, heat exchange, and combustion of a polydisperse ensemble of coke-ash particles in ascending axisymmetric two-phase flow

Journal Article · Wed Jul 15 00:00:00 EDT 2009 · Journal of Engineering Physics and Thermophysics (English Translation of Inzhenerno-Fizicheskii Zhurnal)

DOI:https://doi.org/10.1007/s10891-009-0249-y· OSTI ID:21240510

Rokhman, B B ^[1]

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1. National Academy of Sciences of Ukraine, Kiev (Ukraine). Institute of Coal Power Technologies

A two-dimensional stationary model of motion, heat and mass exchange, and chemical reaction of polydisperse coke and ash particles in ascending gas-suspension flow has been constructed with allowance for the turbulent and pseudo turbulent mechanisms of transfer in the dispersed phase. The system of equations that describes motion and heat transfer in the solid phase has been closed at the level of the equations for the second moments of velocity and temperature pulsations, whereas the momentum equations of the carrying medium have been closed using the equation for turbulent gas energy, which allows for the influence of the particles and heterogeneous reactions.

• OSTI ID: 21240510
• Journal Information: Journal of Engineering Physics and Thermophysics (English Translation of Inzhenerno-Fizicheskii Zhurnal), Vol. 82, Issue 4; Other Information: TN: Translated of Inzhenerno-Fizicheskii Zhurnal; 82(4), 767-779 (Jul-Aug 2009); Related Information: Translated of Inzhenerno-Fizicheskii Zhurnal; 82(4), 767-779 (Jul-Aug 2009); ISSN 1062-0125
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COMBUSTION
COKE
TWO-PHASE FLOW
HEAT TRANSFER
PARTICLES
MATHEMATICAL MODELS
DISPERSIONS
TURBULENCE
VELOCITY
AERODYNAMICS
ASHES
MIXTURES
MASS TRANSFER
TURBULENT FLOW
TWO-DIMENSIONAL CALCULATIONS