A comparison of various models in predicting ignition delay in single-particle coal combustion

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Publication Type pre-print
School or College College of Engineering
Department Chemical Engineering
Creator Sutherland, James Clayton
Other Author Goshayeshi, Babak
Title A comparison of various models in predicting ignition delay in single-particle coal combustion
Date 2014-01-01
Description In this paper, individual coal particle combustion under laminar conditions is simulated using models with various levels of complexity for the particle and gas phase chemical kinetics. The mass, momentum and energy governing equations are fully coupled between the particle and the gas phase. In the gas phase, detailed chemical kinetics based on GRI3.0 and infinitely-fast chemistry are considered and compared. For the particle phase, models for vaporization, devolatilization and char oxidation/gasification are considered, and the Kobayashi-Sarofim devolatilization model is compared to the Chemical Percolation Devolatilization (CPD) model. Ignition delay is used as a quantitative metric to compare the simulation prediction with experimental data, with careful attention given to the definition of ignition delay in the simulations. The effects of particle size, coal type and gas-phase temperature on the ignition delay are studied and compared with experimental data.
Type Text
Publisher Elsevier
Language eng
Bibliographic Citation Goshayeshi, B., & Sutherland, J. C. (2014). A comparison of various models in predicting ignition delay in single-particle coal combustion, Combustion and Flame, 1-27.
Rights Management (c) Elsevier ; Authors manuscript from Goshayeshi, B., & Sutherland, J. C. (2014). A comparison of various models in predicting ignition delay in single-particle coal combustion, Combustion and Flame. http://dx.doi.org/10.1016/j.combustflame.2014.01.010
Format Medium application/pdf
Format Extent 3,784,938 bytes
Identifier uspace,18470
ARK ark:/87278/s60g6v73
Setname ir_uspace
Date Created 2014-04-07
Date Modified 2014-04-07
ID 712121
Reference URL https://collections.lib.utah.edu/ark:/87278/s60g6v73
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