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Type: Book chapter
Title: Numerical modelling of pulverised coal combustion
Author: Tian, Z.
Witt, P.
Schwarz, M.
Yang, W.
Citation: Handbook of Multiphase Flow Science and Technology, 2017 / Yeoh, G. (ed./s), Ch.14, pp.1-35
Publisher: Springer
Publisher Place: Singapore
Issue Date: 2017
ISBN: 9789814585866
Statement of
Zhao F. Tian, Peter J. Witt, Mark P. Schwarz, and William Yang
Abstract: Many thermal power generation plants rely on combustion of pulverised coal carried out in large furnaces. Design and improvement of these furnaces can be effectively assisted by using numerical modelling with Computational Fluid Dynamics (CFD) techniques to develop a detailed picture of the conditions within the furnace, and the effect of operating conditions, coal type, and furnace design on those conditions. The equations governing CFD models of pulverised coal combustion are described, with a focus on sub-models needed for devolatilisation, combustion and heat transfer. The use of the models is discussed with reference to examples of CFD modelling of brown coal fired furnaces in the Latrobe Valley in Australia and black coal fired furnaces described in the literature. Extensions to the CFD models that are required to tackle specific industrial and environmental issues are also described. These issues include control of NOx and SOx emissions and the effect of slagging and fouling on furnace and boiler operation.
Keywords: CFD; coal combustion; tangentially fired; drying model; devolatilisation model; char combustion model; NOx; soot model; turbulence model
Description: First Online: 30 September 2017
Rights: © Springer Nature Singapore Pte Ltd. 2017
RMID: 0030107818
DOI: 10.1007/978-981-4585-86-6_9-2
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Appears in Collections:Mechanical Engineering publications

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