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Title: Coal Particle Devolatilization and Soot Formation in Pulverized Coal Combustion Fields
Authors: Hashimoto, Nozomu
Hayashi, Jun  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-2995-0483 (unconfirmed)
Author's alias: 橋本, 望
林, 潤
Keywords: coal combustion
soot
devolatilization
numerical simulation
optical diagnostics
laser induced incandescence
Issue Date: 2021
Publisher: Hosokawa Powder Technology Foundation
Journal title: KONA Powder and Particle Journal
Volume: 38
Start page: 168
End page: 188
Abstract: In this paper, recent developments of the devolatilization model and soot-formation model for the numerical simulations of pulverized-coal combustion fields, and the technology used to measure soot particles in pulverized-coal combustion fields are reviewed. For the development of new models, the validation of the developed models using measurement is necessary to check the accuracy of the models because new models without validation have a possibility to make large errors in simulations. We have developed the tabulated devolatilization process model (TDP model) that can take into account the effect of particle heating rate on the volatile matter amount and the devolatilization-rate parameters. The accuracy of the developed TDP model was validated by using the laser Doppler velocimetry data for the bench-scale coal combustion test furnace. The soot-formation model combined with TDP model for the large eddy simulation (LES) has been also developed. The spatial distributions of both the soot-volume fraction and the polycyclic aromatic hydrocarbons were measured by virtue of laser-induced incandescence (LII) and laser-induced chemiluminescence (PAHs-LIF). The accuracy of the developed soot-formation model was validated by using the measured data.
Rights: Copyright © 2020 The Authors. Published by Hosokawa Powder Technology Foundation. This is an open access article under the CC BY license
URI: http://hdl.handle.net/2433/262701
DOI(Published Version): 10.14356/kona.2021003
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