We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Coal Particle Devolatilization and Soot Formation in Pulverized Coal Combustion Fields.
- Authors
Nozomu Hashimoto; Jun Hayashi
- 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.
- Subjects
PULVERIZED coal; LARGE eddy simulation models; COAL combustion; COALFIELDS; SOOT; LASER Doppler velocimetry
- Publication
KONA: Powder & Particle Journal, 2021, Issue 38, p168
- ISSN
0288-4534
- Publication type
Article
- DOI
10.14356/kona.2021003