Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/9758
Title: Particle deposition simulation using the CFD code FLUENT
Authors: Yılmaz, Selahattin
Cliffe, K. R.
Publisher: Maney Publishing
Abstract: Particles of Soda Lime Silica Glass were used to simulate fly ash in the modelling of particle deposition from a high-temperature flue gas on to a superheater tube. The computational fluid dynamic code FLUENT was used and experimental deposition data were obtained from a rig comprising a small scale furnace containing an air-cooled probe. The effects of particle size, gas velocity and temperature on deposition were investigated. The effects of inertia, eddy impaction, thermophoresis and gravity on the particle trajectories were considered. The number of particles captured by the probe and the furnace surfaces were predicted and agreement with experimental results was found to be a function of particle size with the best agreement achieved for 16- and 26-mu m particles. Deposition was controlled by the kinetic energy of the particles and the adhesive forces of the surface. It is postulated that, for small particles, there was insufficient energy to bond them to the surface whereas for larger particles their kinetic energy was too targe. Thermophoresis did not play a significant part in the deposition process because, although the temperature gradient was large, 400 degrees C mm(-1) in the thermal boundary layer, the small particles (6 and 8 mu m) were unable to reach the thermal boundary layer (9 mm) which was much smaller than the hydrodynamic boundary layer (49.5 mm).
URI: https://hdl.handle.net/11147/9758
ISSN: 0144-2600
1746-0220
Appears in Collections:WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Show full item record



CORE Recommender

WEB OF SCIENCETM
Citations

14
checked on May 17, 2024

Page view(s)

124
checked on May 20, 2024

Google ScholarTM

Check





Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.