Ash & Pulverized Coal Deposition in Combustors & Gasifiers

Technical Report · Wed Dec 02 04:00:00 EST 1998

DOI:https://doi.org/10.2172/2038· OSTI ID:2038

Ahmadi, Goodarz ^[1]

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1. Federal Energy Technology Center

Further progress in achieving the objectives of the project was made in the period of October 1 to December 31, 1996. In particular, the sublayer model for evaluating the particle deposition in turbulent flows was extended to include the effect of particle rebound. A new more advance flow model for the near wall vortices is also used in these analysis. The computational model for simulating particle transport in turbulent flows was used to analyze the dispersion and deposition of particles in a recirculating flow region. The predictions of the particle resuspension model is compared with the experimental data. It is shown that when the effects of the near wall flow structure, as we as the surface roughness are included the model agrees with the available experimental data. Considerable progress was also made in the direct numerical simulation of particle removal process in turbulent gas flows. Experimental data for transport and deposition of glass fiber in the aerosol wind tunnel was also obtained.

• Research Organization: Federal Energy Technology Center, Morgantown, WV, and Pittsburgh, PA
• Sponsoring Organization: USDOE
• DOE Contract Number: FG22-94PC94213
• OSTI ID: 2038
• Report Number(s): DE-FG22-94PC94213--10; ON: DE00002038
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
Ashes
Coal
Combustion
Deposition