Ash & Pulverized Coal Deposition in Combustors & Gasifiers | Zendy

Goodarz Ahmadi | Zendy

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Ash & Pulverized Coal Deposition in Combustors & Gasifiers

Author(s) -

Goodarz Ahmadi

Publication year - 1998

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/2041

Subject(s) - deposition (geology) , turbulence , boundary layer , pulverized coal fired boiler , particle (ecology) , mechanics , particle deposition , vortex , combustor , aerosol , meteorology , materials science , environmental science , coal , chemistry , physics , waste management , geology , engineering , combustion , paleontology , oceanography , organic chemistry , sediment

Further progress in achieving the objectives of the project was made in the period of January I to March 31, 1998. The direct numerical simulation of particle removal process in turbulent gas flows was completed. Variations of particle trajectories are studied. It is shown that the near wall vortices profoundly affect the particle removal process in turbulent boundary layer flows. Experimental data for transport and deposition of fibrous particles in the aerosol wind tunnel was obtained. The measured deposition velocity for irregular fibrous particles is compared with the empirical correlation and the available data for glass fibers and discussed. Additional progress on the sublayer model for evaluating the particle deposition and resuspension in turbulent flows was made

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