𝔖 Bobbio Scriptorium
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96/06321 Ash vaporization in circulating fluidized bed coal combustion

Publisher
Elsevier Science
Year
1996
Weight
197 KB
Volume
37
Category
Article
ISSN
0140-6701

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✦ Synopsis

Boiler ash deposits generated during combustion of coal, biomass, black liquor, and energetic materials affect both the net plant efficiency and operating strategy of essentially all boilers. Such deposits decrease convective and radiative heat exchange with boiler heat transfer surfaces. In many cases, even a small amount of ash on a surface decreases local heat transfer rates by factors of three or more. The report relates the chemical and microstructural properties of ash deposits to their physical and transport properties.

πŸ“œ SIMILAR VOLUMES

Combustion kinetics of high-ash coals in
Combustion kinetics of high-ash coals in fluidized beds
✍ D.F.G. DurΓ£o; P. FerrΓ£o; I. Gulyurtlu; M.V. Heitor πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 731 KB

Burnout times of high-ash coals in a fluidized bed were determined for coal panicle sizes ranging from 0.125 to 4 ram, over a temperature range of 973-1173 K and fluidization velocities varying from 3.7Umf to 6.2U,,f. The results show that the mode with which anthracite particles burn resembles that