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Characteristics of ...
Characteristics of the formation of particle wall-layers in CFB boilers
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- Johnsson, Filip, 1960 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Zhang, Wennan, 1962 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Leckner, Bo G, 1936 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 1995
- 1995
- English.
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In: Proc of the 2nd International Conference on Multiphase Flow. ; 3, s. FB1-25-FB1-32-
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Abstract
Subject headings
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- The character of the vertical two-phase flow in circulating fluidized bed (CFB)boiler furnaces is compared with results from small CFB risers presented in literature. The particle flow in furnaces as well as in the smaller risers shows a core/wall-layer structure. In the CFB boilers the particle flow pattern develops up through the furnace with the major back-flow caused by separation to the furnace walls. Both the particle wall-layer thickness and the downward flux within this layer increase downwards along the furnace walls. In the smaller units this downward increase is either absent or much smaller, a consequence of a more developed particle flow profile, which, typically, is parabolic in shape.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Keyword
- Fluidiced bed
- wall layers
- CFB boiler
- fluid dynamics
Publication and Content Type
- kon (subject category)
- ref (subject category)
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