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Estimates of turbul...
Estimates of turbulence effects in CFB boilers
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Palchonok, Gennadij, 1950 (author)
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- Johnsson, Filip, 1960 (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)
- 1996
- 1996
- English.
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In: Proc of the 5th International Conference on Circulating Fluidized Bed. ; 5, s. 440-445
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Abstract
Subject headings
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- A simplified physical model of turbulence in a circulating fluidized bed (CFB) combustor is presented. The existence of a dense bubbling bottom bed, a splash zone with pronounced clustering effects and a transport zone with predominantly disperse solids flow in the core is accounted for. The energy dissipation rate evaluated from the total energy supply and the macro-scale of the bubble-induced turbulence are used as defining parameters for order of magnitude estimates of turbulence effects in a 0.7 m wide cold rig and a 12 MW CFB boiler. The results obtained show a reasonable agreement with available experimental data.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Keyword
- Turbulence
- Fluid dynamics
- Fluidized bed boiler
Publication and Content Type
- kon (subject category)
- ref (subject category)
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