Complex Heat Transfer in Furnaces with a Circulating Fluidized Bed
Artikel i vetenskaplig tidskrift, 2001

Intensity of heat transfer to screen surfaces in the furnaces with a circulating fluidized bed (CFB) is determined by both radiation and convection of particles. Due to the formation of a thermal boundary layer near the screens the role of radiation decreases and that of convection increases with an increase in concentration of particles in the furnace. Generalization of the data obtained in pilot-full-scale and industrial furnaces with a CFB allowed one to obtain a simple empirical dependence of the furnace-mean coefficient of heat transfer α (W/(m2·K) on the volumetric-mean concentration of particles c (kg/m3): α = 85·c0.3.


Fluidized bed

Heal transfer


A.P. Baskakov

Bo G Leckner

Institutionen för energiomvandling

Claes Breitholtz

Institutionen för energiomvandling

Heat Transfer Research

1064-2285 (ISSN)

Vol. 37 7-8 343-348






Chalmers kraftcentral