Characteristics of the Lateral Particle Distribution in Circulating Fluidized Red Boilers

Zhang, Wennan,1962Chalmers tekniska högskola,Chalmers University of Technology (författare)

The local time-averaged solids volume fraction was measured in the 12MW~1 Circulating Ruidized Bed (CFR) boiler at Chalmers University of Technology. It was found that the corelwall-layer structure of the flow pattern observed in small-scale beds also characterizes large-scale CFR boilers. The local solids volume fractions close to the wall and in the core region of the furnace were found to be directly proportional to the cross-sectional average solids volume fraetjon, c, as ohtained from pressure rneasurements. If the shape of the membrane-tube wall is taken into account, the relationship for the solids fraction close to the wall (related to a plane wall) is c~=3.6c, which is similar to that reported in literature for plain walls.

Johnsson, Filip,1960Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)fijo (författare)
Leckner, Bo G,1936Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ble (författare)
Chalmers tekniska högskola (creator_code:org_t)

Ingår i:Proc of the 4th International Conference on Circulating Fluidized Beds, s. 266-273

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