Radiative transfer in circulating fluidized bed furnaces
Journal article, 1997
Three methods of estimating Ihe effective emissivily of a gas-particle suspension are eoml~ared and the radiative heat transfer coefficient
of an isothermal suspension is defined. Heat flux measurements obtained from circulating fluidized bed comhustors are examined. Radiation
from a particle suspension with core temperature dominates the radiative heat transfer in the upper part of the furnace, where the particle
density is low and no substantial particle boundary layers are formed. Over the lower pails of the heat transfer surfaces, where significant
thermal and particle boundary layers are present, the radiative heat flux is dominated by emission from the relatively low temperature particle
layer in the vicinity of the heat receiving surface.
Radialive heal transfer
Heal transfer
Circulating fluidized beds