Numerical Studies of the Gas-Solid Hydrodynamics at High Temperature in the Riser of a Bench-Scale Circulating Fluidized Bed

Table 6

Input data used in the semiempirical model based on Hory et al. [27].

Internal diameter of the riser column, D	0.102 m
Height of the secondary air injection, ℎ𝑖	0.9 m
Solids reflux ratio, 𝑅𝑠	0.066
Operation temperature, 𝑇𝑏	673 K
Operation pressure, 𝑃𝑏	101.3 kPa
Voidage fraction bottom region of the riser, 𝜀𝑎^1	0.9
Solid sphericity, 𝜙𝑠^1	0.75

¹Values supported by Basu [2].