In general rotary kiln reactors where heat and mass transfer
between the solid phase and the gas phase occur, the effect of
heat transfer enhanced by lifter installation was interpreted.
The lifter hold up volume distribution of the material during
rotation was obtained and it was physically converted into an
effective contact surface to increase the contact between the
hot gaseous medium (combustion gas) and the granular material
(ore). It was applied to the simplified one-dimensional
heat balance model. As a result, this approach contributes to a
greater heat transfer rate between the solid and gas phase. The
temperature distribution of each of the phases along the axial
length was obtained after the lifter was installed. This method
contributes to the determination of the installation section
expecting the target off-gas temperature. However, this method
has limitations in terms of modeling a complex heat transfer
mechanism among the solid phase, gas phase, and wall.
Therefore, additional studies for a more specific mechanism,
heat loss, and heat of reaction are necessary.