ISSN Online: 2379-1748
ISBN Flash Drive: 978-1-56700-469-4
ISBN Online: 978-1-56700-470-0
Second Thermal and Fluids Engineering Conference
NUMERICAL MODELING STUDY ON HEAT TRANSFER IN A CONICAL FLUIDIZED BED REACTOR WITH IMMERESED HEATER
摘要
In this paper, numerical and experimental analysis of the heat transfer between an immersed heater and a cone
bed of sand particles were carried out. A 3-dimensional model using the Eulerian-Eulerian model coupling with
kinetic theory for granular flow was used to simulate heat transfer and related bed flow characteristics. The
investigation was carried out at different inlet gas velocity represented by the fluidizing number, (the ratio
between inlet gas velocity to minimum fluidizing velocity) and different particle-wall boundary conditions. Both
the experiments and numerical simulation results showed that the heat transfer coefficient and bed expansion
ratio increased with increasing inlet gas velocity. For particle-wall boundary condition, applying no slip
condition resulted in best heat transfer coefficient and bed expansion ratio compared to experimental results.