Universiti Teknologi Malaysia Institutional Repository

Simulations of catalytic ozone decomposition reaction in fluidized bed

Ikhwan Zaid, Muhamad Nor (2013) Simulations of catalytic ozone decomposition reaction in fluidized bed. Masters thesis, Universiti Teknologi Malaysia, Faculty of Mechanical Engineering.


Official URL: http://dms.library.utm.my:8080/vital/access/manage...


The accuracy in predicting the ozone decompositions is influenced by correctly predicting the solid particle hydrodynamics. In this study, computational fluid dynamics modelling of catalytic ozone decomposition reactions is used to study the performance of a fluidized bed reactor that uses sand silica particles as catalyst. The Eularian-Eularian method with kinetic theory of granular flow in two-dimensional is used to solve the gas-solids flow in the fluidized bed reactor. Turbulence model is applied in two phase’s reaction while considering the effect of the specularity coefficient and particle wall restitution coefficient wall to predict the hydrodynamic of solid particle distribution inside the chamber. The numerical results under different operating conditions are compared with the similar studies for the solids volume fraction, solids velocity and ozone concentrations in the radial and axial directions to validate the generality of the proposed CFD model. In conclusion, the ozone concentration decreases with the decrease in the superficial gas velocity and vice versa while the particle size also plays a major role on the reaction contributed by the contact surface area between two phases.

Item Type:Thesis (Masters)
Additional Information:Thesis (Sarjana Kejuruteraan (Mekanikal)) - Universiti Teknologi Malaysia, 2013; Supervisor : Assoc. Prof. Ir. Dr. Sha'ri Mohd. Yusof
Divisions:Mechanical Engineering
ID Code:34678
Deposited By: Kamariah Mohamed Jong
Deposited On:24 Jul 2017 10:59
Last Modified:21 Jul 2021 01:03

Repository Staff Only: item control page