The current study on fluidizations system involved with a new design of different slotted inclination angle perforated plates. The new design was to overcome the disadvantage of the conventional of perforated plate which is most of the distributor didn't have an inclination angle. Results from velocities distribution in each perforated plate are extracted. The designs are produces by using Computer-Aided Design (CAD) while studies on characteristics of air flow are be made using computational fluid dynamics (CFD). Each perforated plate design was different in their types of hole (slotted), number of slotted and inclination angle in order to get the best result which respect to the tangential velocity values. The performance of the SFB was assessed in term of velocity distributions values. The higher the tangential velocity, the better the air will be distributed. The most important part to the appropriate design in the plate distributor is slotted inclination angle and the slotted number. The good results in this study were produced by the less number of the slotted on the plate distributor and low slotted inclination angle which is able to produce a high average velocity compared with the less number of slotted.
