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Experimental Studies on the Effect of the Particle Shape and Distributor Blade Overlap Angle on the Bed Pressure Drop in a Swirling Fluidized Bed

Marimuthu, Jeevaneswary (2011) Experimental Studies on the Effect of the Particle Shape and Distributor Blade Overlap Angle on the Bed Pressure Drop in a Swirling Fluidized Bed. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Swirling Fluidized Bed (SFB) is a newer variant of fluidized bed. Although it's been investigated by many researchers, a good understanding of its hydrodynamics and the effects of different design parameters on it is yet to be established. In fluidized bed processes, bed pressure drop is crucial as it determines the power required. The present work is an effort to investigate the effect of particle shape and distributor blade overlap angle on bed pressure drop in a SFB. In this study, bed particles of different shapes (cylindrical, spherical and oval) were used with different bed weights (500g, 750g and lOOOg). The experiments were conducted with various distributor blade overlap angles (9", 12", 15" and 18") at constant blade inclination of 1 0". The experimental set up used in this research is shown in Figure 12 and Figure 18. Batch experiments were carried out with increasing the bed weight from 500g to 1 OOOg in a step of 250g of bed particle for each shape and each distributor blade overlap angle. The results obtained were tabulated. Graphs were plotted to show the bed pressure drop variation with superficial velocity for each particle shape and distributor overlap angle. Figure 22 until Figure 39 show the results of this experiment. Result analysis confirmed that spherical particle has a higher bed pressure drop among the three shapes. Besides that, distributor blade overlap angle of 9" gives higher bed pressure drop as well. Hence, particle with spherical shape and blade overlap angle of9" influenced the bed pressure drop the most. In the meantime, oval shape particles have lowest minimum fluidization velocity as compared to cylindrical and spherical particle. As a conclusion, the research conducted proves the superiority of SFB over conventional bed.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Materials - Advanced engineering materials - Processings and applications of metals alloys
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 12 Nov 2013 09:42
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10459

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