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Design of a Multi-Staged Swirling Fluidized Bed

Cassim, Sameer (2011) Design of a Multi-Staged Swirling Fluidized Bed. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

The topic dealt with in this Final Year Project is the "Design of a Multi-Staged Swirling Fluidized Bed". Fluidization is defined as an operation through which fine solids are transformed into a fluid like state through contact with either a gas or a liquid. Circulating fluidizf:d beds are used mostly in the Chemical process industry, Mineral processing, pharmaceutical production, energy related processes and catalysts also for drying. The aim of the project is to combine multi-staging with counter~flow operation in the novel Swirling Fluidized Bed. The research done entails deep theoretical encounters with acknowledged and published papers regarding the stated topic. Ergun's equation is the co-relationship between all the above parameters over the distance of a packed column. One main finding states that by modifying the fluidizing pattern, it is possible to improve fluidization quality and reduce elutriation simultaneously without the need of auxiliary equipment. The main design aspects were analysed by the author from various recent articles and theoretical understandings from hand books. Hydrodynamics of the novel swirling fluidized bed was studied as well as aspects from the annular spiral distributor. Most part of this project deals with the conceptual design of a multi-stage swirling fluidized bed. The prototype will have three stages. The heights of each stage decrease with each stage so as to cater for pressure drop and air flow resistance. The downcomer-outlet has a zero angle of declination; relying on centrifugal forces for particle flow thus it is mounted tangentially on the bed wall. The downcomer-inlet enters each stage extended as close to the cone as possible for longer processing time and to prevent damage to the distributor on impact. A multi-stage swirling fluidized bed model was designed in CATIA and will be fabricated and experimented in future.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Petroleum
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 08 Nov 2013 11:38
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10371

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