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Parametric Analysis of Fluidised Bed using CFD

Author(s):

Siddayya Hiremath , PDA COLLEGE OF ENGINEERING GULBARGA; M.R Nagraj, PDA COLLEGE OF ENGINEERING GULBARGA

Keywords:

Fluidization, Ansys Fluent, Bed Height, Fluidization Time

Abstract

In this project, we are studying the operating characteristics and design of fluidized bed cooling towers (FBCT), which may be used to cool hot water for industrial purposes. An analysis based on computational fluid dynamics is carried out for 1000 mm height and 150 mm diameter fluidized bed with different static bed heights of 200 mm, 300 mm and 400 mm with glass beads as solid particles of diameter 2.18mm. The software used for this assessment are Ansys design modeler for modeling the 2D geometry of the FBCT, Ansys meshing for meshing, Ansys fluent 14.5 as a solver and post-processor. Turbulence model used is k-epsilon, multiphase option used is Eulerian dense discrete phase multiphase model and water is sprayed through dense discrete phase model. The change in temperature of sprayed water and pressure drop of air is observed in all the three cases. Based on results it is observed that the static bed height of 300 mm is giving optimized results with maximum temperature drop and minimal pressure drop.

Other Details

Paper ID: IJSRDV3I70379
Published in: Volume : 3, Issue : 7
Publication Date: 01/10/2015
Page(s): 594-599

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