- Title
- Investigation of droplet evaporation in a bubbling fluidized bed
- Creator
- Mitra, Subhasish; Sathe, Mayur; Doroodchi, Elham; Evans, Geoffrey
- Relation
- 9th International Conference on Computational Fluid Dynamics in the Minerals and Process Industries (CFD2012). Proceedings of the Ninth International Conference on CFD in the Minerals and Process Industries (Melbourne 10-12 December, 2012)
- Relation
- http://www.cfd.com.au/cfd_conf12/m.htm
- Publisher
- CSIRO
- Resource Type
- conference paper
- Date
- 2012
- Description
- Droplet evaporation in fluidized beds is of great interest in applications like fluidized catalytic cracking units. Although a significant number of analyses are available for modelling of droplet vaporization in a fluidized bed, very little work has been performed experimentally to measure the vapour concentration followed by numerical validation. In the present work, acetone droplet evaporation in a bubbling fluidized bed is studied experimentally as well as numerically. A liquid jet of acetone is injected into a hot bubbling fluidized bed kept well above saturation temperature of acetone. Non-intrusive Schlieren imaging, based on the difference in refractive index, is used to trace the acetone vapour concentration profile. The bubbling fluidized bed is modelled in an Eulerian framework using a simplistic porous media approach while the droplets are modelled in a Lagrangian framework. Intense interactions are observed between the evaporating droplets and hot particles during contact with re-suspension of particles. Experimental measurement and CFD results and measured vapour concentration are compared and found to be in qualitative agreement.
- Subject
- bubbling fluidized bed; droplet; evaporation; CFD; Schlieren imaging
- Identifier
- http://hdl.handle.net/1959.13/936662
- Identifier
- uon:12370
- Identifier
- ISBN:9781922173010
- Language
- eng
- Full Text
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