1547-5905/asset/AIC_left.gif?v=1&s=43a3d567c64d3d5d712c0af6c2cacb1e1bcc1a2b)
1547-5905/asset/AIC_right.gif?v=1&s=518efadeedca9ceeef271499f690fdebd2ed9164)
Particle Technology and Fluidization
Experimental study on solid circulation in a multiple jet fluidized bed
Article first published online: 2 DEC 2011
DOI: 10.1002/aic.13703
Copyright © 2011 American Institute of Chemical Engineers (AIChE)
Additional Information
How to Cite
Agarwal, G., Lattimer, B., Ekkad, S. and Vandsburger, U. (2012), Experimental study on solid circulation in a multiple jet fluidized bed. AIChE J., 58: 3003–3015. doi: 10.1002/aic.13703
Publication History
- Issue published online: 10 SEP 2012
- Article first published online: 2 DEC 2011
- Accepted manuscript online: 15 NOV 2011 10:10AM EST
- Manuscript Revised: 12 OCT 2011
- Manuscript Received: 15 JUL 2011
Funded by
- Virginia Tech Institute for Critical Technology and Applied Science (ICTAS)
- Abstract
- Article
- References
- Cited By
Keywords:
- fluidization;
- multiple jets;
- particle image velocimetry;
- solid volume fraction;
- solid circulation;
- particle entrainment
Abstract
Particle image velocimetry was used to investigate the evolution of multiple inlet gas jets located at the distributor base of a two-dimensional fluidized bed setup. Results were used to estimate the solid circulation rate of the fluidized bed as well as particle-entrainment into the individual jets. The effects of fluidization velocity, orifice diameter, orifice pitch, particle diameter, and particle density were studied. It was determined from this study that the solid circulation rate linearly increased with an increase in the fluidization velocity until the multiple jet system transitioned from isolated to an interacting system. In the interacting system of jets, the solid circulation increased with fluidization velocity but at a much lower rate. For multiple jet systems, this phenomenon may indicate the presence of an optimum operating condition with high circulation rate and low air input in the bed. © 2011 American Institute of Chemical Engineers AIChE J, 58: 3003–3015, 2012