• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Investigation of bubbling behavior in deep fluidized beds at different gas velocities using electrical capacitance tomography

Agu, Cornelius Emeka; Ugwu, Ambrose; Pfeifer, Christoph; Eikeland, Marianne Sørflaten; Tokheim, Lars-Andre; Moldestad, Britt Margrethe Emilie
Journal article, Peer reviewed
Published version
Thumbnail
View/Open
Agu (2.551Mb)
URI
http://hdl.handle.net/11250/2642162
Date
2019
Metadata
Show full item record
Collections
  • Institutt for energi og prosessteknikk [2623]
  • Publikasjoner fra CRIStin - NTNU [19747]
Original version
Industrial & Engineering Chemistry Research. 2019, 58 (5), 2084-2098.   10.1021/acs.iecr.8b05013
Abstract
Deep bubbling fluidized beds have some advantages that make them attractive for industrial applications. Using different powders, this paper investigates the bubbling behavior in deep beds. The results show that bubbles grow faster in the bed of angular/rough particles than in that of round/smooth particles and that the rate of bubble growth increases with increase in the particle size. With an increase in the bed height, the changes in the bubble diameter and solids distribution decrease within the bubbling regime but may vary within the slugging regime due to the chaotic behavior of slug flows. The bubble frequency increases with an increase in the gas velocity only when the bubble diameter is below a certain threshold value; for larger bubbles, the bubble frequency is lower. The maximum bubble frequency indicates the onset of slugging. Correlations for predicting the maximum bubble/slugging frequency averaged over the bed height and the corresponding bubble diameter are proposed.
Publisher
American Chemical Society
Journal
Industrial & Engineering Chemistry Research

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit