Detecting stability of conical spouted beds based on information entropy theory

Research output: Contribution to journalArticlepeer-review


  • Chiya Savari
  • Rahmat Sotudeh-Gharebagh
  • Gorkem Kulah
  • Murat Koksal
  • Navid Mostoufi

Colleges, School and Institutes

External organisations

  • Univ. of Tehran
  • Middle East Technical University
  • Hacettepe University


Effects of particle size, particle density, gas inlet diameter and static bed height on the stability of operation in conical spouted beds were investigated through analyses of information entropy of pressure fluctuations. In this respect, the maximum information entropy of pressure fluctuations was used as a stability criterion. The results showed that stability of the bed increases with an increase in the maximum entropy. The maximum information entropy of pressure fluctuations increases with increasing particle size and bed height while decreases with increasing gas inlet diameter and particle density. A stability map was also prepared to present the effect of operating parameters on the maximum entropy. Moreover, a correlation for prediction of maximum information entropy was developed to determine the stable operation conditions of conical spouted beds operating with low as well as high density particles.


Original languageEnglish
Pages (from-to)185-193
Number of pages9
JournalPowder Technology
Early online date9 Nov 2018
Publication statusPublished - 1 Feb 2019


  • Conical Spouted Bed, Information Entropy, Pressure fluctuation, Stability

ASJC Scopus subject areas