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Hydrodynamics and interphase heat transfer in a swirled spouted bed
Author(s) -
Dolidovich A. F.
Publication year - 1992
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450700515
Subject(s) - interphase , pressure drop , entrainment (biomusicology) , heat transfer , materials science , drop (telecommunication) , mechanics , thermodynamics , mechanical engineering , physics , engineering , genetics , biology , rhythm , acoustics
Abstract A new modification of a spouting technique, a swirled spouted bed ( SSB ), is developed and proposed to increase the efficiency of heat treatment of polyfractional and fine particles and to reduce their entrainment. It is shown that under the developed spouting conditions the SSB pressure drop is 20‐30% and incipient spouting velocity is 40‐50% lower whereas an interphase heat transfer rate is 15‐25% higher as compared to a classical spouted bed ( CSB ). An empirical correlation is proposed to determine the SSB pressure drop under developed conditions.