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Numerical Simulations of Solid Circulation Characteristics in an Internally Circulating Elevated Fluidized Bed
Author(s) -
Hassan Muhammad,
Schwarz M. Philip,
Rafique Muhammad,
Feng Yuqing,
Liu Guodong,
Witt Peter J.,
Wang Shuai,
Lu Huilin
Publication year - 2017
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600529
Subject(s) - fluidized bed , mechanics , fluidized bed combustion , constant (computer programming) , flux (metallurgy) , chemistry , elevation (ballistics) , materials science , fluidization , thermodynamics , physics , geometry , mathematics , metallurgy , computer science , programming language
A twin‐chamber internally circulating elevated fluidized bed (EFB) with one chamber elevated higher than the other within a single vessel is simulated using a two‐fluid model. Two EFB configurations termed as reaction chamber (RC)‐elevated and heat exchange chamber (HEC)‐elevated is evaluated. The effect of chamber elevation, variation of superficial velocities, and interchanging the two chambers are investigated and the results are quantified in terms of solid flux G s . By increasing the RC gas velocity U R at constant HEC velocity U H , G s is increased in both EFBs while an opposite behavior is observed by increasing U H at constant U R . Variation of the chamber elevation as well as interchanging the chambers also affects the performance of the two EFBs.