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Experimental study of droplet vaporization in a fluidized bed
Author(s) -
Leclère Karine,
Briens Cédric L.,
Bergougnou Maurice A.,
Bayle JÉRôme,
Gauthier Thierry,
Guigon Pierre
Publication year - 2001
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.5450790604
Subject(s) - agglomerate , vaporization , fluidized bed , economies of agglomeration , materials science , porosity , heat transfer , fluidization , thermodynamics , mechanics , chemical engineering , process engineering , composite material , engineering , physics
The injection of liquid in a hot fluidized bed is used in many industrial processes. The larger droplets are likely to engulf particles and create agglomerates that should be avoided when a fast vaporization is expected. A new model is proposed to estimate the chances of agglomeration based on a critical bed temperature below which agglomerates form. This critical temperature for safe operating conditions is based on heat transfer between the particles and the liquid and takes the porosity of the solid into account. The model could be applied to pure and multi‐component mixtures and has been validated experimentally.