THE DESIGN AND PERFORMANCE OF CONTINUOUS WELL-MIXED FLUIDIZED BED DRYERS - AN ANALYTICAL APPROACH
作者:
C. G. J. Baker,
期刊:
Drying Technology
(Taylor Available online 2000)
卷期:
Volume 18,
issue 10
页码: 2327-2349
ISSN:0737-3937
年代: 2000
DOI:10.1080/07373930008917845
出版商: Taylor & Francis Group
关键词: fluidized bed dryers;design;modeling;energy conservation;optimization;analytical solution
数据来源: Taylor
摘要:
In a previous study, a unified approach to the calculation of the size and energy consumption of well-mixed fluidized bed dryers was developed. A computer code was written and a parametric study undertaken to determine the effects of the principal operating variables. The results were shown to depend on the form of the drying kinetics. The present paper describes the formulation of an analytical model of a well-mixed fluidized bed dryer, which applies for materials that exhibit linear falling-rate drying. These materials are typified by small hygroscopic particles, which are frequently dried in such equipment. Equations are presented that enable the drying time, specific energy consumption, heater duty and bed area to be calculated. The predictions of these equations agreed well with previously published experimental findings and with the results of computer simulations for a typical solid (ion exchange resin) exhibiting the required drying characteristics.
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