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Batch and continuous spouted bed drying of cereal grains: The thermal equilibrium model
Author(s) -
Zahed Adnan H.,
Epstein Norman
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.5450700517
Subject(s) - isothermal process , water content , moisture , materials science , constant (computer programming) , equilibrium moisture content , mechanics , thermodynamics , chemistry , composite material , geology , geotechnical engineering , physics , sorption , adsorption , organic chemistry , computer science , programming language
Abstract A complete set of equations with no adjustable parameters are written for numerically predicting the variation of grain temperature and moisture content with time for batch drying of well mixed deep beds of three cereal grains, as well as the exit grain and air moisture contents and temperatures for continuous drying. Unlike previous studies, the surface moisture content of the grains is not assumed constant. Agreement with both batch and continuous spouted bed drying data from the literature is good, in the continuous case especially when the assumed exit age distribution of the isothermal bed solids is specific to spouting.