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Multiscale Modeling of Superheated Steam Drying of Particulate Materials
Author(s) -
Le Kieu Hiep,
Tran Thi Thu Hang,
Nguyen Nguyen An,
Kharaghani Abdolreza
Publication year - 2020
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.201900602
Subject(s) - superheated steam , particulates , superheating , mass transfer , materials science , particle (ecology) , packed bed , porous medium , heat transfer , thermodynamics , spray drying , moisture , porosity , chemistry , chemical engineering , engineering , composite material , physics , oceanography , organic chemistry , geology
A multiscale model for predicting the superheated steam drying behavior of a packed bed filled with particulate porous material is presented. By using a reaction engineering approach (REA) a semi‐empirical model is developed that can describe the heat and mass transfer between a single particle and the surrounding drying agent. By analogy between superheated steam drying and hot air drying, the relative activation energy of the REA model is formulated. Next, the single‐particle drying model is fed into a continuum‐scale model of a packed bed. The temperature and moisture content of the solid and the vapor temperature are successfully predicted by the bed‐scale model. To endow the bed‐scale model with predictive capabilities, simulation results are compared with experimental literature data.