THERMAL SCIENCE

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Christo Boyadjiev

DIFFUSION MODELS AND SCALE-UP

ABSTRACT
A model for transfer processes in column apparatuses has been done. The model may be modified for different apparatuses as columns with (or without) packet bed, two (or three) phase airlift reactors and fluidized bed reactors. The mass transfer is result of different volume reactions as a chemical, photochemical, biochemical or catalytic, reactions, or interphase. mass transfer. The using of the average velocities and concentration permit to solve the scale-up problems. A hierarchical approach for model parameter identification has been proposed.
KEYWORDS
diffusion model, scale-up, average velocity, average concentration, scale effect, column, air lift, fluidized bed, volume reaction
PAPER SUBMITTED: 2004-01-11
PAPER REVISED: 2005-02-10
PAPER ACCEPTED: 2005-02-15
DOI REFERENCE: https://doi.org/10.2298/TSCI0501043B
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2005, VOLUME 9, ISSUE Issue 1, PAGES [43 - 71]
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Diffusion models and scale-up

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