THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Mohamed Sobhi Al-Agha

,

Pal Szentannai

ONE-DIMENSIONAL NUMERICAL MODEL FOR PREDICTION OF JETSAM CONCENTRATION IN SEGREGATING FLUIDIZED BEDS

ABSTRACT
The present study introduces an advanced numerical solution of the so-called Gibilaro and Rowe (G-R) equations to describe jetsam axial distribution in stationary fluidized beds. The proposed model takes into account the mechanisms responsible for jetsam movement in binary fluidized beds. This methodology benefits from the recent availability of high computational units in optimizing model coefficients to give the best fit with the experimental data. Fortunately, there is a large number of experimental test cases from literature, that can help with scaling the model. In such a way, the model has been calibrated via more than 50 experimental cases of different binary mixtures at various operating conditions. Therefore, it can be considered as a reliable predicting tool for various compositions and operating conditions of fluidized beds in many industrial applications. Also, comparisons with previously published models have been done. The results have shown that the proposed numerical model is in good agreement with the experimental data.
KEYWORDS
numerical solution, G-R model, binary mixture, fluidized beds, model calibration
PAPER SUBMITTED: 2017-04-18
PAPER REVISED: 2018-01-11
PAPER ACCEPTED: 2018-01-31
PUBLISHED ONLINE: 2018-03-04
DOI REFERENCE: https://doi.org/10.2298/TSCI170418066A
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 2, PAGES [1173 - 1187]
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One-dimensional numerical model for prediction of jetsam concentration in segregating fluidized beds

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