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Title Fluidized bed in gravitational shelf dryers: optimization calculation
Authors Artiukhova, Nadiia Oleksandrivna  
Krmela, J.
Krmelova, V.
Artiukhov, Artem Yevhenovych  
Gavendova, M.
Keywords multistage gravitational shelf dryer
fluidized bed
hydrodynamics
motion trajectory
simulation of engineering calculation
Type Article
Date of Issue 2021
URI https://essuir.sumdu.edu.ua/handle/123456789/85365
Publisher Polish Academy of Sciences
License Creative Commons Attribution 4.0 International License
Citation Artyukhova, Nadiia ; Krmela, Jan ; Krmelová, Vladimíra ; Artyukhov, Artem ; Gavendová, Mária. Fluidized bed in gravitational shelf dryers: optimization calculation. Bull. Pol. Acad. Sci. Tech. Sci. 69(3) 2021, e137388
Abstract The article deals with studying the hydrodynamic characteristics of the fluidized bed in gravitation shelf dryers. The algorithm to calculate hydrodynamic characteristics of the fluidized bed in the dryer’s workspace is described. Every block of the algorithm has a primary hydrodynamic characteristics theoretical model of calculation. Principles of disperse phase motion in various areas in the gravitation shelf dryer are established. The software realization of the author’s mathematic model to calculate disperse phase motion trajectory in a free and constrained regime, disperse phase residence time in the dryers’ workspace, polydisperse systems classification is proposed in the study. Calculations of disperse phase motion hydrodynamic characteristics using the software product ANSYS CFX, based on the author’s mathematic model, are presented in the article. The software product enables automating calculation simultaneously by several optimization criteria and visualizing calculation results in the form of 3D images. The disperse phase flow velocity fields are obtained; principles of a wide fraction of the disperse phase distribution in the workspace of the shelf dryer are fixed. The way to define disperse phase residence time91 in the workspace of the shelf dryer in free (without consideration of cooperation with other particles and dryer’s elements) and con-strained motion regimes is proposed in the research. The calculation results make a base for the optimal choice of the gravitation shelf dryer working chamber sizes.
Appears in Collections: Наукові видання (ННІ БіЕМ)

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