Modeling the Synthesis of Barium Titanate Micron Particles in Axisymmetric Direct-Flow and Three-Zone Reactors

• Published in: Journal of engineering physics and thermophysics Vol. 94; no. 5; pp. 1312 - 1325
• Main Author: Markov, A. V.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-09-2021; Springer; Springer Nature B.V
• Subjects: Axisymmetric flow; Barium; Barium titanates; Classical Mechanics; Combustion; Comparative analysis; Complex Systems; Engineering; Engineering Thermodynamics; Heat and Mass Transfer; Industrial Chemistry/Chemical Engineering; Mass transfer; Modelling; Porous media; Reactors; Synthesis; Thermodynamics; two-temperature model; superheating phenomenon; three-zone and direct-flow reactors; dispersion; synthesis of oxides during the combustion of carbon
• ISSN: 1062-0125; 1573-871X
• DOI: 10.1007/s10891-021-02412-8

A study is made of heat- and mass-transfer regime in a porous medium consisting of gas and solid reactants and products of synthesis of micron particles during the motion of a combustion front in cylindrical channels with account of thermal and mass dispersions. A model of a three-zone reactor is proposed, and a comparative analysis is made of the influence of dispersion on the process of operation of flow and three-zone reactors. Modeling results for different geometric parameters of the synthesis reactors are compared. A comparison is made of the results of calculating the synthesis of barium titanate and calculating for the model without thermal dispersion. Advantages of the three-zone reactor are noted.