Features of the kinetics of mass transfer processes in the process of firing ceramic materials


  • O.M. Nedbailo The State Enterprise "Engineering Center "Drying”" Institute of Engineering Thermophysics of NAS of Ukraine http://orcid.org/0000-0003-1416-9651
  • O.G. Chernyshyn The State Enterprise "Engineering Center "Drying”" Institute of Engineering Thermophysics of NAS of Ukraine http://orcid.org/0000-0001-7702-894X
Keywords:
kinetics of mass transfer processes, mass content

Abstract

In article the technique of definition factors of carrying over weight of substance in the course of roasting ceramic materials which is based on exponent dependences of change mass bodies from time of its heating is offered.

The process of firing ceramic materials is associated with the transfer of heat and mass of matter. Therefore, for a more complete calculation of the heat treatment mode, it is necessary to know the conditions for the mass transfer in the product being calcined. The aim of the work is to determine the mass transfer coefficients of the substance in the process of firing ceramic materials.

The mass loss rate of the bound matter or the mass loss per unit time will be directly proportional to the average mass content of the body. On the other hand, the mass loss rate of the bound matter is numerically equal to the slope of the mass content kinetics curve.

Proposed in the work formulas can be applied when studying the process of mass transfer during firing of samples from different clays, as when firing clay samples of different diameters under the same conditions, they will differ in the mass content (mass loss rate of the bound substance) during heating and their final relative amount (mass content) of the lost mass will be the same.

References

1. Каспарян, Г.А. Описание процесса обжига глин при помощи обобщенных переменных. Минск: Наука и техника, 1996. 82 с.

2. Лыков, А.В. Теория сушки. М.: Энергия, 1968. 471 с.

3. Ралко, А.В. Экспериментальное исследование нестационарного тепло- и массобмена в процессе обжига. ИФЖ, 1956. Т. 6. С. 28 – 96.
Published
2018-12-28
How to Cite
Nedbailo, O., & Chernyshyn, O. (2018, December 28). Features of the kinetics of mass transfer processes in the process of firing ceramic materials. Ceramics: Science and Life, (№4(41), 29-31. https://doi.org/10.26909/csl.4.2018.4