Heat and moisture transfer kinetics and temperature during drying of fabrics
https://doi.org/10.29235/1561-8358-2021-66-4-449-457
Abstract
The methods of approximation of the curve of the drying rate of fabrics according to the methods of A. V. Lykov and V. V. Krasnikov are described. The results of processing experimental data on convective tissue drying are presented. Equations are given for determining the drying time of fabrics, the density of heat flows and the temperature of fabrics during the drying process. The equations for determining the drying coefficient and the relative drying rate are given. An analytical method for determining the temperature for the period of falling drying rate is considered. The comparison of the temperature values according to the results of analytical solutions with the values obtained by the experimental formula is given. It is shown that the number of Bio during drying of fabrics is less than one, and the main limiting factor is the external heat and moisture exchange of the evaporation surface from the surface of the material with the environment. Verification of the reliability of the calculated values obtained with experimental ones is presented. The discrepancy between the values is within 5 % of the accuracy of the experiment and processing.
About the Authors
A. I. Ol’shanskii
Vitebsk State Technological University
Belarus
Belarus
Anatolii I. Olshanskii – Ph. D. (Engineering), Associate Professor of the Department of Technology and Equipment of Machine-Building Production
72, Moskovsky Ave., 210035, Vitebsk, Republic of Belarus
A. S. Marushchak
Vitebsk State Technological University
Belarus
Belarus
Alexey S. Marushchak – Postgraduate Student, Assistant of the Department of Technology and Equipment of Machine-Building Production
72, Moskovsky Ave., 210035, Vitebsk, Republic of Belarus
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