Vibrations in engineering and technology

Tykhtylo Bohdan – graduate, specializing 133 “Industrial Engineering”, Department of Mechanical and Electrical Engineering, Poltava State Agrarian University (Skovorody Str. 1/3, Poltava, Ukraine, 36003, e-mail: bohdan.tykhtylo@pdau.edu.ua, ORCID: 0009-0009-6277-0346).

The study of airflow patterns in a drying chamber with top heat carrier supply is a crucial aspect of optimizing drying processes, as it influences the uniformity of heat distribution, heat exchange efficiency, and energy consumption. The study considers the impact of key parameters such as heat carrier velocity, particle residence time in the heat carrier flow, the inclination angle of the outer row blades, the structural features of the chamber, and the arrangement of drying material on drying efficiency. It has been established that proper organization of the airflow contributes to reducing heat losses and ensuring uniform material heating, which, in turn, enhances the quality of the final product. Notably, optimizing the velocity profiles of the heat carrier in the drying chamber resulted in a productivity increase of approximately 10%. The conducted simulations identified areas with potential stagnation zones, where air circulation is insufficient, potentially leading to uneven drying of the product. The obtained results can be utilized to improve the design of drying chambers and optimize the technological drying regimes for various materials. Based on experimental data, velocity distribution curves ϑ of the heat carrier flow were constructed for a drying chamber with a radius R at heights of 1 m, 2 m, and 3 m in the vertical direction from the outlet section of the air distributor. Analysis of the results indicates that the implementation of top heat carrier supply can provide better control over the drying process, making this method a promising approach for industrial applications.

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