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2026 (published: 15.06.2026)
Number 2(68)
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Algorithm for reproducing partial diffusion dependences of fish smoking and drying processes: design by calculation method
Pokholchenko V.A. , Ershov Alexander M., Pelenko V.V., Mishanina Ludmila A.
Keywords: heat treatment; fish raw materials; dehydration; heating; diffusion; thermal diffusion; similar processes; generalized dependence
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
Algorithm for reproducing partial diffusion dependences of fish smoking and drying processes: design by calculation method
The distribution of moisture and temperature across the thickness of fish of varying size, weight, and species composition was studied during their heat treatment by smoking and drying using hot and semi-hot methods. New diffusion similarity criteria were proposed for fish dehydration and heating processes with the purpose of reducing numerous individual relationships into generalized diffusion and thermal diffusion relationships in dimensionless coordinates. The resulting patterns enable the calculation of diffusion and thermal diffusion coefficients in fish during dehydration and heating. Subsequent analysis of the diffusion properties of the processed objects, with minimal research work, significantly simplifies the development of optimal fish heat treatment regimes. Generalized mathematical models are proposed based on the obtained diffusion patterns for semi-hot and hot drying, semi-hot and hot smoking of fish. The application of the obtained patterns of diffusion processes allows to determine by calculation the coefficients of diffusion and thermal diffusion of moisture in fish during its heat treatment at any process time, depending on the operating parameters of the drying agent, the geometric dimensions and the initial moisture content of the raw material.
Keywords: heat treatment; fish raw materials; dehydration; heating; diffusion; thermal diffusion; similar processes; generalized dependence
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License