COMPARATIVE ANALYSIS OF METHODS SUPPLIES THERMAL ENERGY IN HIGH-WATER BIOLOGICAL OBJECTS DURING DRYING
Object of research: the process of heating a biological object with various methods of supplying thermal energy, in particular, convective, direct electric and combined methods.
Solved problem: intensification of heating of high-moisture biological objects during the drying process.
Main scientific results. The expediency of using a combined (direct electric and convective) supply of thermal energy for intensifying heating of raw materials in the drying process has been established. In terms of the duration of the heating process, combined heating is much more effective than using purely convective or direct electric heating. Comparison of the values of the duration of the heating process for a body weighing 0.0028 kg shows that the combined heating occurs 1.5–2.5 times faster. At the same time, the consumption of electrical energy for the selected processing modes is 279–254 J, which is 80–87 % of the total required energy. It has been found that the main control factor in the combined heat supply is the applied voltage of direct electric heating.
The area of practical application of the research results: enterprises of the processing industry, specializing in the production of dried products.
Innovative technological product: a combined method of heating high-moisture objects during the drying process, which will provide intensive and energy-efficient processing modes while maintaining the established quality of the finished product.
Scope of application of the innovative technological product: production of finished food products and semi-finished products.
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