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Golubeva O. A., Zhikhoruk A. A., Malaeva A. V.
Energy efficiency analysis of the blanching process of aquatic biological raw materials in the Northern Basin
DOI: 10.21443/1560-9278-2025-28-4/2-711-717
Abstract. The paper considers the process of calculating heat fluxes from the outer surface of the experimental plant for the implementation of combined blanching (first with water, then with steam). The aim of the study is to determine the amount of heat loss from the surface of the experimental installation with various methods of blanching seafood from the Northern Basin using the example of the stellate ramp. The experimental plant developed at the Murmansk State Technical University has a rectangular steel body, divided inside by a wall that partially separates the zones for blanching with water and steam. The studies were carried out using a Testo 875-1i thermal imager. As a result, the thermograms of the plant have been obtained for three methods of preliminary heat treatment (blanching): water treatment; treatment first with water and then with steam; steam treatment only. The working temperature range for water is 80 to 90 °C. The calculation of the heat flux from the edges of the plant’s body has been carried out considering the phenomenon of radiation heat transfer, as well as natural convection from the heated surfaces of the plant, with regard to their site in space and ambient temperature. In the course of study, bar charts with the percentage of temperature distribution over the surfaces of the plant, points with maximum and minimum temperatures have been obtained. When processing the experimental data, the coefficient of convective and radiative heat transfer, heat flux density and heat flux have been calculated for each surface. Based on the results obtained and knowing the electrical power consumption of the heating element and the steam generator, it is possible to select the type and determine the thickness of the thermal insulation layer of the plant which is to reduce heat losses and increase the energy efficiency.
Printed reference: Golubeva O. A., Zhikhoruk A. A., Malaeva A. V. Energy efficiency analysis of the blanching process of aquatic biological raw materials in the Northern Basin // Vestnik of MSTU. 2025. V. 28, No 4. P. 711-717.
Electronic reference: Golubeva O. A., Zhikhoruk A. A., Malaeva A. V. Energy efficiency analysis of the blanching process of aquatic biological raw materials in the Northern Basin // Vestnik of MSTU. 2025. V. 28, No 4. P. 711-717. URL: https://vestnik.mauniver.ru/v28_4_2_n106/13_Golubeva_711-717.pdf.
