id: 35244
Title: Study of the process of active-ventilation drying of legume grasses' fractional processing products
Authors: Kaletnik H., Yaropud V., Polievoda Y., Solona O., Babyn I., Tverdokhlib I.
Keywords: drying, structural and technological scheme, heat and mass exchange equipment, dryer, alfalfa, calculation, simulation, parametr
Date of publication: 2024-02-28 14:20:17
Last changes: 2024-02-28 14:20:17
Year of publication: 2024
Summary: Based on the results of research, the technological and constructive-technological scheme of the conveyor heat-mass exchange equipment for the fractional processing of leguminous herbs is substantiated, which is made in the form of a chamber with horizontal belt conveyors installed in it, in the middle of which are placed calorifiers with heated steam, and centrifugal fans are installed on top of the chamber. Based on the results of analytical studies, the design and technological parameters of the developed conveyor heat-mass exchange equipment for the fractional processing of legumes were calculated. It was established that the productivity of the wet product is 1300 kg/h. The product comes out of the dryer at a humidity of 7% and a temperature of 45 ºС. Based on the results of the calculation, we obtained the design parameters of the working area of the conveyor heat and mass exchange equipment: length – 3.8 m, width – 2.1 m and height 2.3 m. Total heat loss in the drying unit – 13 kJ/kg. The speed of the belt conveyor is 0.11 m/s. Using the Simcenter STAR-CCM+ software package, a simulation of the technological process of drying in the developed conveyor heat and mass exchange equipment was carried out. Visualizations of the flow rate distribution of particles of products of fractional processing of legumes and air flow in the area of the conveyor heat and mass exchange equipment were obtained in scalar and vector form. The temperature distribution of the air flow in the area of the conveyor heat and mass exchange equipment was determined in a scalar form and its influence on the temperature of the particles of the fractional processing of leguminous grasses moving along belt conveyors was revealed. The presented results of numerical modeling confirm the analytical calculations. However, in the future, it is necessary to carry out experimental studies of the drying process of products of fractional processing of leguminous herbs and empirically check the rational structural and technological parameters of the conveyor heat and mass exchange equipment.
URI: http://81.30.162.23/repository/getfile.php/35244.pdf
Publication type: Статті Web of Science
Publication: Przeglad Elektrotechniczny. 2024. Vol. 100, № 2. P. 156-163. DOI:10.15199/48.2024.02.32
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