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  • Ескіз
    Документ
    Modeling of the process of kneading the yeast dough by modern working elements
    (2019) Rachok, Vitalii; Telychkun, Volodymyr; Telychkun, Yuliia
    The scheme of the mathematical modeling of the process of mixing of the yeast dough in a dough machine of continuous action is developed. Based on the results of simulation of the mixing process, cam operating elements, the distribution of strain of displacement and dissipation of yeast dough in the working chamber were obtained. As the angle of the position of the cam element increases on the shaft, there is an increase in the shear stress. The greatest indices of shear stress occur in the area of cam clamping elements and in the contact area of the cam with the walls of the case, numerical values reach within 7000-8000 Pa. For the rest of the camera, the displacement stress reaches 1000-3000 Pa. Distribution of dissipation shows that in parts of the working chamber here is the formation of heat in the area of flow. With the increase of the angle of the cam of the cam element, there is a gradual increase in temperature. At the site of mixing 12 pairs of cams, the temperature of the yeast dough increases by almost 5° C. Taking into account that before the simulation, the initial temperature reached t=30° C, and upon completion of the mixing process did not exceed 35° С, the pastry preparation parameters were observed. The greatest heat release occurs in the area of the cam clamping elements. The results of mathematical modeling are confirmed by physical experiments on a test dough mixing machine of continuous action, an error within 5%
  • Ескіз
    Документ
    Assessment of energy expenditure on the kneading wheat dough process
    (2019) Telychkun, Volodymyr; Damyanova, Stanka; Anisimov, Andrii; Telychkun, Yuliia
    A quantitative assessment of the quality of the process of k neading the dough in the dough machines, of both periodic and continuous this is the total and specific energy expenditure. Determination of energy expenditure is necessary for the calculation of the dough machine as well as the energy analysis of specific stages of the process. Studies were conducted on a laboratory kneading machine of periodic action. To measure the energy expenditure used wattmeter. An analysis of the experimental data showed how energy expenditure varied throughout the experiment and confirmed three stages of the kneading wheat dough process. Comparing the calculated theoretical values with the obtained experimental values, they were found to be different. Studies of the process of kneading wheat dough prove the need for changes in the method of calculating energy expenditure for kneading, eliminating the formal approach to this process and taking into account the energy expenditure of structural transformations.
  • Ескіз
    Документ
    Modelling of Process in Twin-Screw Dough-Mixing Machines
    (2014) Kudinova, Alexandra; Kravchenko, Alexander; Litovchenko, Igor; Telychkun, Yuliia; Gubenia, Oleksii; Telychkun, Volodymyr; Dovgun, Irina
    To intensify the machining test during mixing, we suggested to use a screw as the working part of various modifications, which provide continuous transportation and intensive mechanical impact on the dough during kneading. A design model using software package Flow Vision is offered to study the process of kneading.