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Theoretical study on motion of potato tuber on surface of separator

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dc.contributor.authorBulgakov, V.
dc.contributor.authorNikolaenko, S.
dc.contributor.authorRuzhylo, Z.
dc.contributor.authorFedosiy, I.
dc.contributor.authorNowak, J.
dc.contributor.authorOlt, Jüri
dc.contributor.departmentEstonian University of Life Sciences. Institute of Technologyeng
dc.date.accessioned2020-06-10T06:52:18Z
dc.date.available2020-06-10T06:52:18Z
dc.date.issued2020
dc.description.abstractThe aim of the study was to determine the optimal design and kinematic parameters of the separator that cleans potatoes from impurities and has a design of the spiral type. The authors have devised a highly efficient design of the spiral type potato heap separator, in which the motion of the potato tubers takes place in the channel formed by two spiral members made in the form of cylindrical spiral springs. In order to substantiate the optimal kinematic and design parameters of the new spiral type potato heap separator, the authors have generated a mathematical model of the motion of a single potato tuber on the cleaning surface formed by two spirals. As a result of solving the obtained analytical expressions, the graphical relations between the parameters of the investigated process of the motion of a single potato tuber body situated between two adjacent spirals have been plotted, which has enabled selecting the optimal design and kinematic parameters of the spiral separator. It has been established in the completed investigation that the angular velocity of rotation of the cleaning rolls has to be within the range of 27 40 rad s -1 in order to ensure the efficient transportation and cleaning of the potato tuber with a diameter of 50 mm that moves on the surface of the spiral with a radius of 75 mm wound from the round bar with a diameter of 15 mm, in case the spirals are mounted with an eccentricity of 10 mm. By analysing the kinematics of motion of the potato tuber on the surface of the spiral type cleaning machine, in case the tuber contacts the spirals at two points, it has been established that the increase of the angular velocity of rotation of the spirals results in the respective growth of the transportation capacity of the cleaning tool, while the separating efficiency at the same time becomes reduced to some extent.eng
dc.identifier.issn1406-894X
dc.identifier.publicationAgronomy Research, 2020, vol. 18, Special Issue 1, pp. 742–754eng
dc.identifier.urihttp://hdl.handle.net/10492/6032
dc.identifier.urihttps://doi.org/10.15159/ar.20.131
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ; openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectcleaningeng
dc.subjectimpurityeng
dc.subjectpotatoeng
dc.subjectqualityeng
dc.subjectseparator efficiencyeng
dc.subjectspiraleng
dc.subjecttransportationeng
dc.subjectarticleseng
dc.titleTheoretical study on motion of potato tuber on surface of separatoreng
dc.typeArticleeng

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2020, Vol. 18, Special Issue 1