Issue №: 4(115)
The journal deals with the problems of vibration technologies and machines, mathematical methods of vibration process studies, information on design and technological development, presents teaching and methodological aspects of teaching in the Higher School of Applied Sciences, where vibration machines and technologies are studied.
WAYS TO INCREASE THE INTENSITY OF THE WALNUT DRYING PROCESS
Tsurkan Oleh – D.Eng.Sc., professor of the Department of technological processes and equipment of processing and food industries of Faculty of Engineering and Technology of Vinnytsia National Agrarian University, director of Separated structural unit «Ladyzhyn Professional College of Vinnytsia National Agrarian University» (5, P. Kravchyka St., Ladyzhyn, Vinnytsia region, 24321
Spirin Anatoly - candidate of technical sciences, associate professor, teacher of Separate structural subdivision «Ladyzhyn vocational college of Vinnytsia National Agrarian University» (Kravchik Petro St., 5, Ladyzhyn, Vinnytsia Region, Ukraine, 24321, e-mail: spirinanatoly16@gmail.com.
Didyk Andrii – postgraduate student of the Department of Engineering Mechanics and Technological Processes in the Agro-Industrial Complex of the Faculty of Engineering and Technology of Vinnytsia National Agrarian University (3 Sunny Street, Vinnytsia, 21008, Ukraine, +380972830537, anddidyk99@gmail.com, https://orcid.org/0000-0002-0524-0017)
Bondarenko Mykola – Applicant of the second (educational and scientific level) of higher education under the educational and scientific program "Agricultural Engineering", Faculty of Engineering and Technology, Vinnytsia National Agrarian University (3 Soniachna Str., Vinnytsia, 21008, Ukraine, +380689609520, bondarenko29012901@gmail.com)
Drying is the most important process in the processing of plant products, including walnuts. Convective heat dryers are the most common in agriculture due to their high energy efficiency, relative simplicity of design and reliability in operation. Modern serial convective dryers consume 5-7 times more energy than an "ideal" dryer. Intensification of the drying process can be carried out in two main ways – by increasing the temperature difference between the drying agent and the material and improving the heat exchange conditions between them. When drying walnuts, the most acceptable way is to increase the heat exchange coefficient between the coolant and the nuts. To accomplish this goal, the authors suggest applying a vibrational effect to a layer of nuts. The versatile direction of the vibration action makes it possible to reduce the aerodynamic resistance of the layer, increase the contact area of the material and the drying agent, and turbulize the boundary layer between them. To implement the presented provisions, a fundamentally new structural and technological scheme of a convective-vibration dryer was proposed. The innovative approaches used in its functioning made it possible to improve the quality indicators of walnuts in the process of storage and processing. The use of a complex convective-vibration method of drying walnuts made it possible to reduce the value of energy for the evaporation of 1 kg of moisture to 3.9 MJ compared to 5-6 MJ for modern serial dryers. The results of the production inspection confirmed the correctness of the proposed approaches. Further research in the intensification of the convective-vibration dryer should be aimed at determining the rational parameters of the vibration effect, choosing a compromise solution between the costs of implementing vibrational vibrations of the walnut layer and the energy spent on their creation.
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About the journal
The journal "Vibrations in Engineering and Technologies" is included in the list of technical scientific publications of Ukraine
(Category "B", Order of the Ministry of Education and Science of Ukraine dated July 2, 2020 No. 886)
Old version of the site: http://vibrojournal.vsau.edu.ua/
The journal "Vibrations in Engineering and Technology" is indexed by the following databases and catalogs:
The certificateof massmedia State registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University
The journal is devoted to highlighting current issues in engineering, mechanical engineering, and technological processes, including the study of dynamic and oscillatory phenomena in technical systems, the application of mathematical methods for process modeling and analysis, as well as the presentation of results of design-engineering and technological developments. Particular attention is given to the study of vibration processes and their application in modern technologies.
The purpose of the scientific journal “Vibrations in Engineering and Technologies” is to disseminate the results of fundamental and applied research in the field of engineering sciences aimed at developing theoretical foundations and practical approaches to the design, analysis, and improvement of machines, materials, and technological processes, including the use of vibration and oscillatory effects in various sectors of production.
The publication is focused on the formation of a modern scientific and informational environment for the effective exchange of research results, support of innovative development, and implementation of advanced technical solutions in industry, agro-industrial production, and related fields.
The journal promotes the development of interdisciplinary research, the integration of modern engineering approaches, and the enhancement of the efficiency of technological processes and technical systems, including through the rational use of vibration phenomena.
Objectives of the Scientific Journal
To achieve its stated purpose, the journal addresses the following key objectives:
dissemination of results of fundamental and applied scientific research in the fields of mechanics, mechanical engineering, technological processes, machine dynamics, and equipment, as well as in areas related to the application of vibration phenomena in engineering and technologies;
promotion of research aimed at the creation and improvement of machines, mechanisms, and technological equipment based on oscillatory and vibration processes;
support for the implementation of modern technological solutions focused on improving productivity, energy efficiency, and reliability of technical systems;
обеспечение scientific exchange of research results among research institutions, higher education establishments, and industrial enterprises;
development of interdisciplinary cooperation among researchers in the fields of mechanics, materials science, material processing technologies, and automation of technological processes;
dissemination of modern scientific achievements and advanced technologies related to the application of vibration processes in production and technical systems.
Publisher Vinnytsia National Agrarian University
In June 1994 the 2nd International Scientific and Technical Conference "Application of vibrations for technological purposes" was organized on the basis of Vinnytsia State Agricultural Institute. Leading experts in this field, noting the significant contribution to the school of Vibration Engineering under the leadership of P. S. Bernyk, proposed to create a professional all-Ukrainian scientific and technical journal "Vibration in engineering and technology..The journal was foundedat Vinnytsia State Agricultural Institute and P.S. Bernyk was elected to be the chief editor .
For all these years (since 1994) theJournal "vibration in engineering and technology" published 119 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Ihor Kupchuk, Candidate of Technical Sciences, Associate professor, Associate Professor of the Department of Engineering Mechanics and Technological Processes in the Agricultural Industry Faculty of Engineering and Technology Vinnytsia National Agrarian University is the chief editor of the "Vibrations in engineering and Technology"
The journal "Vibration in Engineering and technology", which has no analogues on the territory of Ukraine, is well known abroad.
