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 journal
The journal "Vibrations in engineering and technology" presents materials on the following issues
• Theory of processes and machines
• Mechanical Engineering and materialprocessing
• Processing and food production
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
Kind of publication: journal
Type of publication : Scientific
Publication status: Domestic
Year of founding:
Periodicity: 4 times a year
Extent: 18.75 nominal printed pages
ISSN: 2306-8744 (printed version), (online)
Language of edition : (mixed languages) Ukrainian, English
The scope of the distribution and the category of readers: national, foreign, teaching staff, scientists, businessmen.
Periodical is included in the list of scientific professional editions of Ukraine approved by the Order of Ministry of Education and Sciences of Ukraine from 21.12.2015 No. 1328.
The journal "Vibrations in engineering and technology" is included in the "Catalogue of periodicals of Ukraine".
Journal subscription can be executed in each post office department.
Subscription Index is 99720.
Old version of site: http://vibrojournal.vsau.edu.ua/
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 94 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Kaletnik H.M PhD , professor, academician NAAS 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.
