Issue №: 1(104)
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.
RESEARCH OF ENERGY EFFICIENCY OF GRAIN RAW MATERIALS DRYING USING VIBRO-OZONE COMPLEX
Prysiazhniuk Dmytro – Ph.D., part-time associate professor of the Department of Machinery and Equipment for Agricultural Production of Faculty of Engineering and Technology of Vinnytsia National Agrarian University, deputy director for academic affairs of Separated structural unit «Ladyzhyn Professional College of Vinnytsia National Agrarian University» (5, P. Kravchyka St., Ladyzhyn, Vinnytsia region, 24321, Ukraine, e-mail: dima061992@yahoo.com).
In the system of technological operations of postharvest processing of grain the most important place belongs to drying. Quality drying not only ensures the storage of the harvested crop, prevents its loss, but in some cases also improves the quality of the finished product.
It is at this stage that up to 80% of the total energy of post-harvest grain processing is consumed, and the useful use of energy in the grain dryers themselves is up to 40-45%. The direction of improvement of grain drying technologies are: reduction of energy costs for moisture removal, ensuring environmental safety of the dried product, development of highly efficient grain drying equipment.
Significant intensification of the grain drying process can be achieved by using vibration on the processed material with simultaneous ozone treatment as part of the drying agent, which further reduces the energy consumption of the operation and allows to obtain a high quality final material.
In the article the energy efficiency of drying of grain raw materials with the use of vibro-ozone complex depending on the mode parameters of the studied process is experimentally investigated and rational parameters of the developed equipment are received.
Based on the obtained data, it was determined that the specific energy consumption per unit of finished product with moisture content Wf=14% at initial moisture content is: when using the classical technology with the supply of a heat agent at a temperature of 50 oC with a processing time of 240 minutes – 112,93 Wh/kg or 18,82 Wh/kg per 1% of evaporated moisture (406,54 KJ/kg or 67,75 KJ/kg per 1% of evaporated moisture); when using a complex thermophysical effect with a processing time of 160 minutes – 91,01 Wh/kg or 15,16 Wh/kg per 1% moisture evaporated (327,63 kJ/kg or 54,6 kJ/kg per 1% moisture evaporated).
Experimental studies made it possible to obtain compromise technological parameters of the investigated process of drying grain raw materials using a vibro-ozone complex, the following components: vibration acceleration a=15-20 m/s2, drying agent temperature TDA=50-55 oC, ozone concentration = 8-10 mg/m3, processing time tP=130-160 minutes with the speed of the drying agent 1,5 m/s.
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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.
