Issue №: 4 (103)
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.
AUTOMATIC CONTROL OF THE ENERGY STATE OF THE WORKING LIQUID IN THE BIOREACTOR AT THE RESONANCE LEVEL
Melnyk Victoria, Doctor of Technical Sciences, Professor, Head of the Department of Biotechnology and Engineering Kyiv Polytechnic Institute. Igor Sikorsky, Faculty of Biotechnology and Biotechnology, vmm71@i.ua, 0936999568
Kosovа Vera Assistant of the Department of Biotechnology and Engineering, Kyiv Polytechnic Institute. Igor Sikorsky, Faculty of Biotechnology and Biotechnology, vera_62@ukr.net, 0665445843
Zhukovska Karina student, Kyiv Polytechnic Institute named after Igor Sikorsky, Faculty of Biotechnology and Biotechnology, zhukovskayakarina07@gmail.com, 0442049451
The absence of mechanical mixing devices and perfect heat and mass transfer and intensive aeration of the working fluid significantly increase the productivity and quality of the technological process, which determines the relevance of the studied problem. The aim is to increase the productivity of the technological process, which is solved by intensifying heat and mass transfer throughout the apparatus by remote artificial formation of the resonant state of the culture medium and the energy activity of the working fluid generated by this state. The task of the work is the artificial formation of the energy activity of the working fluid in the bioreactor using an ultrasonic beam. The research methodology is based on classical methods of theoretical mechanics, methods of mathematical physics, theory of thin shells, which ensures the reliability and reliability of the results. One of the possible technical solutions of artificial formation of energy activity of the working fluid in the bioreactor by means of an ultrasonic beam is given. The conditions for the occurrence of wave coincidence, which is accompanied by a sharp increase in energy activity along with minimal dissipation of radiation waves, are outlined. The nature of additional energy activity in the zones of caustic surfaces by two types of waves is explained. The process of culturing organisms, like most heterogeneous chemical reactions, directly depends on the amount of gas dissolved in the liquid and the formation and accumulation of the target product, in particular biomass. Thus, increasing the degree of dissolution of the gas in the liquid phase of the reactions will reduce its consumption and reduce energy consumption for aeration. The constructed calculation schemes and the received results allow to estimate adequacy of theoretical decisions by initial assumptions and, thus, to confirm their expediency for the further practical realization. The spatial resonance created inside the housing by ultrasonic emitters turbulizes the entire liquid-phase component of the housing and causes the gas bubbles to move without hindrance not only upwards, but also in other various directions, keeping them longer in the working fluid, thus enriching the mixture. creating conditions for intensive cell growth.
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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.
