Issue №: 1 (132)
The journal presents the results of scientific research and addresses current issues in the development and improvement of agricultural equipment and technologies, particularly in the design, production, and operation of machines and technical systems in the agro-industrial complex, including aspects of their efficient functioning.
ENSURING GRAIN CLEANING IN BLACKOUT CONDITIONS: SUBSTITUTION AND MINIMIZATION OF ENERGY CONSUMPTION OF AIR AND SIEVE SEPARATION OF GRAIN MATERIALS
Yevhenii KOBAN – postgraduate student of the Department of Agricultural Machine Building of Central Ukrainian National Technical University (8 Universytetskyi Ave., Kropyvnytskyi, 25006, Ukraine; e-mail: EvgeniyKoban@gmail.com; https://orcid.org/0009-0009-2213-4679).
Oleksiy VASYLKOVSKY – Candidate of Technical Sciences, Professor of the Department of Agricultural Machine Building of Central Ukrainian National Technical University (8 Universytetskyi Ave., Kropyvnytskyi, 25006, Ukraine; e-mail: olexa74@ukr.net; https://orcid.org/0000-0001-9590-742X).
Petro LUZAN – Candidate of Technical Sciences, Associate Professor of the Department of Agricultural Machine Building of Central Ukrainian National Technical University (8 Universytetskyi Ave., Kropyvnytskyi, 25006, Ukraine; e-mail: luzanpg@ukr.net; https://orcid.org/0000-0002-1819-999X).
Dmytro PETRENKO – Candidate of Technical Sciences, Associate Professor of the Department of Agricultural Machine Building of Central Ukrainian National Technical University (8 Universytetskyi Ave., Kropyvnytskyi, 25006, Ukraine; e-mail: petrenko.dimitriy@gmail.com; https://orcid.org/0000-0002-3151-8123).
The article is devoted to the problem of ensuring effective cleaning of grain materials at minimal electricity consumption, which is relevant for wartime conditions and unstable energy supply. Based on elements of probability theory, a mathematical model of the sieve separation process for sieves with slots of variable size has been developed and the dependence of cleaning efficiency on the design parameters of the sieve and the speed regime has been theoretically substantiated. The relationship between the live cross-section coefficient of the sieve cloth and the specific energy consumption of the process has been analytically established: it is shown that an increase in the live cross-section coefficient from kl = 0,50 to kl = 0,95 reduces the specific electricity consumption from 0.35-0.55 to 0.18-0.28 kWh/t. The condition for automatic self-cleaning of sieves with slots of variable size was derived, which eliminates the need for a separate cleaning device and provides savings of 0.08-0.15 kWh/t. The theory of gravitational aspiration of the grain flow was developed: an expression for the ejection velocity of air in a vertical channel was obtained and it was shown that at a productivity of 10 t/h and a free fall height of 1.0 m, an air flow velocity of ≈ 0.94 m/s is achieved, sufficient for the separation of light impurities without external energy consumption. It is substantiated that the use of string screens with a live cross-section coefficient of 93-99% in combination with a gravitational aspiration zone allows reducing the total specific electricity consumption from 0.75-1.20 to 0.18-0.35 kWh/t (savings of about 74%). The concept of a minimum-energy grain cleaning machine based on four functional blocks is proposed: a string screen, a lightweight vibrating screen, a gravitational aspiration zone and a LiFePO4 battery power module with a capacity of 10-20 kWh, suitable for power supply from battery stations or photovoltaic panels in conditions of power outages.
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About journal
The magazine "Engineering, Energy, Transport AIC" is included in the list of scientific professional editions of Ukraine on technical sciences
(Category "Б", Order of the Ministry of Education and Science of Ukraine dated 02.07.2020 №886)
According to the decision of National Council of Television and Radio Broadcasting of Ukraine from 25.04.2024 No. 1337 the scientific journal «Engineering, Energy, Transport AIC» has the ID of the Media R30-05173.
The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:
Certificate of state registration of mass media: No. 21906-11806 P dated 03/12/2016.
Founder of the journal: Vinnytsia National Agrarian University
Type of publication: journal
Kind of publication: scientific
Publication status: domestic
Year of foundation: 1997
Periodicity: 4 times per year
Volume: 18-20 conv. print. sheet (А4)
ISSN: 2520-6168 (print version), (online version)
Language of publication: (mixed languages) Ukrainian, English
The sphere of distribution and category of readers: national, foreign, faculty, scientists, entrepreneurs.
The periodical edition is included to the List of scientific professional publications of Ukraine on technical sciences, approved by order of the Ministry of Education and Science of Ukraine in 05.16.2016, No. 515.
The journal "Engineering, Energy, Transport AIC" is included in the "Catalog of Ukrainian Publications".
Subscription to the journal can be issued in each post office. The subscription index is 99720.
Technology, energy, agriculture transport AIC is a scholarly professional journal with a long-standing history and stable academic tradition, reflecting the evolution of engineering and technical sciences within the agro-industrial sector of Ukraine.
The journal was founded in 1997 under the title Bulletin of Vinnytsia State Agricultural Institute. According to the Resolution of the Presidium of the Higher Attestation Commission of Ukraine dated September 11, 1997, the publication obtained the status of a professional scientific journal, which enabled the publication of the main results of doctoral and candidate dissertations in technical sciences. From its inception, the journal positioned itself as an academic platform for addressing current issues of mechanization, electrification, and technical support of agricultural production.
During 2001–2014, the journal was published under the title Proceedings of Vinnytsia National Agrarian University. Series: Technical Sciences (State Registration Certificate of Print Media KV No. 16644-5116 PR dated April 30, 2010). Throughout this period, a systematic approach to the selection and peer review of scientific manuscripts was established, the thematic scope of publications was expanded, and continuity of scientific directions as well as the development of sectoral engineering schools was ensured.
Since 2015, the journal has been published under its current title, Technology, energy, agriculture transport AIC (State Registration Certificate No. 21906-11806 R dated March 12, 2016). The change of title reflected the expansion of the journal’s thematic coverage and its orientation toward interdisciplinary research in mechanical engineering, energy systems, electrical engineering, transport technologies, automation, and digital solutions for the agro-industrial complex.
The journal consistently adheres to the principles of open science. All published materials are distributed under the Creative Commons Attribution 4.0 International License (CC BY 4.0), ensuring open access to research results provided proper attribution to the authors and the original publication is maintained.
At present, Technology, energy, agriculture transport AIC is an authoritative professional scientific journal (Category B), providing a platform for the publication of fundamental and applied research results, promoting the integration of education, science, and industry, and contributing to the advancement of engineering and technological support of the agro-industrial complex of Ukraine.
