Issue №: 2 (125)
The journal solves the problems of creation and improvement of machinery and technologies for agriculture: 131 - Applied Mechanics, 132 - Materials Science, 133 - Industrial Engineering, 141 - Power Engineering, Electrical Engineering and Electromechanics, 208 - Agricultural Engineering.
EXPERIMENTAL STUDIES OF THE AIR FLOW HEATING PROCESS IN A VERTICAL SOIL HEAT EXCHANGER
Vitalii YAROPUD – Candidate of Technical Sciences, Associate Professor, Dean of the Engineering and Technological Faculty of the Vinnytsia National Agrarian University (Sonyachna St., 3, Vinnytsia, Ukraine, 21008; e-mail: yaropud77@gmail.com, https://orcid.org/0000-0003-0502-1356).
The article considers the possibilities of using the soil as a source of low-potential heat in Ukraine, where it maintains a constant temperature at a depth of more than 10 meters +9…12 °C throughout the year. This creates favorable conditions for efficient use of heat pumps. The analysis of technical means of extracting thermal energy from the surface layers of the soil shows that vertical soil heat exchangers are the most effective for achieving the required parameters of the microclimate in livestock premises.
The study of the process of heating the air flow in the vertical soil heat exchanger was carried out under production conditions at the pig farm of the Agrofirma Napadivska Agricultural Company in the Vinnytsia region. To increase the efficiency of the clean air injection system, a U-shaped vertical soil heat exchanger is installed, which is connected to the ventilation system of the pig fattening room.
Research was conducted at different levels of air flow (200, 500, 800 m³/hours) and air temperature in the soil heat exchanger, which was fixed six times a day. Indicators of climatic conditions were determined by measuring temperature and air humidity, as well as by monitoring temperature dynamics throughout the year.
According to the results of experimental studies of the process of heating the air flow in a U-shaped vertical soil heat exchanger in production conditions, the dynamics of temperature changes throughout the year were determined. The obtained regression equations of the second order of changes in air flow temperature ΔTa and effective heat capacity NE from temperature Tin and expenses Qin air flow at the entrance to the U-shaped vertical soil heat exchanger.Statistical comparison of experimental data with theoretical dependence by the Pearson correlation coefficient – 0,95 and Fisher's test – F = 1,93 < Fт = 2,98 indicates the high adequacy of theoretical dependencies.
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3. Kaletnik, H.M., Yaropud, V.M. (2021). Fizyko-matematychna modelʹ ventylyatsiynoyi systemy nahnitannya chystoho povitrya u tvarynnytsʹkykh prymishchennyakh [Physico-mathematical model of the ventilation system for injecting clean air in livestock premises]. Tekhnika, enerhetyka, transport APK, 3 (114), 4–15. DOI: https://doi.org/10.37128/2520-6168-2021-3-1. [in Ukrainian].
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About the journal
G8 – Materials Science
G9 – Applied Mechanics
G10 – Metallurgy
G11 – Mechanical Engineering (by specializations)
The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:
The All-Ukrainian scientific journal “Technology, energy, agriculture transport AIC” is an open-access scientific publication that publishes the results of original research, theoretical and applied developments, as well as scientific papers in the fields of engineering sciences, energy systems, and transport technologies of the agro-industrial complex.
The main objective of the scientific journal “Technology, energy, agriculture transport AIC” is to disseminate the results of modern scientific research and to promote the development of technical, energy, and transport solutions for the agro-industrial complex through the publication of scientific materials characterized by scientific novelty and practical significance in the field of design and modernization of machinery, equipment, and technologies.
The journal’s activities are focused on supporting the development of engineering science, stimulating the implementation of innovative approaches into industrial practice, as well as ensuring effective exchange of scientific achievements among researchers, educators, engineers, and other specialists in relevant fields.
Objectives of the Journal
To achieve its defined objective, the journal ensures the implementation of the following key tasks:
· publication of the results of fundamental and applied research covering the fields of applied mechanics, mechanical engineering, materials science, energy systems, electrical engineering, electromechanics, and transport systems of the agro-industrial sector;
· promotion of the implementation of advanced technical and technological developments aimed at improving the efficiency of machinery, equipment, and production processes;
· creation of conditions for active scientific exchange among research institutions, higher education institutions, industrial enterprises, and other interested organizations;
· support for the development of interdisciplinary research and expansion of cooperation among specialists in various fields of science and technology;
· promotion of the improvement of the scientific and technical level of research related to the design, modernization, and operation of technical equipment used in agro-industrial production;
· dissemination of information on modern achievements in science and technology and the implementation of innovative technologies in the fields of technical support, energy, and transport;
· development of a scientific information environment that facilitates effective scientific communication and the integration of national research into the international scientific community.
Publication frequency: 4 issues per year
Languages of publication: Ukrainian, English
Editor-in-Chief: Vitalii YAROPUD
State Registration: Decision of the National Council of Ukraine on Television and Radio Broadcasting № 1337 and № 1180. Media Identifier: R30-05173
EDRPOU Code: 00497236
Publisher ROR: https://ror.org/05m3ysc06
Publisher DOI Prefix: 10.37128
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.
