Issue №: 2(117)
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.
DETERMINATION OF THE HEAT TRANSFER COEFFICIENT OF A ROTARY EVAPORATOR WITH HEATING FILM-FORMING ELEMENT
Yurii Polievoda – Ph.D., Associate Professor of the Department of technological processes and equipment for processing and food production, Vinnytsia National Agrarian University (Sonyachna st., 3, Vinnitsia, 21008, Ukraine, e-mail: vinyura36@gmail.com, https://orcid.org/0000-0002-2485-0611).
Alla Solomon – Ph.D., Associate Professor of the Department of food technology and microbiology of the Vinnytsia National Agrarian University (Sonyachna st., 3, Vinnytsia, 21008, Ukraine, e-mail: Soloalla78@ukr.net, https://orcid.org/0000-0003-2982-302Х).
Maryna Pidlypna – postgraduate student of the Department Technological processes and the possession of food processing and food production of the Vinnytsia National Agrarian University (Sonyachna st., 3, Vinnytsia, 21008, Ukraine, e-mail: petrovnamarina940@gmail.com, https://orcid.org/0000-0002-1317-2018Х).
In the article, a model of a rotary-film evaporator with a film-forming element, which has a heated reflective surface, was investigated. Such a solution was proposed to stabilize the hydraulic movement of the cut off wave flow due to the reflective surface of a certain geometric shape for the forced direction of the cut raw material to the heating surface. Autonomous heating of the reflecting surface additionally provides a temperature effect in the conditions of movement of raw material particles after cutting.
As a result of the analysis of the experimental and theoretical parameters of heat transfer, the criterion equation for the heat transfer coefficient of the evaporator with the proposed film-forming element, which has a reflective heated surface for calculating the heat transfer coefficient from the working surface to the raw material, is substantiated. The resulting equation takes into account the influence of the vertical component of the motion of the raw material film, the centrifugal movement during the rotation of the film-forming element, the mixing of the boiling film of the raw material with steam bubbles, the geometric characteristics of the film-forming blade on the hydrodynamic flow of the raw material.
Calculation of a rotary-film evaporator using a criterion equation and a useful heat exchange surface of 0,75 m2 was obtained. The specific metal content in a rotary-film evaporator with a film-forming element having a reflective surface is 57 kg/m2 compared to the vacuum evaporator traditionally used in canning industries 410 kg/m2, which is 7,1 times less. Also, the duration of the temperature effect on the raw material is reduced: a rotary-film evaporator - 200 s and 3600 s in a traditional apparatus. The obtained data will be useful for designing rotary-film apparatuses of various geometrical parameters using hinged blades with a reflective plate.
[1] Zahorulko, А., Zagorulko, А., Cherevko, О., Dromenko, О., Solomon, А., Yakobchuk, R., Bondarenko, O., Nozdrina, N. (2021). Determination of the heat transfer coefficient of a rotary film evaporator with a heating filmforming element. Eastern-European Journal of Enterprise technologies, 6 (8 (114)). 41–46. Harkіv [in English].
[2] Cherevko, O., Mykhaylov, V., Zagorulko, A., Zahorulko, A. (2018). Improvement of a rotor film device for the production of high-quality multicomponent natural pastes. Eastern-European Journal of Enterprise Technologies, 2 (11 (92)), 11– 17. Harkіv [in English].
[3] Polyevoda, Y. A., Hurych, A. J., Kutsyy, V. M. (2016). Patterns of changing settings of the temperature field at vapour-contacting heating by sterilizing products in cylindrical containers. INMATEH, 50 (3), 65–72. [in English].
[4] Palamarchuk, I. P., Yanovych, V. P., Polievoda, Yu. A., Brianskyi, V. V. (2010). Analiz matematychnoi modeli vibrovidtsentrovoho zmishuvacha dlia vyhotovlennia sukhykh molochnykh sumishei. [Analysis of a mathematical model of a vibrocentric mixer for the manufacture of dry milk formulas]. Zbirnyk naukovykh prats vinnytskoho derzhavnoho ahrarnoho universytetu, seriia tekhnichni nauky, 4, 5–12. Vinnytsia [in Ukrainian].
[5] Tsurkan, O. V., Hurych, A. Y., Polievoda, Y. A. (2014). Obhruntuvannia tekhnolohichnoi ta konstruktyvnoi skhemy avtoklava z aerodynamichnym intensyfikatorom. [Substantiation of technological and constructive scheme of autoclave with aerodynamic intensifier]. Naukovi pratsi ONAKhT, seriia tekhnichni nauky, 46, 2. 312–314. [in Ukrainian].
[6] Palamarchuk, I. P., Polievoda, Yu. A., Kutsyi, V. M. (2017). Matematychne modeliuvannia protsesu teplo masoobminu za umov parokontaktnoi sterylizatsii produktsii u tsylindrychnii tari. [Mathematical modeling of the process of heat and mass transfer under the conditions of steam contact sterilization of products in a cylindrical container]. Tekhnika, enerhetyka, transport APK, 2 (97), 64–70. Vinnytsia [in Ukrainian].
[7] Solomon, A. M., Bondar, M. M., Novhorodska, N. V. (2021). Perspektyvni napriamky vyrobnytstva kyslomolochnykh fermentovanykh produktiv z synbiotychnymy vlastyvostiamy. [Promising directions of production of fermented milk fermented products with synbiotic properties]. Prodovolchi resursy, 9 (17), 22–33. [in Ukrainian].
[8] Solomon, A. M., Polievoda, Yu. A. (2020). Obhruntuvannia skladu fermentovanykh produktiv z vykorystanniam roslynnykh napovniuvachiv. [Substantiation of the composition of fermented products using vegetable fillers]. Tekhnika, enerhetyka, transport APK, 3 (110), 126–134. Vinnytsia [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.
