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Engineering, Energy, Transport AIC

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 1(116)

Published: 2022.04.29
DOI: 10.37128/2520-6168-2022-1


Description:
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.

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SIMULATION OF HEAT AND MASS EXCHANGE PROCESS HEAT EXCHANGER OF SIDE-EVAPORATIVE TYPE

DOI: 10.37128/2520-6168-2022-1-1
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Grygorii Kaletnіk – academician of the NAAS of Ukraine, Doctor of Economics, Professor, Head of the Department of Administrative Management and Alternative Energy Sources of Vinnitsa National Agrarian University (Soniachna Str., 3, Vinnitsa, Ukraine, 21008, e-mail: rector@vsau.org, https://orcid.org/0000-0002-4848-2796).

Vitalii Yaropud – Candidate of Technical Sciences, Associate Professor of the Department of machinery and equipment for agricultural production of Vinnytsia National Agrarian University (St. Soniachna, 3, Vinnytsia, Ukraine, 21008, e-mail: yaropud77@gmail.com, https://orcid.org/0000-0003-0502-1356).

Annotation

It is known that the share of influence of the microclimate on the productivity of animals is about 20-25%. In the process of life, animals emit a large amount of heat, moisture, harmful gases, including carbon dioxide, ammonia and hydrogen sulfide. If the ventilation system does not work satisfactorily, the concentration of water vapor and harmful gases may exceed the standards, as a result of which animals drastically reduce productivity and may die. Currently, when creating livestock enterprises, it is necessary to resolve issues related to the reduction of investments, 40% of which is equipment. More than 20% of the cost of equipment falls on the heating and ventilation system; it is on it that they most often try to save money. Disagreements often arise between specialists on the deviation of microclimate parameters from optimal values for the productive qualities of farm animals.
The article presents the physical and mathematical apparatus and methods for simulating the process of heat and mass transfer in an indirect-evaporative type heat exchanger for livestock buildings. The description of the process of heat and mass transfer in the heat exchanger of the indirect evaporative type of the Maisotsenko cycle is complex and requires the solution of many important mathematical problems (for example, the algorithmic solution of the combined heat and mass transfer on the surface with existing walls). Of particular importance is the development of an efficient algorithm that allows one to calculate differential equations of heat and mass transfer in partial derivatives. Therefore, the aim of the research is to describe the physical and mathematical apparatus and simulation technique (numerical simulation) of the heat and mass transfer process in an indirect evaporative type heat exchanger. As a result of analytical studies, the physico-mathematical apparatus of the process of heat and mass transfer in the heat exchanger of the indirect evaporative type of the Maisotsenko cycle was compiled, including the energy balance equation, taking into account sensitive and latent heat transfer on the surface of the wall of the wet and dry channels. The initial and limiting conditions of the heat and mass transfer model in the working part of the evaporative cooler under study are determined, which form the basis of numerical simulation in the Star CCM+ software package. A simulation technique (numerical modeling) has been developed and preliminary studies of the heat and mass transfer process in the heat exchanger of the indirect evaporative type of the Maysocenka cycle have been carried out. As a result of numerical simulation, the distributions of the temperature field, the vector field of velocities and the absolute humidity of the air flow in the heat exchanger of the indirect evaporative type of the Maysocenka cycle were obtained.

Keywords: microclimate, cooling, heat exchanger, parameters, Maisotsenko cycle, numerical simulation, dependence

List of references

[1]     Kaletnik, G.M. (2019). Perspektyvy pidvyshchennya enerhetychnoyi avtonomiyi pidpryyemstv APK v ramkakh vykonannya enerhetychnoyi stratehiyi Ukrayiny [Prospects for increasing the energy autonomy of agricultural enterprises in the framework of the energy strategy of Ukraine]. Bulletin of Agrarian Science of the Black Sea Region. 4. 90–98. [in Ukrainian].
[2]     Kaletnik, G.M., Honcharuk, I.V. (2020). Ekonomichni rozrakhunky potentsialu vyrobnytstva vidnovlyuvalʹnoyi bioenerhiyi u formuvanni enerhetychnoyi nezalezhnosti ahropromyslovoho kompleksu [Economic calculations of the potential of renewable bioenergy production in the formation of energy independence of the agro-industrial complex]. Economics of agro-industrial complex. 2020. 9. 6–16. DOI: 10.32317/2221-1055.202009006. [in Ukrainian].
[3]     Duan, Z., Changhong, Z., Zhang, X., Mustafa, M., Alimohammadisagvand, B., Hasan, A., Zhao, X. (2012). Indirect evaporative cooling: Past, present and future potentials. Renewable and Sustainable Energy Reviews. 2012. 16: 6823–6850. [in English].
[4]     Riangvilaikul, B., Kumar, S. (2010). An experimental study of a novel dew point evaporative cooling system. Energy Buildings. 42: 637–644. [in English].
[5]     Pryshlyak, V.M., Yaropud, V.M. (2014). Analiz i klasyfikatsiya tekhnolohichnykh skhem teploutylizatoriv dlya tvarynnytsʹkykh prymishchen. Scientific and theoretical collection «Bulletin of ZhNAEU». 2(45), t. 4. p. ІІ. 344–350. [in Ukrainian].
[6]     Yaropud, V.M. (2020). Doslidzhennya protsesu funktsionuvannya ta optymizatsiya konstruktyvno-tekhnolohichnykh parametriv trytrubnoho rekuperatora. Machinery, energy, transport of agro-industrial. 1 (108). 142–150. DOI: 10.37128/2520-6168-2020-1-16. [in Ukrainian].
[7]     Yaropud, V. (2021). Analytical study of the automatic ventilation system for the intake of polluted air from the pigsty. Scientific horizons. 24 (3). 19–27. DOI: 10.48077/scihor.24(3).2021.19-27 [in English].
[8]     Kaletnik, G.M., Yaropud, V.M. (2021). Fizyko-matematychna modelʹ ventylyatsiynoyi systemy nahnitannya chystoho povitrya u tvarynnytsʹkykh prymishchennyakh. Machinery, energy, transport of agro-industrial. 3 (114). 4–15. DOI: 10.37128/2520-6168-2021-3-1 [in Ukrainian].
[9]     Kaletnik, G.M., Yaropud, V.M. (2021). Teoretychni doslidzhennya pnevmovtrat povitryanoho teploobminnyka pobichno-vyparnoho typu tvarynnytsʹkykh prymishchen. Machinery & Energetics. Journal of Rural Production Research. Kyiv. 12 (4). 35–41. [in Ukrainian].
[10]     Agency, I.E. (2013). Transition to Sustainable Buildings: Clean Energy Solutions Center Book Launch. [in English].
[11]     Anisimov, S., Pandelidis, D. (2015). Theoretical study of the basic cycles for indirect evaporative air cooling. International Journal of Heat and Mass Transfer. 84: 974–989. [in English].
[12]     Gillan, L. (2008). Maisotsenko cycle for cooling process. Clean Air. 9: 1–18. [in English].
[13]     Maisotsenko, V., Gillan, L. Gillan, A.H.T. (2000). Method and plate apparatus for dew point evaporative cooler. USA Patent US 7197887 B2. [in English].
[14]     Elberling, L. (2006). Laboratory Evaluation of the Coolerado Cooler-Indirect Evaporative Cooling Unit. Pacific Gas and Electric Company (Report). [in English].
[15]     Zhan, C., Zhao, X., Smith, S., Riffat, S.B. (2011). Numerical study of a M-Cycle cross-flow heat exchanger for indirect evaporative cooling. Building and Environment. 46: 657–668. [in English].
[16]     Tertipis, D. (2014). Modelling and experimental evaluation of evaporative cooling systems, Athens, Greece. Thesis submitted to the University of Athens for the degrees of Doctor of Philosophy. [in English].

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About journal

Topics of the journal:

131 - Applied Mechanics

132 - Materials Science

133 - Industry engineering

141 - Power engineering, electrical engineering and electromechanics

208 - Agricultural engineering

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)

Old version of site: http://tetapk.vsau.edu.ua, http://techjournal.vsau.org

The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:

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Key information:
ISSN (print): 2520-6168
DOI: 10.37128/2520-6168

Certificate of state registration of mass media: No. 21906-11806 P dated 03/12/2016.

Founder of the journal: Vinnytsia National Agrarian University

Editor-in-chief: Oleksii Tokarchuk - Ph.D., Associate Professor, VNAU (Vinnytsia)

Deputy Editor-in-Chief: Natalia Veselovska - Doctor of Technical Sciences, Full Prof., VNAU (Vinnytsia)

Executive Secretary: Yuriy Polevoda- Ph.D., Associate Professor, VNAU (Vinnytsia)

Members of the Editorial Board:

Tokarchuk O.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Veselovska N.R. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Agrarian University

Polevoda Yu.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Jordan Todorov Maximov - Doctor of Technical Sciences, Full Professor, Technical University of Gabrovo (Bulgaria)

Bulgakov V.M. - Doctor of Technical Sciences, Full Professor, Acad. NAAS, National University of Life and Environmental Sciences of Ukraine

Hraniak V.F. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Ivanchuk Y.V. - Doctor of Technical Sciences, Associate Professor, Vinnytsia National Technical University

Iskovich-Lototsky R.D. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Technical University

Kupchuk I.M. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Sevostianov I.V. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Agrarian University

Spirin A.V. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Tverdokhlib I.V. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Tsurkan A.V. - Doctor of Technical Sciences, Associate Professor, Vinnytsia National Agrarian University

Yaropud V.M. - Ph.D., Associate Professor, 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.

History of journal:

It was founded in 1997 under the title "Bulletin of the Vinnitsa State Agricultural Institute." According to the Decree of the Presidium of the Higher Attestation Commission of Ukraine of September 11, 1997, this publication received the status of a professional in which it is allowed to publish the main results of dissertation researches.

In 2001-2014 the journal published under the title “Collection of scientific works of Vinnytsia National Agrarian University. Series: Technical Sciences "(Certificate of State Registration of Mass Media KV No. 16644-5116 PR of 04/30/2010).

Since 2015 journal has title "Engineering, Energy, Transport AIC" (Certificate of State Registration of Mass Media No. 21906-11806 P dated 03/12/2016).