Issue №: 3 (106)
The journal addresses the problems of creating and improving machinery and technologies for agriculture, food and processing industries, mechanical engineering, energy and transport.
PREPARATION OF A PAIR WITH CERTAIN THERMODYNAMIC PARAMETERS IN THE HEAT TECHNOLOGY SYSTEM
Tkachenko Stanislav Y. – Doctor of Technical Sciences, Full Professor, Head of the Department of
Thermal Power Engineering of Vinnytsia National Technical University (Khmelnitsky highway, 95,
Vinnytsia, Ukraine, e-mail: stahit6937@gmail.com), ORCID 0000-0002-4654-2062.
StepanovaNataliya D. – PhD, Associate Professor of the Department of Thermal Power Engineering of
Vinnytsia National Technical University (Khmelnitsky highway, 95, Vinnytsia, Ukraine, e-mail:
Stepanovand@i.ua), ORCID 0000-0002-4654-2062.
Known methods for preparing saturated steam for use in a heat engineering system are analyzed.
It was established that the flow rate of cooling water was overestimated in them, since part of this water is
drained into the drainage system of the power plant and contributes part of the heat of the primary
superheated steam there. In the proposed method for removing steam overheating before it is fed to a
specific heat exchanger, it is proposed to use condensate from the same heat exchanger, moreover, due to
evaporation of a part of the condensate (estimated 10 ... 20%), the metal consumption of the condensate
drainage system decreases. The heat and mass transfer processes in the closed loop “heat exchanger –
condensate line – desuperheater and separation device –– steam of saturated saturated steam – heat
exchanger” are analyzed, the balance equations are compiled, the degree of uncertainty of the heat
transfer and hydrodynamic processes in two-phase media is analyzed. A steam preparation system has
been developed for a heat-technological consumer, in which by using all the condensate obtained in the
steam heat exchanger as a cooler and observing a certain distance between the lower tube sheet of the
heat exchanger and the central axis of the desuperheater, the problems of condensate drainage, its
efficient use and removal of steam overheating are achieved.
[1] Tkachenko, S., Stepanova, N. (2008) Samozakypaiuchi potoky v drenazhnykh kanalakh
teplotekhnolohichnykh system .Monohrafiia [Self-accumulating flows in drainage channels of heatengineering
systems/ Monograph]. – Vinnytsia: UNIVERSUM-Vinnytsia [in Ukrainian].
[2] Kolesnikov, V., Nechaev, Y. (1980) Teplosilovoe hozyaystvo saharnyih zavodov [Thermal economy
of sugar factories] Moscow: Pischevaya prom-st [in Russian].
[3] Galin, N., Kirillov, L. Teplomassoobmen (v yadernoy energetike) [Heat exchange (
in nuclear power)] Moscow: Energoatomizdat [in Russian].
[4] Rifert, V., Gorin, V., Barabash, P., Sereda, V. (2011) Condensation inside horizontal tubes: state of
the problem and analysis of research results, 4, 57 - 68, Transactions of Academenergo.
[5] Lee, H., Mudawar, I., Hasan, M. (2013) Flow condensation in horizontal tubes, 66, 31 - 45,
International Journal of Heat and Mass Transfer.
[6] Xiaoyong, W., Xiande, F. , Rongrong, S. (2012) A comparative study of heat transfer coefficients for
film condensation., 3, 1 – 9, Energy Science and Technology.
[7] Garcia-Valladares, O. (2003) Review of in-tube condensation heat transfer correlations for smooth
and microfin tubes, 24, 6 - 24, Heat Transfer Engineering.
[8] Tkachenko, S., Stepanova, N., Stepanov, D. (2003) Dekl. Pat. 61581 UA, MKY F22G5/12. Sposib
zniattia perehrivu pary [Way to remove overheating of the steam], No 2003032028; Zaiavleno
07.03.2003; Opubl. 17.11.2003, Biul.№11 [in Ukrainian].
[9] Shiu, B., Yamamoto, S., Yuan, X. (2004) Application of Preconditioning Method to Gas Liquid
Two-phase Flow Computations, 126, 10, 606–612, Transaction of the ASME Journal of Fluids
Engineering.
[10] Mor, M., Gany, A. (2004) Analysis of Two-phase Homogeneous Bubbly Flows Including Friction
and Mass Addition, 126, 1, 102–109, Transaction of the ASME. Journal of Fluids Engineering [in
English].
[11] Baldina, O., Lokshin, V., Peterson, D. (1978) Gidravlicheskiy raschet kotelnyih agregatov :
(Normativnyiy metod) [Hydraulic calculation of boiler units (Regulatory method)] Moscow:
Energiya [in Russian].
[12] Tkachenko, S., Stepanova, N., Stepanov, D. (2000) Vtraty tysku v mistsevykh oporakh pry techii
dvofaznykh potokiv [Loss of pressure in local supports during two-phase flows], 1, 43–46, Visnyk
VPI [in Ukrainian].
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.
