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Engineering, Energy, Transport AIC

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 3 (106)

Published: 2019.11.29
DOI: 10.37128/2520-6168-2019-3


Description:
The journal addresses the problems of creating and improving machinery and technologies for agriculture, food and processing industries, mechanical engineering, energy and transport.

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PREPARATION OF A PAIR WITH CERTAIN THERMODYNAMIC PARAMETERS IN THE HEAT TECHNOLOGY SYSTEM

DOI: 10.37128/2520-6168-2019-3-14
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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.

Annotation

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.

Keywords: water vapor, steam overheating, condensate.

List of references

[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].

All journal issues

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

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:

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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).