Please use this identifier to cite or link to this item: https://essuir.sumdu.edu.ua/handle/123456789/77944
Or use following links to share this resource in social networks: Recommend this item
Title Аn experimental study of heat and mass transfer in a falling liquid film evaporation into a cross flow of a neutral gas
Authors Lukashov, Volodymyr Kostiantynovych  
Kostiuchenko, Y.V.
Timofeev, S.V.
Ochowiak, M.
ORCID http://orcid.org/0000-0002-9952-0158
Keywords heat and mass transfer
cross flow
film apparatus
heat and mass return coefficient
neutral gas
Type Article
Date of Issue 2020
URI https://essuir.sumdu.edu.ua/handle/123456789/77944
Publisher Sumy State University
License
Citation Lukashov, V. K., Kostiuchenko, Y. V., Timofeev, S. V., Ochowiak, M. (2020). Аn experimental study of heat and mass transfer in a falling liquid film evaporation into a cross flow of a neutral gas. Journal of Engineering Sciences, Vol. 7(1), pp. F30–F38, doi: 10.21272/jes.2020.7(1).f3.
Abstract The work is devoted to the study of heat and mass transfer in a liquid film flowing down on a heated surface under conditions of evaporation into a crossflow of a gas neutral with respect to the liquid. The work aimed to experimentally determine the average heat transfer coefficients from a heated surface to the film, heat transfer and mass transfer from the film to the gas flow and to establish their dependence on the input parameters of the heat and mass transfer process. To achieve this goal, an experimental setup was created, and a research technique was developed based on the proposed mathematical model of the heat and mass transfer process. The results of the study showed that the dependences of the average heat and mass transfer coefficients on the initial liquid flow rate are extreme with the minimum values of these coefficients at the liquid flow rate, which corresponds to the critical value of the Reynolds criterion Re l cr ≈ 500, which indicates a transition from the laminar falling films to turbulent mode under the considered conditions. The dependences of the heat and mass transfer coefficients on other process parameters for both modes of film falling are established. A generalization of the experimental data made it possible to obtain empirical equations for calculating these coefficients.
Appears in Collections: Journal of Engineering Sciences / Журнал інженерних наук

Views

China China
1772516
Finland Finland
1
Germany Germany
1
Greece Greece
4464
Iran Iran
84
Ireland Ireland
84658
Lithuania Lithuania
1
Netherlands Netherlands
8925
South Africa South Africa
1
Sweden Sweden
2231
Taiwan Taiwan
1
Ukraine Ukraine
22515755
United Kingdom United Kingdom
6160653
United States United States
181710891
Unknown Country Unknown Country
22515754

Downloads

France France
1
Iran Iran
1
Lithuania Lithuania
1
Saudi Arabia Saudi Arabia
1
Sweden Sweden
1
Ukraine Ukraine
128645845
United Kingdom United Kingdom
234775937
United States United States
181710892
Unknown Country Unknown Country
1

Files

File Size Format Downloads
Lukashov_jes_1_2020.pdf 599,29 kB Adobe PDF 545132680

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.