Detail publikačního výsledku

Heat transfer during condensation of water vapour in the presence of non-condensable gas in vertical tube of small diameter

TOMAN, F.; KRACÍK, P.; POSPÍŠIL, J.

Original Title

Heat transfer during condensation of water vapour in the presence of non-condensable gas in vertical tube of small diameter

English Title

Heat transfer during condensation of water vapour in the presence of non-condensable gas in vertical tube of small diameter

Type

WoS Article

Original Abstract

The paper deals with a detailed analysis of published analytical relations for heat transfer during steam condensation in a vertical tube. The historical development of the approaches and the chronological development of the used analytical relations are presented. Attention is focused on the description of the processes at the gas phase-condensate film interface as well as on the inclusion of the influence of the presence of non-condensable gases. The analytical relations in 12 modifications are compared with each other for the same geometrical configuration of the vertical tube and identical boundary conditions. The authors performed comparative experimental measurements of the heat transfer coefficient during condensation of the vapour-gas mixture in vertical tubes of three diameters, namely 16, 20 and 26 mm. Based on a comparison of the experimental results and analytical relations, recommendations are made on the validity interval of the tested relations.

English abstract

The paper deals with a detailed analysis of published analytical relations for heat transfer during steam condensation in a vertical tube. The historical development of the approaches and the chronological development of the used analytical relations are presented. Attention is focused on the description of the processes at the gas phase-condensate film interface as well as on the inclusion of the influence of the presence of non-condensable gases. The analytical relations in 12 modifications are compared with each other for the same geometrical configuration of the vertical tube and identical boundary conditions. The authors performed comparative experimental measurements of the heat transfer coefficient during condensation of the vapour-gas mixture in vertical tubes of three diameters, namely 16, 20 and 26 mm. Based on a comparison of the experimental results and analytical relations, recommendations are made on the validity interval of the tested relations.

Keywords

Condensation;Heat transfer;Water vapour;Non-condensable gas;Vertical tube;Experiment

Key words in English

Condensation;Heat transfer;Water vapour;Non-condensable gas;Vertical tube;Experiment

Authors

TOMAN, F.; KRACÍK, P.; POSPÍŠIL, J.

RIV year

2023

Released

01.12.2022

Publisher

Elsevier

ISBN

2214-157X

Periodical

Case Studies in Thermal Engineering

Volume

40

Number

12

State

Kingdom of the Netherlands

Pages from

1

Pages to

15

Pages count

15

URL

https://doi.org/10.1016/j.csite.2022.102519

Full text in the Digital Library

http://hdl.handle.net/11012/208570

BibTex

@article{BUT179763,
  author="Filip {Toman} and Petr {Kracík} and Jiří {Pospíšil}",
  title="Heat transfer during condensation of water vapour in the presence of non-condensable gas in vertical tube of small diameter",
  journal="Case Studies in Thermal Engineering",
  year="2022",
  volume="40",
  number="12",
  pages="1--15",
  doi="10.1016/j.csite.2022.102519",
  issn="2214-157X",
  url="https://doi.org/10.1016/j.csite.2022.102519"
}

Documents

1-s2.0-S2214157X22007560-main