Issue |
MATEC Web Conf.
Volume 115, 2017
XXXIII Siberian Thermophysical Seminar (STS-33)
|
|
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Article Number | 05018 | |
Number of page(s) | 5 | |
Section | Chapter 5 Heat and mass transfer in multiphase flows | |
DOI | https://doi.org/10.1051/matecconf/201711505018 | |
Published online | 10 July 2017 |
Heat transfer of bubbly flow on inner wall of annular channel
1 Kutateladze Institute of Thermophysics, Novosibirsk, 630090, Acad. Lavrentiev ave., 1, Russia
2 Novosibirsk State University, Novosibirsk, 630090, Pirogova, 2, Russia
* Corresponding author: lobanov@itp.nsc.ru
Experimental investigations of heat transfer from the heated wall to the two-phase bubbly flow were performed in vertical annular channel using air-water system. The IR-thermography and miniature temperature sensors were used to measure heat transfer coefficients. The influence of bubbles on heat transfer is shown in comparison with the case of single phase flow. The presence of bubbles in the flow leads to heat transfer intensification in the annular channel even for low void fractions.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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