Subcooled flow boiling in a flat mini-channel under local heating

Dmitry Zaitsev; Egor Tkachenko; Valentin Belosludtsev; Alexey Kreta; Oleg Kabov

doi:10.1088/1742-6596/1105/1/012142

Subcooled flow boiling in a flat mini-channel under local heating

Dmitry Zaitsev, Egor Tkachenko, Valentin Belosludtsev, Alexey Kreta, Oleg Kabov

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

With the help of advanced optical system having high spatial and time resolution, the dynamics of microbubbles was investigated during nucleate boiling of subcooled water flow in a mini-channel under localized heating from the wall. Substantial discrepancy in maximum bubble diameters was observed for the same experimental conditions. However, the growth rate for different bubbles within first 0.1 ms of their life time is almost the same. The data on the bubble dynamics was successfully generalized using available correlations from the literature. Data on the critical heat flux was obtained for different channel heights. A considerable effect of the channel height on the critical heat flux was found.

Original language	English
Article number	012142
Number of pages	6
Journal	Journal of Physics: Conference Series
Volume	1105
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1105/1/012142
Publication status	Published - 28 Nov 2018
Event	34th Siberian Thermophysical Seminar Dedicated to the 85th Anniversary of Academician A. K. Rebrov, STS 2018 - Novosibirsk, Russian Federation Duration: 27 Aug 2018 → 30 Aug 2018

Keywords

DRIVEN LIQUID-FILMS
FLUX

Access to Document

10.1088/1742-6596/1105/1/012142

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title = "Subcooled flow boiling in a flat mini-channel under local heating",

abstract = "With the help of advanced optical system having high spatial and time resolution, the dynamics of microbubbles was investigated during nucleate boiling of subcooled water flow in a mini-channel under localized heating from the wall. Substantial discrepancy in maximum bubble diameters was observed for the same experimental conditions. However, the growth rate for different bubbles within first 0.1 ms of their life time is almost the same. The data on the bubble dynamics was successfully generalized using available correlations from the literature. Data on the critical heat flux was obtained for different channel heights. A considerable effect of the channel height on the critical heat flux was found.",

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AU - Zaitsev, Dmitry

AU - Tkachenko, Egor

AU - Belosludtsev, Valentin

AU - Kreta, Alexey

AU - Kabov, Oleg

PY - 2018/11/28

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N2 - With the help of advanced optical system having high spatial and time resolution, the dynamics of microbubbles was investigated during nucleate boiling of subcooled water flow in a mini-channel under localized heating from the wall. Substantial discrepancy in maximum bubble diameters was observed for the same experimental conditions. However, the growth rate for different bubbles within first 0.1 ms of their life time is almost the same. The data on the bubble dynamics was successfully generalized using available correlations from the literature. Data on the critical heat flux was obtained for different channel heights. A considerable effect of the channel height on the critical heat flux was found.

AB - With the help of advanced optical system having high spatial and time resolution, the dynamics of microbubbles was investigated during nucleate boiling of subcooled water flow in a mini-channel under localized heating from the wall. Substantial discrepancy in maximum bubble diameters was observed for the same experimental conditions. However, the growth rate for different bubbles within first 0.1 ms of their life time is almost the same. The data on the bubble dynamics was successfully generalized using available correlations from the literature. Data on the critical heat flux was obtained for different channel heights. A considerable effect of the channel height on the critical heat flux was found.

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