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Features of vapor bubbles evolution at liquid boiling at subatmospheric pressures. / Serdyukov, V. S.; Malakhov, I. P.; Surtaev, A. S.

In: Thermophysics and Aeromechanics, Vol. 26, No. 4, 01.07.2019, p. 623-626.

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Serdyukov VS, Malakhov IP, Surtaev AS. Features of vapor bubbles evolution at liquid boiling at subatmospheric pressures. Thermophysics and Aeromechanics. 2019 Jul 1;26(4):623-626. doi: 10.1134/S0869864319040140

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Serdyukov, V. S. ; Malakhov, I. P. ; Surtaev, A. S. / Features of vapor bubbles evolution at liquid boiling at subatmospheric pressures. In: Thermophysics and Aeromechanics. 2019 ; Vol. 26, No. 4. pp. 623-626.

BibTeX

@article{62e776a131a9457f857cf3dbcad8ddee,
title = "Features of vapor bubbles evolution at liquid boiling at subatmospheric pressures",
abstract = "The article presents the results of an experimental study of the dynamics of vaporization at water boiling at subatmospheric pressures up to 8.8 kPa. The usage of a transparent heater, high-speed video and IR thermography allowed analyzing the effect of pressure on the dynamics of vapor bubbles, the evolution of dry spots as well as the surface superheating corresponding to the onset of boiling. It is shown that the pressure reduction at a given heat flux density leads to a significant increase in the Jacob number at the activation of the nucleation site and the growth rate of vapor bubbles. It has been found that the curve of dry spots growth rate has a nonlinear dependence on the pressure in the range of 8.8-103 kPa. The minimum value of the growth rate of dry spots is observed at a pressure of 42 kPa.",
keywords = "boiling, dry spots, high-speed visualization, IR-thermography, sub-atmospheric pressure, vapor bubbles evolution",
author = "Serdyukov, {V. S.} and Malakhov, {I. P.} and Surtaev, {A. S.}",
year = "2019",
month = jul,
day = "1",
doi = "10.1134/S0869864319040140",
language = "English",
volume = "26",
pages = "623--626",
journal = "Thermophysics and Aeromechanics",
issn = "0869-8643",
publisher = "PLEIADES PUBLISHING INC",
number = "4",

}

RIS

TY - JOUR

T1 - Features of vapor bubbles evolution at liquid boiling at subatmospheric pressures

AU - Serdyukov, V. S.

AU - Malakhov, I. P.

AU - Surtaev, A. S.

PY - 2019/7/1

Y1 - 2019/7/1

N2 - The article presents the results of an experimental study of the dynamics of vaporization at water boiling at subatmospheric pressures up to 8.8 kPa. The usage of a transparent heater, high-speed video and IR thermography allowed analyzing the effect of pressure on the dynamics of vapor bubbles, the evolution of dry spots as well as the surface superheating corresponding to the onset of boiling. It is shown that the pressure reduction at a given heat flux density leads to a significant increase in the Jacob number at the activation of the nucleation site and the growth rate of vapor bubbles. It has been found that the curve of dry spots growth rate has a nonlinear dependence on the pressure in the range of 8.8-103 kPa. The minimum value of the growth rate of dry spots is observed at a pressure of 42 kPa.

AB - The article presents the results of an experimental study of the dynamics of vaporization at water boiling at subatmospheric pressures up to 8.8 kPa. The usage of a transparent heater, high-speed video and IR thermography allowed analyzing the effect of pressure on the dynamics of vapor bubbles, the evolution of dry spots as well as the surface superheating corresponding to the onset of boiling. It is shown that the pressure reduction at a given heat flux density leads to a significant increase in the Jacob number at the activation of the nucleation site and the growth rate of vapor bubbles. It has been found that the curve of dry spots growth rate has a nonlinear dependence on the pressure in the range of 8.8-103 kPa. The minimum value of the growth rate of dry spots is observed at a pressure of 42 kPa.

KW - boiling

KW - dry spots

KW - high-speed visualization

KW - IR-thermography

KW - sub-atmospheric pressure

KW - vapor bubbles evolution

UR - http://www.scopus.com/inward/record.url?scp=85075509816&partnerID=8YFLogxK

U2 - 10.1134/S0869864319040140

DO - 10.1134/S0869864319040140

M3 - Article

AN - SCOPUS:85075509816

VL - 26

SP - 623

EP - 626

JO - Thermophysics and Aeromechanics

JF - Thermophysics and Aeromechanics

SN - 0869-8643

IS - 4

ER -

ID: 22406957