Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Effect of subatmospheric pressures on heat transfer, vapor bubbles and dry spots evolution during water boiling. / Surtaev, Anton; Serdyukov, Vladimir; Malakhov, Ivan.
в: Experimental Thermal and Fluid Science, Том 112, 109974, 01.04.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Effect of subatmospheric pressures on heat transfer, vapor bubbles and dry spots evolution during water boiling
AU - Surtaev, Anton
AU - Serdyukov, Vladimir
AU - Malakhov, Ivan
PY - 2020/4/1
Y1 - 2020/4/1
N2 - The present paper reports the results of the comprehensive experimental investigation of an influence of subatmospheric pressures on multiscale heat transfer characteristics during liquid pool boiling. Experiments were carried out in the pressure range of 8.8–103 kPa at saturated water boiling using high-speed IR thermography, high-speed visualization from different sides and the specially designed transparent ITO heater. This made it possible to obtain simultaneously extensive data set on the effect of reduced pressure on main characteristics of boiling, including heat transfer coefficients, nucleation site density, growth rate and departure diameter of vapor bubbles. High-speed visualization from a bottom side of transparent heater allowed to investigate an evolution of dry spots bounded by triple contact line depending on pressure for the first time. It was demonstrated that the growth rate of dry spots is constant in time and has a non-monotonic dependence on pressure.
AB - The present paper reports the results of the comprehensive experimental investigation of an influence of subatmospheric pressures on multiscale heat transfer characteristics during liquid pool boiling. Experiments were carried out in the pressure range of 8.8–103 kPa at saturated water boiling using high-speed IR thermography, high-speed visualization from different sides and the specially designed transparent ITO heater. This made it possible to obtain simultaneously extensive data set on the effect of reduced pressure on main characteristics of boiling, including heat transfer coefficients, nucleation site density, growth rate and departure diameter of vapor bubbles. High-speed visualization from a bottom side of transparent heater allowed to investigate an evolution of dry spots bounded by triple contact line depending on pressure for the first time. It was demonstrated that the growth rate of dry spots is constant in time and has a non-monotonic dependence on pressure.
KW - Boiling
KW - Bubble dynamics
KW - Dry spot evolution
KW - Multiscale heat transfer
KW - Subatmospheric pressure
KW - BEHAVIOR
KW - CONTACT-LINE
KW - INFRARED THERMOMETRY
KW - MICROLAYER
KW - FLUX
KW - DEPARTURE DIAMETER
KW - GROWTH-RATES
KW - DYNAMICS
KW - SURFACE
KW - POOL
UR - http://www.scopus.com/inward/record.url?scp=85074768694&partnerID=8YFLogxK
U2 - 10.1016/j.expthermflusci.2019.109974
DO - 10.1016/j.expthermflusci.2019.109974
M3 - Article
AN - SCOPUS:85074768694
VL - 112
JO - Experimental Thermal and Fluid Science
JF - Experimental Thermal and Fluid Science
SN - 0894-1777
M1 - 109974
ER -
ID: 22336455