Saturation Temperature and Heat Transfer During Nucleate Boiling on a Substrate

The physical parameters exerting an effect on the density of the heat flux transported by vapor bubbles during nucleate boiling are considered. It is shown that this density depends on the radius of bubble departure from the substrate, the rate of formation of departing bubbles per unit area of the...

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Bibliographic Details
Published in:Journal of engineering physics and thermophysics 2023-11, Vol.96 (7), p.1862-1866
Main Authors: Koznacheev, I. A., Malinovskii, A. I., Rabinovich, O. S., Fisenko, S. P.
Format: Article
Language:English
Subjects:
Bubbles
Classical Mechanics
Coagulation
Complex Systems
Density
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Heat flux
Heat transfer
Industrial Chemistry/Chemical Engineering
Nucleate boiling
Physical properties
Substrates
Thermodynamics
Thermophysical properties
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Summary:The physical parameters exerting an effect on the density of the heat flux transported by vapor bubbles during nucleate boiling are considered. It is shown that this density depends on the radius of bubble departure from the substrate, the rate of formation of departing bubbles per unit area of the substrate, the thermophysical properties of the liquid, and the saturation temperature. It has been established that the density of the energy flux transported by bubbles increases exponentially with the saturation temperature and depends strongly on the bubble departure radius. It is shown that the thickness of the superheated liquid layer, inside which bubbles grow, does not exceed several hundred microns and depends on the total energy flux. In this case, if the average distance between the bubbles is comparable to the departure radius, bubble coagulation leads to a boiling crisis.
ISSN:1062-0125
1573-871X
DOI:10.1007/s10891-023-02856-0