Nucleation of a Vapor Phase and Vapor Front Dynamics Due to Boiling-Up on a Solid Surface

Author:

Kotov Artem N.1,Gurashkin Aleksandr L.1,Starostin Aleksandr A.1,Lukianov Kirill V.1,Skripov Pavel V.1

Affiliation:

1. Institute of Thermal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg 620016, Russia

Abstract

The effect of temperature and pressure on the nucleation of the vapor phase and the velocity of the vapor front in the initial stage of activated boiling-up of n-pentane on the surface of a quartz fiber was studied. Using a developed approach combining the “pump-probe” and laser Doppler velocimetry methods, this velocity was tracked in the course of sequential change in the degree of superheating with respect to the liquid–vapor equilibrium line. The studied interval according to the degree of superheating was 40–100 °C (at atmospheric pressure). In order to spatiotemporally localize the process, the activation of boiling-up at the end of the light guide was applied using a short nanosecond laser pulse. A spatial locality of measurements was achieved in units of micrometers, along with a time localization at the level of nanoseconds. An increase in temperature at a given pressure was found to lead to an increase in the speed of the transition process with a coefficient of about 0.2 m/s per degree, while an increase in pressure at a given temperature leads to a decrease in the transition process speed with a coefficient of 25.8 m/s per megapascal. The advancement of the vapor front velocity measurements to sub-microsecond intervals from the first signs of boiling-up did not confirm the existence of a Rayleigh expansion stage with a constant velocity.

Funder

Russian Science Foundation

Publisher

MDPI AG

Subject

Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction

Reference37 articles.

1. Vapor Explosions;Berthoud;Annu. Rev. Fluid Mech.,2000

2. Sazhin, S.S. (2022). Droplets and Sprays: Simple Models of Complex Processes, Springer.

3. Antonov, D.V., Fedorenko, R.M., Yanovskiy, L.S., and Strizhak, P.A. (2023). Physical and Mathematical Models of Micro-Explosions: Achievements and Directions of Improvement. Energies, 16.

4. Skripov, V.P., Sinitsyn, E.N., Pavlov, P.A., Ermakov, G.V., Muratov, G.N., Bulanov, N.V., and Baidakov, V.G. (1988). Thermophysical Properties of Liquids in the Metastable (Superheated) State, Gordon and Breach Science Publishers.

5. Debenedetti, P.G. (1996). Metastable Liquids: Concepts and Principles, Princeton University Press.

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