Study of acoustic and low-pressure exposure on the temperature of the evaporation of a liquid with free interface before it freezes

On the basis of the first law of thermodynamics, a thermodynamic physical and mathematical model of the process of evaporation and freezing in a partially filled closed volume of a liquid under acoustic exposure (AE) and pressure reduction has been developed. The acoustic effect on the liquid is tak...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2019-11, Vol.146 (5), p.3333-3338
Main Authors: Trushlyakov, V. I., Novikov, A. A., Lesnyak, I. Y., Panichkin, A. V.
Format: Article
Language:English
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Summary:On the basis of the first law of thermodynamics, a thermodynamic physical and mathematical model of the process of evaporation and freezing in a partially filled closed volume of a liquid under acoustic exposure (AE) and pressure reduction has been developed. The acoustic effect on the liquid is taken as a component on the heating of the liquid in the closed volume. The experimental studies performed under AE (amplitude 2.0 μm, frequency 25 kHz), initial temperature, and mass of the liquid 300.85 K, 7 g, respectively, the pressure decreases from 101 to 0.5 kPa showed a close coincidence of the actual and calculated moments of freezing start liquid surfaces, as well as close calculated and experimental values of liquid temperatures during the experiment.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.5131643