Evaporation of liquid under acoustic-vacuum exposure

Case Studies in Thermal Engineering

V.I. Trushlyakov¹  I.Y. Lesnyak¹  A.V. Panichkin² 

[1] Department of Avia and Rocket Building, Omsk State Technical University, 11 Mira Street, Omsk, 644050, Russia;Sobolev Institute of Mathematics of the Siberian Branch of Russian Academy of Sciences, 4 Acad. Koptyug Avenue, Novosibirsk, 630090, Russia;

关键词: Evaporation;    Liquid;    Steam bubbles;    Acoustic-vacuum exposure;    Pontryagin maximum principle;   

DOI  :  

来源: DOAJ

【 摘 要 】

The theory of optimal control used is based on the Pontryagin maximum principle under the acoustic-vacuum exposure affecting the liquid evaporation process in an experimental container. Evaporation energy consumption for a given liquid mass is taken as an optimality criterion. The physical and mathematical model of a liquid layer with formed vapor bubbles under acoustic-vacuum exposure is based on the use of a pendulum model. A physical model of the liquid evaporation process under acoustic-vacuum exposure is developed and experimental investigations are carried out. An optimal cyclogram of acoustic-vacuum exposure is obtained, at which the energy consumption for evaporation of a given mass of liquid decreases by 2.5 times in comparison with a given cyclogram of acoustic-vacuum exposure. The obtained experimental results demonstrate close coincidence with the theoretical results, the maximum discrepancy being below 9%.

【 授权许可】

Unknown