Evaporation of liquid under acoustic-vacuum exposure

被引：1
|
作者：
Trushlyakov, V., I [1 ]
Panichkin, A., V [2 ]
Lesnyak, I. Y. [1 ]
机构：
[1] Omsk State Tech Univ, Dept Avia & Rocket Bldg, 11 Mira St, Omsk 644050, Russia
[2] Russian Acad Sci, Siberian Branch, Sobolev Inst Math, 4 Acad Koptyug Ave, Novosibirsk 630090, Russia
来源：
CASE STUDIES IN THERMAL ENGINEERING | 2021年 / 28卷
关键词：
Evaporation; Liquid; Steam bubbles; Acoustic-vacuum exposure; Pontryagin maximum principle; FLASH EVAPORATION; ULTRASOUND; PRETREATMENT; KINETICS;
D O I：
10.1016/j.csite.2021.101679
中图分类号：
O414.1 [热力学];
学科分类号：
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%.
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页数：16
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