Investigations on the energy conversion in sonochemical processes

被引:123
作者
Löning, JM
Horst, C
Hoffmann, U
机构
[1] Tech Univ Clausthal, Inst Chem Verfahrenstech, D-38678 Clausthal Zellerfeld, Germany
[2] BASF Aktiengesellsch, D-67056 Ludwigshafen, Germany
关键词
sonochemistry; power ultrasound; cavitation; energy conversion; sonochemical efficiency;
D O I
10.1016/S1350-4177(01)00113-4
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In the present work the energy transformation in sonochemical processes is studied by using electrical power measurement techniques and calorimetry. The influence of the ultrasonic amplitude and the properties of the irradiated medium on the efficiency of the equipment is shown. With increasing temperature and increasing solvent vapor pressure less energy can be brought into the fluid. More energy is consumed in high viscous media than in low viscous liquids. Finally the quality of calorimetry is discussed and a new energy-based efficiency factor for sonochemical processes is introduced. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:169 / 179
页数:11
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