ANALYSIS OF ENERGY EFFICIENCY OF A BOX TYPE SONO-REACTOR AT RESONANCE
The acoustic cavitation effect has huge potential applications in a number of industrial fields. Nevertheless, the traditional sono-reactors cannot completely satisfy the industrial processing demands nowadays. One reason for this is the operational cost due to the electric energy consumption. Aiming to overcome the disadvantage, based on a box type sonoreactor (inner size 125.4×40×47 mm3) with one PZT ceramic vibrator and 0.19 L processed solution, the whole systems energy utilization efficiencies at two resonance frequencies, 12.13 kHz and 57.05 kHz, have been investigated. Using calorimetric method and titration, the radiated acoustic energy, total energy efficiency, cavitation efficiency, and electroacoustic efficiency have been measured, respectively. It is found that the more the input volume power is, the less the total energy efficiency would be, both at 12.13 kHz and 57.05 kHz; the total energy efficiency of 12.13 kHz is greater than that of 57.05 kHz, because the micro bubbles caused by the acoustic cavitation absorb acoustic energy. To obtain good energy efficiency and cavitation effect, the input electric power per unit volume should be proper.
Sono-reactor Acoustic cavitation Energy efficiency Electroacoustic efficiency Cavitation efficiency
Han-min PENG Jin-juan ZHOU Jun-hui HU
State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
国际会议
深圳
英文
9-12
2011-12-09（万方平台首次上网日期，不代表论文的发表时间）