4. ソノルミネッセンス発光強度測定によるソノケミカル反応器の最適設計の検討

概要

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To design an optimal sonochemical reactor, changes of acoustic energy transmitted into a reactor cell have been studied theoretically and experimentally. The model was rectangular glass cell settled in a water-cooling bath. The ultrasound was emitted from the bottom of bath into the reactor cell. Theoretical analysis of the transmitted acoustic energy assuming plane sound waves clarified influences of distance between the transducer and the cell bottom, thickness of the cell bottom, and water depth in the cell. The theory was examined through intensity measurement of sonoluminescence (SL) emitted in the cell using a photomultiplier tube, which is expected to be a good index of the sonochemical reaction field. Dependence of SL intensity on the above-mentioned parameters agreed with the theory very well. Distributions of SL in the cell were also observed using a high-sensitive CCD camera and compared with optically visualized sound fields to show the influence of sound field on the SL. [Work supported by NEDO / Japan Small Business Corporation.]
日本ソノケミストリー学会の論文