2013 Fiscal Year Final Research Report
Study on sonochemistry and sonoluminescence in a microreactor
| Project/Area Number |
23560917
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Reaction engineering/Process system
|
|---|
| Research Institution | The University of Electro-Communications |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TUZIUTI Toru 独立行政法人産業技術総合研究所, 計測フロンティア研究部門, 主任研究員 (70357515)
YASUI Kyuichi 独立行政法人産業技術総合研究所, 先進製造プロセス研究部門, 主任研究員 (30277842)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
KOZUKA Teruyuki 独立行政法人産業技術総合研究所, 先進製造プロセス研究部門, 主任研究員 (60357001)
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Keywords | マイクロリアクター / ソノケミストリー（超音波化学） / ソノルミネッセンス（音響発光） / ソノケミルミネッセンス（音響化学発光） / 音響キャビテーション / 気泡ダイナミクス / シングルバブル / ヒドロキシルラジカル定量 |
|---|
| Research Abstract |
Sonochemistry, chemical effects of ultrasound, in a microreactor was studied by a microfluidic experiment using a 0.1 mm x 0.1 mm microchannel and a single-bubble cavitation experiment. The microfluidic results demonstrated that, at relatively low levels of power density, selecting a solution of dissolved gas degree of saturation (DOS) in the supersaturation range at atmospheric pressure resulted in higher yields per unit volume in the 1D space compared to that obtained from the 3D space. This effect is attributed to a decrease in the cavitation threshold of the 1D reaction system. The single-bubble results showed that the hydroxyl radical amount for a dancing bubble, where the single bubble was dancing below the lower threshold of pressure amplitude for sonoluminescence, was greater than that for a stable bubble. The results imply that the instability of bubbles significantly enhances sonochemical efficiency in liquid phase.
|
