Micro-Bubble Generation by Using Pipe with Slits
| Autor: | Hiroaki Hasegawa, Yusuke Yoshida, Yasuhiro Masaki, Kazuo Matsuuchi |
|---|---|
| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 72:2242-2248 |
| ISSN: | 1884-8346 0387-5016 |
| Popis: | Micro-bubbles are very small air bubbles with diameters of the order of less than several tens microns and have become to attract people's concerns rapidly in the past several years due to their wide potential in practical applications to a variety of advanced technologies (e. g. water quality purification, fish culture and sterilization). Their generating technologies are also splendidly developed. However, a complex device and a high power supply are required for conventional microbubble generators. In this study, the compact and low power micro-bubble generator has been developed and the micro-bubbles are generated by the local shear stress in the flow through a pipe with slits. The small bubbles with 40-50μm of the diameter were generated and the micro-bubble generation was affected by the slit angle. Finally in order to verify the applicability of purification system, a floatation experiment was carried out for three models with a different slit angle (θ=30, 60 and 90 deg). The θ=60 deg case shows the superior performance compared to the other models. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|