Hydrodynamics and mass transfer of oscillating gas-liquid flow in ultrasonic microreactors
文献类型：期刊论文
| 作者 | Dong, Zhengya1,2; Yao, Chaoqun1,2; Zhang, Yuchao1,2; Chen, Guangwen1; Yuan, Quan1; Xu, Jie3 |
| 刊名 | AICHE JOURNAL
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 62期号:4页码:1294-1307 |
| 关键词 | Ultrasound Microfluidic Taylor Flow Sonochemistry Acoustic Cavitation |
| ISSN号 | 0001-1541 |
| DOI | 10.1002/aic.15091 |
| 文献子类 | Article |
| 英文摘要 | Ultrasonic microreactors were used to intensify gas-liquid mass-transfer process and study the intensification mechanism. Fierce surface wave oscillation with different modes was excited on the bubble. It was found that for slug bubbles confined in smaller microchannel, surface wave oscillations require more ultrasound energy to excite due to the confinement effect. Cavitation microstreaming with two toroidal vortices was observed near the oscillating bubble by a streak photography experiment. Surface wave oscillation at the gas-liquid interface increases the specific surface area, while cavitation microstreaming accelerates the interface renewal and thus improves the individual mass-transfer coefficient. With these two reasons, the overall mass-transfer coefficient was enhanced by 3-20 times under ultrasonication. As for gas-liquid flow hydrodynamics, ultrasound oscillation disturbs the bubble formation process and changes the initial bubble length and pressure drop. (c) 2015 American Institute of Chemical Engineers AIChE J, 62: 1294-1307, 2016 |
| WOS关键词 | SLUG FLOW ; PRESSURE-DROP ; TAYLOR FLOW ; RECTANGULAR MICROCHANNEL ; TRANSFER COEFFICIENTS ; MICROFLUIDIC DEVICES ; SEGMENTED FLOW ; LONG BUBBLES ; CAVITATION ; REACTORS |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000372912500029 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170662]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Chen, Guangwen |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shaanxi Normal Univ, Appl Acoust Inst, Xian 710062, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Zhengya,Yao, Chaoqun,Zhang, Yuchao,et al. Hydrodynamics and mass transfer of oscillating gas-liquid flow in ultrasonic microreactors[J]. AICHE JOURNAL,2016,62(4):1294-1307. |
| APA | Dong, Zhengya,Yao, Chaoqun,Zhang, Yuchao,Chen, Guangwen,Yuan, Quan,&Xu, Jie.(2016).Hydrodynamics and mass transfer of oscillating gas-liquid flow in ultrasonic microreactors.AICHE JOURNAL,62(4),1294-1307. |
| MLA | Dong, Zhengya,et al."Hydrodynamics and mass transfer of oscillating gas-liquid flow in ultrasonic microreactors".AICHE JOURNAL 62.4(2016):1294-1307. |
入库方式： OAI收割
来源：大连化学物理研究所
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