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题名: A high-power ultrasonic microreactor and its application in gas-liquid mass transfer intensification
作者: Dong, Zhengya1, 2;  Yao, Chaoqun1, 2;  Zhang, Xiaoli3;  Xu, Jie3;  Chen, Guangwen1;  Zhao, Yuchao1;  Yuan, Quan1
刊名: LAB ON A CHIP
发表日期: 2015
DOI: 10.1039/c4lc01431f
卷: 15, 期:4, 页:1145-1152
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biochemical Research Methods ;  Chemistry, Multidisciplinary ;  Nanoscience & Nanotechnology
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry ;  Science & Technology - Other Topics
英文摘要: The combination of ultrasound and microreactor is an emerging and promising area, but the report of designing high-power ultrasonic microreactor (USMR) is still limited. This work presents a robust, high-power and highly efficient USMR by directly coupling a microreactor plate with a Langevin-type transducer. The USMR is designed as a longitudinal half wavelength resonator, for which the antinode plane of the highest sound intensity is located at the microreactor. According to one dimension design theory, numerical simulation and impedance analysis, a USMR with a maximum power of 100 W and a resonance frequency of 20 kHz was built. The strong and uniform sound field in the USMR was then applied to intensify gas-liquid mass transfer of slug flow in a microfluidic channel. Non-inertial cavitation with multiple surface wave oscillation was excited on the slug bubbles, enhancing the overall mass transfer coefficient by 3.3-5.7 times.
关键词[WOS]: CAVITY ACOUSTIC TRANSDUCER ;  MICROSTRUCTURED REACTORS ;  RECTANGULAR MICROCHANNEL ;  MICROFLUIDIC SYSTEMS ;  SLUG FLOW ;  BUBBLE ;  CAVITATION ;  HYDRODYNAMICS ;  CAPILLARIES ;  PERFORMANCE
语种: 英语
WOS记录号: WOS:000349404200025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145931
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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

Recommended Citation:
Dong, Zhengya,Yao, Chaoqun,Zhang, Xiaoli,et al. A high-power ultrasonic microreactor and its application in gas-liquid mass transfer intensification[J]. LAB ON A CHIP,2015,15(4):1145-1152.
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