Effect of surface properties on the flow characteristics and mass transfer performance in microchannels
文献类型：期刊论文
| 作者 | Zhao, Yuchao; Su, Yuanhai; Chen, Guangwen; Yuan, Quan |
| 刊名 | chemical engineering science
 |
| 出版日期 | 2010-03-01 |
| 卷号 | 65期号:5页码:1563-1570 |
| 关键词 | Immiscible fluids Microreactor Microchannel Mass transfer Surface modification |
| 英文摘要 | in this work, the influence of surface properties on the flow characteristics and mass transfer performance of two immiscible liquids are investigated in the opposed and cross-flow configuration microchannels, as the volumetric flux ratio is far <1. for visually identifying flow patterns in transparent pmma microchannels, dyed de-ionized water and kerosene are selected as test fluids. to investigate the mass transfer characteristics in stainless steel microchannels, water-succinic acid-n-butanol is chosen as a typical system. reynolds number varied between 11 and 275. only at low rem numbers, the dispersed phase flow pattern can occur in the opposed t-shaped pmma microchannel before surface modification. at higher rem numbers, only the continuous phase flow pattern (parallel flow) is observed before and after surface modification. moreover, the fluctuation amplitude after surface modification is larger than before surface modification at the opposed t-junction. to eliminate the effects of the sampling intervals and separation process of oil-water two phases on mass transfer performance, one new testing method is established by manufacturing the novel oil-water separator based on the principle of siphon. for the conditions applied during the study, the overall volumetric mean mass transfer coefficients range from 0.19 to 11.96 s(-1), which are one or three orders of magnitude higher than those in typical conventional large scaled contactors. (c) 2009 elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | engineering, chemical |
| 研究领域[WOS] | engineering |
| 关键词[WOS] | liquid slug-flow ; capillary-microreactor ; heat-transfer ; reactor ; intensification ; contactors ; patterns |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000275588500006 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141651]  |
| 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 |
| 作者单位 | Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yuchao,Su, Yuanhai,Chen, Guangwen,et al. Effect of surface properties on the flow characteristics and mass transfer performance in microchannels[J]. chemical engineering science,2010,65(5):1563-1570. |
| APA | Zhao, Yuchao,Su, Yuanhai,Chen, Guangwen,&Yuan, Quan.(2010).Effect of surface properties on the flow characteristics and mass transfer performance in microchannels.chemical engineering science,65(5),1563-1570. |
| MLA | Zhao, Yuchao,et al."Effect of surface properties on the flow characteristics and mass transfer performance in microchannels".chemical engineering science 65.5(2010):1563-1570. |
入库方式： OAI收割
来源：大连化学物理研究所
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