文献类型：期刊文献

中文题名：微通道中两相流压降与传质的研究

英文题名：Study on Two-Phase Flow Pressure Drop and Mass Transfer in Parallel Microchannels

作者：聂晶尧[1];宋宏宇[1];袁向前[1];周兴贵[1]

机构：[1]华东理工大学联合化学反应工程研究所,上海200237

年份：2007

卷号：23

期号：4

起止页码：309

中文期刊名：化学反应工程与工艺

外文期刊名：Chemical Reaction Engineering and Technology

收录：CSTPCD;;EI(收录号：20075110983681);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：微通道;压降;传质;两相流

外文关键词：microchannels; pressure drop; mass transfer; two-phase flow

摘要：以氮气和水为实验体系,采用均质混合模型,研究微混合器的微通道中两相流通过微通道的压降,并测定了两相流的传质系数。结果表明,微通道当量直径为95.2μm,气体速率为1.089～4.355 m/s,液体速率为0.006 41～0.170 90 m/s的条件下,均质混合模型计算压降值与实测值吻合良好。气速为1.633～3.484 m/s,液速为0.025 6 m/s时,随着气速增加,传质系数呈递增的趋势。气速为1.633～3.484 m/s,液速为0.019 2 m/s时,随着气速增加,传质系数先增加后降低然后再增加。传质系数对液速变化更为敏感。
Pressure drop and mass transfer coefficient of two-phase flow in micro-channels were measured by homogeneous hybrid model in N2-H2O two-phase flow experimental system. The results showed that the pressure drop values calculated by the homogeneous hybrid model agreed with the experimental values on the conditions of microchannels equivalent diameters 92.5 μm, superficial gas velocity 1. 089-4. 355 m/s and superficial liquid velocity 0. 006 41-0. 170 90 m/s. The mass transfer coefficient increased with the increase of the ratio of superficial gas velocity to superficial liquid velocity under the liquid velocity 0.025 6 m/s when the superficial gas velocity was 1. 633-3. 484 m/s. The mass transfer coefficient firstly increased with the increase of the ratio of superficial gas velocity to superficial liquid velocity then decreased with it, lastly increased with it again, when the superficial gas velocity was 1. 633-3. 484 m/s. The mass transfer coefficient was influenced by the liquid velocity more.