典型文献
Mass transfer intensification and mechanism analysis of gas-liquid two-phase flow in the microchannel embedding triangular obstacles
文献摘要：
An effective mass transfer intensification method was proposed by embedding different triangular obsta-cles to improve the gas-liquid mass transfer efficiency in microchannel.The influences of triangle obsta-cles configuration,obstacle interval and flow rate on the volumetric mass transfer coefficient,pressure drop and energy consumption were investigated experimentally.The enhancement factor was used to quantify the mass transfer enhancement effect of triangle obstacles.It was found that the isosceles or equilateral triangle obstacles are superior to the rectangular obstacles.The maximum enhancement fac-tor of equilateral triangle obstacles was 2.35.Considering comprehensively mass transfer enhancement and energy consumption,the isosceles triangle obstacle showed the best performance,its maximum enhancement factor was 2.1,while the maximum pressure drop increased only 0.41 kPa(22％)compared to the microchannel without obstacles.Furthermore,a micro-particle image velocimetry(micro-PIV)was utilized to observe the flow field distribution and evolution,in order to understand and analyze the enhancement mechanism.The micro-PIV measurement indicated that the obstacle structure could induce the formation of vortex,which promotes convective mass transfer and thins the flow boundary layer,accordingly,the gas-liquid mass transfer efficiency is remarkably improved.This study can provide theoretical guidance and support for the design and optimization of microchannel with triangular obstacles.
文献关键词：
中图分类号：
作者姓名：
Xuanyu Nie;Chunying Zhu;Taotao Fu;Youguang Ma
作者机构：
State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China
文献出处：
引用格式：
[1]Xuanyu Nie;Chunying Zhu;Taotao Fu;Youguang Ma-.Mass transfer intensification and mechanism analysis of gas-liquid two-phase flow in the microchannel embedding triangular obstacles)[J].中国化学工程学报（英文版）,2022(11):100-108
A类：
isosceles,thins
B类：
Mass,transfer,intensification,mechanism,analysis,gas,liquid,two,phase,flow,microchannel,embedding,triangular,obstacles,An,effective,mass,method,was,proposed,by,different,efficiency,influences,triangle,configuration,interval,rate,volumetric,coefficient,pressure,drop,energy,consumption,were,investigated,experimentally,enhancement,used,quantify,It,found,that,equilateral,superior,rectangular,maximum,Considering,comprehensively,showed,best,performance,its,while,increased,only,kPa,compared,without,Furthermore,particle,image,velocimetry,PIV,utilized,observe,field,distribution,evolution,order,understand,analyze,measurement,indicated,structure,could,induce,formation,vortex,which,promotes,convective,boundary,layer,accordingly,remarkably,improved,This,study,can,provide,theoretical,guidance,support,design,optimization
AB值：
0.456557
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