成果信息
Bubble growth characteristics in bi-component liquid: Influence of component concentration and liquid temperature
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文献类型:期刊论文
标题:Bubble growth characteristics in bi-component liquid: Influence of component concentration and liquid temperature
作者:Liu, Hong[1];Cai, Chang[1];Jia, Ming[1];Yan, Yan'an[1];Xi, Xi[1]
机构:
通讯作者:Liu, H; Jia, M (reprint author), Dalian Univ Technol, Sch Energy & Power Engn, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116024, Peoples R China.
来源信息:年:2018  卷:192  页码范围:1-15  
期刊信息:CHEMICAL ENGINEERING SCIENCE影响因子和分区  ISSN:0009-2509
增刊:正刊
收录情况:SCIE(WOS:000443999000001)  
所属部门:能源与动力学院
语言:外文
发表时间:2018-12-31
全文链接:DOI百度学术
人气指数:173
浏览次数:173
基金:National Key Research and Development Program of China [2017YFA0700300]; National Natural Science Foundation of China [51376038, 91641117]; Open subject of the State Key Laboratory of Engines (Tianjin University) [K2018-04]
关键词:Bubble growth; Binary mixture; Heat transfer; Mass diffusion
摘要:A thermodynamic model for bubble growth in superheated liquid mixture was developed to investigate the heat transfer and mass diffusion mechanisms. The influence of component concentration and liquid temperature on bubble growth characteristics is the main focus of the present study. In the proposed model, the energy equation and the component diffusion equation for the liquid were coupled with the assumed quadratic temperature and concentration distribution within the liquid boundary layer. The vapor-liquid equilibrium of the binary mixture was estimated by the non-random two-liquid (NRTL) equation. The comparison between the current calculated results with the available experimental data demonstrates the accuracy of the proposed bubble growth model. The results show that the later stage of bubble growth in a binary mixture is primarily controlled by mass diffusion and also influenced by heat transfer. The bubble growth characteristics strongly depend on the mass fraction of the more volatile component and the liquid temperature. Both higher liquid temperature and concentration of the light component are beneficial to enhance the bubble growth. The effect of mass diffusion on bubble growth becomes weaker with increasing liquid temperature and decreasing initial mass fraction of the more volatile component. (C) 2018 Elsevier Ltd. All rights reserved.
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