Heat transfer characteristics of a binary thin liquid film in a microchannel with constant heat flux boundary condition

doi:10.1016/j.ijthermalsci.2018.08.043

GIEC OpenIR

	Heat transfer characteristics of a binary thin liquid film in a microchannel with constant heat flux boundary condition
	Zhou, Leping 1; Zhou, Shengni 1,2; Du, Xiaoze 1; Yang, Yongping 1
	2018-12-01
发表期刊	INTERNATIONAL JOURNAL OF THERMAL SCIENCES
ISSN	1290-0729
卷号	134 页码:612-621
通讯作者	Zhou, Leping(lpzhou@ncepu.edu.cn)
摘要	Thin film evaporation of multi-component fluids in microchannels is important in many industrial applications, which requires comprehensive modeling of the transport mechanisms in the liquid, gas and solid phases. This paper presents a numerical study on the heat transfer characteristics of a binary thin liquid film in a micro channel with constant heat flux boundary condition, using the enhanced Young-Laplace equation that considers the effect of disjoining pressure for binary fluids. Effects of temperature, microchannel size, and non-condensable gas on the binary thin film heat transfer was analyzed. The results show that the thin film contribution to the total heat transfer rate reduces when the initial temperature increases, but the difference between them decreases as the microchannel size reduces. Size effect can be prominent when the characteristic microchannel size is smaller than 10 gm. When the microchannel size decreases, the cumulative heat transfer rate across the interface of the solution decreases, while the thin film contribution to the total heat transfer rate increases obviously. The non-condensable gas deteriorates the cumulative heat transfer rate, but the deterioration reduces under the high temperature condition as compared to that under the low temperature condition. Comparison of the results shows that the temperature and microchannel size have the greatest effect on the heat transfer followed by the non-condensable gas. This can be efficiently utilized for heat transfer enhancement and thermal design in applications involving phase-change heat transfer of multi-component fluids in microchannels.
关键词	Thin film Binary fluid Temperature Channel size Non-condensable gas
DOI	10.1016/j.ijthermalsci.2018.08.043
关键词[WOS]	EVAPORATING MENISCUS ; DISJOINING PRESSURE ; CONTACT LINE ; THERMOPHYSICAL PROPERTIES ; EXTENDED MENISCUS ; THEORETICAL-MODEL ; INTERFACIAL SLIP ; MASS-TRANSFER ; TRANSPORT ; REGION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[91634115]
WOS研究方向	Thermodynamics ; Engineering
项目资助者	National Natural Science Foundation of China
WOS类目	Thermodynamics ; Engineering, Mechanical
WOS记录号	WOS:000447572700033
出版者	ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/24022
专题	中国科学院广州能源研究所
通讯作者	Zhou, Leping
作者单位	1.North China Elect Power Univ, Minist Educ, Sch Energy Power & Mech Engn, Key Lab Condit Monitoring & Control Power Plant E, Beijing 102206, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510070, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Leping,Zhou, Shengni,Du, Xiaoze,et al. Heat transfer characteristics of a binary thin liquid film in a microchannel with constant heat flux boundary condition[J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES,2018,134:612-621.
APA	Zhou, Leping,Zhou, Shengni,Du, Xiaoze,&Yang, Yongping.(2018).Heat transfer characteristics of a binary thin liquid film in a microchannel with constant heat flux boundary condition.INTERNATIONAL JOURNAL OF THERMAL SCIENCES,134,612-621.
MLA	Zhou, Leping,et al."Heat transfer characteristics of a binary thin liquid film in a microchannel with constant heat flux boundary condition".INTERNATIONAL JOURNAL OF THERMAL SCIENCES 134(2018):612-621.