Dynamics and heat-transfer characteristics of the liquid film flow in upward- and vertical-facing spray cooling

doi:10.1016/j.ijheatmasstransfer.2024.125995

IMECH-IR > 微重力重点实验室

	Dynamics and heat-transfer characteristics of the liquid film flow in upward- and vertical-facing spray cooling
	Yang, Zhuqiang 1; Chen, Yin 1,2; Zhao X(赵霄)2; Li K(李凯)2,3 ; Zhao JF(赵建福)2,3
通讯作者	Zhao, Xiao([email protected])
发表期刊	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
	2024-11-15
卷号	233 页码:16
ISSN	0017-9310
摘要	In this study, an experimental investigation was conducted on the dynamics and heat-transfer characteristics of liquid film flow for upward- and vertical-facing spray cooling. The heat-transfer performances at different inlet pressures, nozzle-to-surface distances, and heat flux inputs between the two orientations were compared, and the morphologies, wetted areas, and velocities of the isolated liquid films were quantitatively captured. The morphologies of the HFE-7100 liquid films and their distributions on the vertical and upward surfaces exhibited no significant differences. In most cases, the heat-transfer performance of the upward surface was slightly better than that of the vertical surface. Gravity affected the velocity of the isolated liquid films on a smooth vertical surface, whereas its effect was significantly suppressed on an unpolished surface. The Bond number of the isolated liquid film flow on the upward surface was verified to be naturally smaller than that on the vertical surface. Dimensionless groups, including the Bo, We, and Re numbers of the liquid film flow in spray cooling, were obtained to further account for the effect of gravity. The reason why the dimensionless groups presented such small orders was explained. The data map of liquid film flow (dimensionless groups) during spray cooling was further enriched.
关键词	Spray cooling Surface orientation Liquid film Gravity effect
DOI	10.1016/j.ijheatmasstransfer.2024.125995
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001285180400001
关键词[WOS]	BOILING REGIMES ; SINGLE-PHASE ; WATER SPRAY ; THICKNESS ; GRAVITY ; SURFACE ; VISUALIZATION
WOS研究方向	Thermodynamics ; Engineering ; Mechanics
WOS类目	Thermodynamics ; Engineering, Mechanical ; Mechanics
资助项目	National Natural Science Foundation of China[52106077] ; Young Elite Scientists Sponsorship Program by CAST[2022QNRC001] ; National Key R & D Program of China[2022YFF0503502] ; Science Center for Gas Turbine Project[P2022-B-11-022-001]
项目资助者	National Natural Science Foundation of China ; Young Elite Scientists Sponsorship Program by CAST ; National Key R & D Program of China ; Science Center for Gas Turbine Project
论文分区	一类
力学所作者排名	1
RpAuthor	Zhao, Xiao
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/96287
专题	微重力重点实验室
作者单位	1.Dalian Univ Technol, Sch Energy & Power Engn, Liaoning Key Lab Complex Energy Convers & Utilisat, Dalian 116024, Peoples R China; 2.Chinese Acad Sci, Inst Mech, CAS Key Lab Micrograv, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Zhuqiang,Chen, Yin,Zhao X,et al. Dynamics and heat-transfer characteristics of the liquid film flow in upward- and vertical-facing spray cooling[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2024,233:16.Rp_Au:Zhao, Xiao
APA	Yang, Zhuqiang,Chen, Yin,赵霄,李凯,&赵建福.(2024).Dynamics and heat-transfer characteristics of the liquid film flow in upward- and vertical-facing spray cooling.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,233,16.
MLA	Yang, Zhuqiang,et al."Dynamics and heat-transfer characteristics of the liquid film flow in upward- and vertical-facing spray cooling".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 233(2024):16.